Spartan-7 FPGAs Data Sheet:
DC and AC Switching Characteristics
DS189 (v1.9) March 13, 2019
Product Specification
Introduction
Spartan®-7 FPGAs are available in -2, -1, and -1L speed grades, with -2 having the highest performance.
The Spartan-7 FPGAs predominantly operate at a 1.0V core voltage. The -1L devices are screened for lower
maximum static power and can operate at lower core voltages for lower dynamic power than the -1
devices. The -1L devices operate only at VCCINT = VCCBRAM = 0.95V and have the same speed
specifications as the -1 speed grade.
Spartan-7 FPGA DC and AC characteristics are specified in commercial (C), industrial (I), and expanded (Q)
temperature ranges. Except the operating temperature range or unless otherwise noted, all the DC and AC
electrical parameters are the same for a particular speed grade (that is, the timing characteristics of a -1Q
expanded speed grade device are the same as for a -1C commercial speed grade device). However, only
selected speed grades and/or devices are available in each temperature range. For example, the -1L speed
grade is only available in the industrial (I) temperature range.
All supply voltage and junction temperature specifications are representative of worst-case conditions.
The parameters included are common to popular designs and typical applications.
Available device and package combinations can be found in:
•
7 Series FPGAs Overview (DS180) [Ref 1]
•
XA Spartan-7 Automotive FPGA Data Sheet: Overview (DS171) [Ref 2]
This Spartan-7 FPGA data sheet, part of an overall set of documentation on the 7 series FPGAs, is available
on the Xilinx website at www.xilinx.com/documentation.
DC Characteristics
Table 1: Absolute Maximum Ratings(1)
Symbol
Description
Min
Max
Units
FPGA Logic
VCCINT
Internal supply voltage.
–0.5
1.1
V
VCCAUX
Auxiliary supply voltage.
–0.5
2.0
V
VCCBRAM
Supply voltage for the block RAM memories.
–0.5
1.1
V
VCCO
Output drivers supply voltage for HR I/O banks.
–0.5
3.6
V
VREF
Input reference voltage.
–0.5
2.0
V
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 1: Absolute Maximum Ratings(1) (Cont’d)
Symbol
Description
Min
Max
Units
I/O input voltage.
–0.4
VCCO + 0.55
V
VIN(2)(3)(4)
I/O input voltage (when VCCO = 3.3V) for VREF and differential I/O
standards except TMDS_33.(5)
–0.4
2.625
V
VCCBATT
Key memory battery backup supply.
–0.5
2.0
V
VCCADC
XADC supply relative to GNDADC.
–0.5
2.0
V
VREFP
XADC reference input relative to GNDADC.
–0.5
2.0
V
Storage temperature (ambient).
–65
150
°C
–
+220
°C
–
+260
°C
–
+125
°C
XADC
Temperature
TSTG
TSOL
Tj
Maximum soldering temperature for Pb/Sn component bodies.(6)
Maximum soldering temperature for Pb-free component
Maximum junction
temperature.(6)
bodies.(6)
Notes:
1.
2.
3.
4.
5.
6.
Stresses beyond those listed under Absolute Maximum Ratings might cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those listed under Operating Conditions is not implied.
Exposure to Absolute Maximum Ratings conditions for extended periods of time might affect device reliability.
The lower absolute voltage specification always applies.
For I/O operation, refer to the 7 Series FPGAs SelectIO Resources User Guide (UG471) [Ref 3].
The maximum limit applies to DC signals. For maximum undershoot and overshoot AC specifications, see Table 4.
See Table 9 for TMDS_33 specifications.
For soldering guidelines and thermal considerations, see the 7 Series FPGA Packaging and Pinout Specification (UG475) [Ref 4].
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 2: Recommended Operating Conditions(1)(2)
Symbol
Description
Min
Typ
Max
Units
For -2 and -1 (1.0V) devices: internal supply voltage.
0.95
1.00
1.05
V
For -1L (0.95V) devices: internal supply voltage.
0.92
0.95
0.98
V
Auxiliary supply voltage.
1.71
1.80
1.89
V
For -2 and -1 (1.0V) devices: block RAM supply voltage.
0.95
1.00
1.05
V
For -1L (0.95V) devices: block RAM supply voltage.
0.92
0.95
0.98
V
Supply voltage for HR I/O banks.
1.14
–
3.465
V
I/O input voltage.
–0.20
–
VCCO + 0.20
V
I/O input voltage (when VCCO = 3.3V) for VREF and
differential I/O standards except TMDS_33.(7)
–0.20
–
2.625
V
–
–
10
mA
1.0
–
1.89
V
FPGA Logic
VCCINT(3)
VCCAUX
VCCBRAM(3)
VCCO(4)(5)
VIN(6)
IIN(8)
Maximum current through any pin in a powered or unpowered
bank when forward biasing the clamp diode.
VCCBATT(9)
Battery voltage.
XADC
VCCADC
XADC supply relative to GNDADC.
1.71
1.80
1.89
V
VREFP
Externally supplied reference voltage.
1.20
1.25
1.30
V
0
–
85
°C
–40
–
100
°C
–40
–
125
°C
Temperature
Junction temperature operating range for commercial (C)
temperature devices.
Junction temperature operating range for industrial (I)
temperature devices.
Tj
Junction temperature operating range for expanded (Q)
temperature devices.
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
All voltages are relative to ground.
For the design of the power distribution system consult the 7 Series FPGAs PCB Design Guide (UG483) [Ref 5].
If VCCINT and VCCBRAM are operating at the same voltage, VCCINT and VCCBRAM should be connected to the same supply.
Configuration data is retained even if VCCO drops to 0V.
Includes VCCO of 1.2V, 1.35V, 1.5V, 1.8V, 2.5V, and 3.3V at ±5%.
The lower absolute voltage specification always applies.
See Table 9 for TMDS_33 specifications.
A total of 200 mA per bank should not be exceeded.
VCCBATT is required only when using bitstream encryption. If battery is not used, connect VCCBATT to either ground or VCCAUX.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 3: DC Characteristics Over Recommended Operating Conditions
Symbol
Description
Min
Typ(1)
Max
Units
VDRINT
Data retention VCCINT voltage (below which configuration
data might be lost).
0.75
–
–
V
VDRI
Data retention VCCAUX voltage (below which configuration
data might be lost).
1.5
–
–
V
IREF
VREF leakage current per pin.
–
–
15
µA
IL
Input or output leakage current per pin (sample-tested).
–
–
15
µA
CIN(2)
Die input capacitance at the pad.
–
–
8
pF
Pad pull-up (when selected) at VIN = 0V, VCCO = 3.3V.
90
–
330
µA
Pad pull-up (when selected) at VIN = 0V, VCCO = 2.5V.
68
–
250
µA
Pad pull-up (when selected) at VIN = 0V, VCCO = 1.8V.
34
–
220
µA
Pad pull-up (when selected) at VIN = 0V, VCCO = 1.5V.
23
–
150
µA
Pad pull-up (when selected) at VIN = 0V, VCCO = 1.2V.
12
–
120
µA
IRPD
Pad pull-down (when selected) at VIN = 3.3V.
68
–
330
µA
ICCADC
Analog supply current, analog circuits in powered up state.
–
–
25
mA
IBATT(3)
Battery supply current.
–
–
150
nA
Thevenin equivalent resistance of programmable input
termination to VCCO/2 (UNTUNED_SPLIT_40).
28
40
55
Ω
Thevenin equivalent resistance of programmable input
termination to VCCO/2 (UNTUNED_SPLIT_50).
35
50
65
Ω
Thevenin equivalent resistance of programmable input
termination to VCCO/2 (UNTUNED_SPLIT_60).
44
60
83
Ω
IRPU
RIN_TERM(4)
n
Temperature diode ideality factor.
–
1.010
–
–
r
Temperature diode series resistance.
–
2
–
Ω
Notes:
1.
2.
3.
4.
Typical values are specified at nominal voltage, 25°C.
This measurement represents the die capacitance at the pad, not including the package.
Maximum value specified for worst case process at 25°C.
Termination resistance to a VCCO/2 level.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 4: VIN Maximum Allowed AC Voltage Overshoot and Undershoot for HR I/O Banks(1)(2)
AC Voltage Overshoot
% of UI at –40°C to 125°C
VCCO + 0.55
AC Voltage Undershoot
% of UI at –40°C to 125°C
–0.40
100
–0.45
61.7
–0.50
25.8
–0.55
11.0
100
VCCO + 0.60
46.6
–0.60
4.77
VCCO + 0.65
21.2
–0.65
2.10
VCCO + 0.70
9.75
–0.70
0.94
VCCO + 0.75
4.55
–0.75
0.43
VCCO + 0.80
2.15
–0.80
0.20
VCCO + 0.85
1.02
–0.85
0.09
VCCO + 0.90
0.49
–0.90
0.04
VCCO + 0.95
0.24
–0.95
0.02
Notes:
1.
2.
A total of 200 mA per bank should not be exceeded.
The peak voltage of the overshoot or undershoot, and the duration above VCCO + 0.20V or below GND – 0.20V, must not exceed the values
in this table.
Table 5: Typical Quiescent Supply Current(1)(2)(3)
Speed Grade
Symbol
ICCINTQ
Description
Quiescent VCCINT supply current.
DS189 (v1.9) March 13, 2019
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Device
1.0V
0.95V Units
-2C
-2I
-1C
-1I
-1Q
-1LI
XC7S6
36
36
36
36
36
32
mA
XC7S15
36
36
36
36
36
32
mA
XC7S25
48
48
48
48
48
43
mA
XC7S50
95
95
95
95
95
59
mA
XC7S75
148
148
148
148
148
134
mA
XC7S100
148
148
148
148
148
134
mA
XA7S6
N/A
36
N/A
36
36
N/A
mA
XA7S15
N/A
36
N/A
36
36
N/A
mA
XA7S25
N/A
48
N/A
48
48
N/A
mA
XA7S50
N/A
95
N/A
95
95
N/A
mA
XA7S75
N/A
148
N/A
148
148
N/A
mA
XA7S100
N/A
148
N/A
148
148
N/A
mA
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 5: Typical Quiescent Supply Current(1)(2)(3) (Cont’d)
Speed Grade
Symbol
ICCOQ
ICCAUXQ
Description
Quiescent VCCO supply current.
Quiescent VCCAUX supply current.
DS189 (v1.9) March 13, 2019
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Device
1.0V
0.95V Units
-2C
-2I
-1C
-1I
-1Q
-1LI
XC7S6
1
1
1
1
1
1
mA
XC7S15
1
1
1
1
1
1
mA
XC7S25
1
1
1
1
1
1
mA
XC7S50
1
1
1
1
1
1
mA
XC7S75
4
4
4
4
4
4
mA
XC7S100
4
4
4
4
4
4
mA
XA7S6
N/A
1
N/A
1
1
N/A
mA
XA7S15
N/A
1
N/A
1
1
N/A
mA
XA7S25
N/A
1
N/A
1
1
N/A
mA
XA7S50
N/A
1
N/A
1
1
N/A
mA
XA7S75
N/A
4
N/A
4
4
N/A
mA
XA7S100
N/A
4
N/A
4
4
N/A
mA
XC7S6
10
10
10
10
10
10
mA
XC7S15
10
10
10
10
10
10
mA
XC7S25
13
13
13
13
13
13
mA
XC7S50
22
22
22
22
22
20
mA
XC7S75
43
43
43
43
43
43
mA
XC7S100
43
43
43
43
43
43
mA
XA7S6
N/A
10
N/A
10
10
N/A
mA
XA7S15
N/A
10
N/A
10
10
N/A
mA
XA7S25
N/A
13
N/A
13
13
N/A
mA
XA7S50
N/A
22
N/A
22
22
N/A
mA
XA7S75
N/A
43
N/A
43
43
N/A
mA
XA7S100
N/A
43
N/A
43
43
N/A
mA
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 5: Typical Quiescent Supply Current(1)(2)(3) (Cont’d)
Speed Grade
Symbol
ICCBRAMQ
Description
Quiescent VCCBRAM supply current.
Device
1.0V
0.95V Units
-2C
-2I
-1C
-1I
-1Q
-1LI
XC7S6
1
1
1
1
1
1
mA
XC7S15
1
1
1
1
1
1
mA
XC7S25
1
1
1
1
1
1
mA
XC7S50
2
2
2
2
2
1
mA
XC7S75
9
9
9
9
9
8
mA
XC7S100
9
9
9
9
9
8
mA
XA7S6
N/A
1
N/A
1
1
N/A
mA
XA7S15
N/A
1
N/A
1
1
N/A
mA
XA7S25
N/A
1
N/A
1
1
N/A
mA
XA7S50
N/A
2
N/A
2
2
N/A
mA
XA7S75
N/A
9
N/A
9
9
N/A
mA
XA7S100
N/A
9
N/A
9
9
N/A
mA
Notes:
1.
2.
3.
Typical values are specified at nominal voltage, 85°C junction temperature (Tj) with single-ended SelectIO™ resources.
Typical values are for blank configured devices with no output current loads, no active input pull-up resistors, all I/O pins are 3-state and
floating.
Use the Xilinx Power Estimator spreadsheet tool [Ref 6] to estimate static power consumption for conditions other than those specified.
Power-On/Off Power Supply Sequencing
The recommended power-on sequence is VCCINT, V CCBRAM, VCCAUX, and VCCO to achieve minimum current
draw and ensure that the I/Os are 3-stated at power-on. The recommended power-off sequence is the
reverse of the power-on sequence. If VCCINT and VCCBRAM have the same recommended voltage levels then
both can be powered by the same supply and ramped simultaneously. If V CCAUX and VCCO have the same
recommended voltage levels then both can be powered by the same supply and ramped simultaneously.
For V CCO voltages of 3.3V in HR I/O banks and configuration bank 0 the following conditions apply.
•
The voltage difference between VCCO and V CCAUX must not exceed 2.625V for longer than
TVCCO2VCCAUX for each power-on/off cycle to maintain device reliability levels.
•
The T VCCO2VCCAUX time can be allocated in any percentage between the power-on and power-off
ramps.
There is no recommended sequence for supplies not discussed in this section.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 6 shows the minimum current, in addition to I CCQ maximum, that is required by Spartan-7 devices for
proper power-on and configuration. If the current minimums shown in Table 6 are met, the device powers
on after all four supplies have passed through their power-on reset threshold voltages. The FPGA must not
be configured until after VCCINT is applied. Once initialized and configured, use the Xilinx Power Estimator
spreadsheet tool [Ref 6] to estimate current drain on these supplies.
Table 6: Power-On Current
ICCINTMIN
ICCAUXMIN
ICCOMIN
ICCBRAMMIN
Units
XC7S6
ICCINTQ + 120
ICCAUXQ + 40
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XC7S15
ICCINTQ + 120
ICCAUXQ + 40
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XC7S25
ICCINTQ + 120
ICCAUXQ + 40
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XC7S50
ICCINTQ + 120
ICCAUXQ + 40
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XC7S75
ICCINTQ + 300
ICCAUXQ + 140
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XC7S100
ICCINTQ + 300
ICCAUXQ + 140
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XA7S6
ICCINTQ + 120
ICCAUXQ + 40
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XA7S15
ICCINTQ + 120
ICCAUXQ + 40
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XA7S25
ICCINTQ + 120
ICCAUXQ + 40
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XA7S50
ICCINTQ + 120
ICCAUXQ + 40
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XA7S75
ICCINTQ + 300
ICCAUXQ + 140
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
XA7S100
ICCINTQ + 300
ICCAUXQ + 140
ICCOQ + 40 mA per bank
ICCBRAMQ + 60
mA
Device
Table 7: Power Supply Ramp Time
Symbol
Description
Conditions
Min
Max
Units
TVCCINT
Ramp time from GND to 90% of VCCINT.
0.2
50
ms
TVCCO
Ramp time from GND to 90% of VCCO.
0.2
50
ms
TVCCAUX
Ramp time from GND to 90% of VCCAUX.
0.2
50
ms
TVCCBRAM
Ramp time from GND to 90% of VCCBRAM.
TVCCO2VCCAUX
0.2
50
ms
TJ =
125°C(1)
–
300
ms
Allowed time per power cycle for VCCO – VCCAUX > 2.625V. TJ =
100°C(1)
–
500
ms
85°C(1)
–
800
ms
TJ =
Notes:
1.
Based on 240,000 power cycles with a nominal VCCO of 3.3V or 36,500 power cycles with a worst case VCCO of 3.465V.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
DC Input and Output Levels
Values for VIL and VIH are recommended input voltages. Values for IOL and IOH are guaranteed over the
recommended operating conditions at the VOL and V OH test points. Only selected standards are tested.
These are chosen to ensure that all standards meet their specifications. The selected standards are tested
at a minimum V CCO with the respective VOL and VOH voltage levels shown. Other standards are sample
tested.
Table 8: SelectIO DC Input and Output Levels(1)(2)(3)
I/O Standard
VIL
V, Min
VIH
V, Max
V, Min
V, Max
VOL
VOH
V, Max
V, Min
IOL
IOH
mA, Max mA, Min
HSTL_I
–0.300 VREF – 0.100 VREF + 0.100 VCCO + 0.300
0.400
VCCO – 0.400
8.00
–8.00
HSTL_I_18
–0.300 VREF – 0.100 VREF + 0.100 VCCO + 0.300
0.400
VCCO – 0.400
8.00
–8.00
HSTL_II
–0.300 VREF – 0.100 VREF + 0.100 VCCO + 0.300
0.400
VCCO – 0.400
16.00
–16.00
HSTL_II_18
–0.300 VREF – 0.100 VREF + 0.100 VCCO + 0.300
0.400
VCCO – 0.400
16.00
–16.00
HSUL_12
–0.300 VREF – 0.130 VREF + 0.130 VCCO + 0.300
20% VCCO
80% VCCO
0.10
–0.10
LVCMOS12
–0.300
35% VCCO
65% VCCO
VCCO + 0.300
0.400
VCCO – 0.400
Note 4
Note 4
LVCMOS15
–0.300
35% VCCO
65% VCCO
VCCO + 0.300
25% VCCO
75% VCCO
Note 5
Note 5
LVCMOS18
–0.300
35% VCCO
65% VCCO
VCCO + 0.300
0.450
VCCO – 0.450
Note 6
Note 6
LVCMOS25
–0.300
0.7
1.700
VCCO + 0.300
0.400
VCCO – 0.400
Note 5
Note 5
LVCMOS33
–0.300
0.8
2.000
3.450
0.400
VCCO – 0.400
Note 5
Note 5
LVTTL
–0.300
0.8
2.000
3.450
0.400
2.400
Note 6
Note 6
MOBILE_DDR
–0.300
20% VCCO
80% VCCO
VCCO + 0.300
10% VCCO
90% VCCO
0.10
–0.10
PCI33_3
–0.400
30% VCCO
50% VCCO
VCCO + 0.500
10% VCCO
90% VCCO
1.50
–0.50
SSTL135
–0.300 VREF – 0.090 VREF + 0.090 VCCO + 0.300 VCCO/2 – 0.150 VCCO/2 + 0.150
13.00
–13.00
SSTL135_R
–0.300 VREF – 0.090 VREF + 0.090 VCCO + 0.300 VCCO/2 – 0.150 VCCO/2 + 0.150
8.90
–8.90
SSTL15
–0.300 VREF – 0.100 VREF + 0.100 VCCO + 0.300 VCCO/2 – 0.175 VCCO/2 + 0.175
13.00
–13.00
SSTL15_R
–0.300 VREF – 0.100 VREF + 0.100 VCCO + 0.300 VCCO/2 – 0.175 VCCO/2 + 0.175
8.90
–8.90
SSTL18_I
–0.300 VREF – 0.125 VREF + 0.125 VCCO + 0.300 VCCO/2 – 0.470 VCCO/2 + 0.470
8.00
–8.00
SSTL18_II
–0.300 VREF – 0.125 VREF + 0.125 VCCO + 0.300 VCCO/2 – 0.600 VCCO/2 + 0.600
13.40
–13.40
Notes:
1.
2.
3.
4.
5.
6.
Tested according to relevant specifications.
3.3V and 2.5V standards are only supported in HR I/O banks.
For detailed interface specific DC voltage levels, see the 7 Series FPGAs SelectIO Resources User Guide (UG471) [Ref 3].
Supported drive strengths of 4, 8, or 12 mA in HR I/O banks.
Supported drive strengths of 4, 8, 12, or 16 mA in HR I/O banks.
Supported drive strengths of 4, 8, 12, 16, or 24 mA in HR I/O banks.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 9: Differential SelectIO DC Input and Output Levels
VICM(1)
I/O Standard
V,
Typ
V,
Max
V,
Min
VOCM(3)
VOD(4)
V,
Typ
V,
Max
V,
Min
V,
Typ
V,
Max
–
–
–
1.250
–
Note 5
MINI_LVDS_25 0.300 1.200 VCCAUX 0.200 0.400 0.600
1.000
1.200
1.400
0.300 0.450 0.600
PPDS_25
0.200 0.900 VCCAUX 0.100 0.250 0.400
0.500
0.950
1.400
0.100 0.250 0.400
RSDS_25
0.300 0.900 1.500 0.100 0.350 0.600
1.000
1.200
1.400
0.100 0.350 0.600
TMDS_33
2.700 2.965 3.230 0.150 0.675 1.200 VCCO – 0.405 VCCO – 0.300 VCCO – 0.190 0.400 0.600 0.800
BLVDS_25
V,
Min
VID(2)
0.300 1.200 1.425 0.100
V,
Min
V,
Typ
V,
Max
Notes:
1.
2.
3.
4.
5.
VICM is the input common mode voltage.
VID is the input differential voltage (Q – Q).
VOCM is the output common mode voltage.
VOD is the output differential voltage (Q – Q).
VOD for BLVDS will vary significantly depending on topology and loading.
Table 10: Complementary Differential SelectIO DC Input and Output Levels
VOL(3)
VOH(4)
V, Min V, Typ V, Max V, Min V, Max
V, Max
V, Min
DIFF_HSTL_I
0.300
0.750
1.125
0.100
–
0.400
VCCO – 0.400
8.00
–8.00
DIFF_HSTL_I_18
0.300
0.900
1.425
0.100
–
0.400
VCCO – 0.400
8.00
–8.00
DIFF_HSTL_II
0.300
0.750
1.125
0.100
–
0.400
VCCO – 0.400
16.00
–16.00
DIFF_HSTL_II_18
0.300
0.900
1.425
0.100
–
0.400
VCCO – 0.400
16.00
–16.00
DIFF_HSUL_12
0.300
0.600
0.850
0.100
–
20% VCCO
80% VCCO
0.100
–0.100
DIFF_MOBILE_DDR
0.300
0.900
1.425
0.100
–
10% VCCO
90% VCCO
0.100
–0.100
DIFF_SSTL135
0.300
0.675
1.000
0.100
–
(VCCO/2) – 0.150 (VCCO/2) + 0.150
13.0
–13.0
DIFF_SSTL135_R
0.300
0.675
1.000
0.100
–
(VCCO/2) – 0.150 (VCCO/2) + 0.150
8.9
–8.9
DIFF_SSTL15
0.300
0.750
1.125
0.100
–
(VCCO/2) – 0.175 (VCCO/2) + 0.175
13.0
–13.0
DIFF_SSTL15_R
0.300
0.750
1.125
0.100
–
(VCCO/2) – 0.175 (VCCO/2) + 0.175
8.9
–8.9
DIFF_SSTL18_I
0.300
0.900
1.425
0.100
–
(VCCO/2) – 0.470 (VCCO/2) + 0.470
8.00
–8.00
DIFF_SSTL18_II
0.300
0.900
1.425
0.100
–
(VCCO/2) – 0.600 (VCCO/2) + 0.600
13.4
–13.4
I/O Standard
VICM(1)
VID(2)
IOL
IOH
mA, Max mA, Min
Notes:
1.
2.
3.
4.
VICM is the input common mode voltage.
VID is the input differential voltage (Q – Q).
VOL is the single-ended low-output voltage.
VOH is the single-ended high-output voltage.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
LVDS DC Specifications (LVDS_25)
Table 11: LVDS_25 DC Specifications(1)
Symbol
DC Parameter
Conditions
Min
Typ
Max
Units
2.375
2.500
2.625
V
VCCO
Supply voltage.
VOH
Output High voltage for Q and Q. RT = 100Ω across Q and Q signals.
–
–
1.675
V
VOL
Output Low voltage for Q and Q. RT = 100Ω across Q and Q signals.
0.700
–
–
V
RT = 100Ω across Q and Q signals.
247
350
600
mV
RT = 100Ω across Q and Q signals.
1.000
1.250
1.425
V
100
350
600
mV
0.300
1.200
1.500
V
Differential output voltage:
VODIFF
(Q – Q), Q = High
(Q – Q), Q = High
VOCM
Output common-mode voltage.
Differential input voltage:
VIDIFF
(Q – Q), Q = High
(Q – Q), Q = High
VICM
Input common-mode voltage.
Notes:
1.
Differential inputs for LVDS_25 can be placed in banks with VCCO levels that are different from the required level for outputs. Consult the
7 Series FPGAs SelectIO Resources User Guide (UG471) [Ref 3] for more information.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
AC Switching Characteristics
All values represented in this data sheet are based on the speed specifications from the Vivado® Design
Suite as outlined in Table 12.
Table 12: Speed Specification Version By Device
2018.2.1
Device
1.23
XC7S6, XC7S15, XC7S25, XC7S50, XC7S75, XC7S100
1.16
XA7S6, XA7S15, XA7S25, XA7S50, XA7S75, XA7S100
Switching characteristics are specified on a per-speed-grade basis and can be designated as Advance,
Preliminary, or Production. Each designation is defined as follows.
Advance Product Specification
These specifications are based on simulations only and are typically available soon after device design
specifications are frozen. Although speed grades with this designation are considered relatively stable and
conservative, some under-reporting might still occur.
Preliminary Product Specification
These specifications are based on complete ES (engineering sample) silicon characterization. Devices and
speed grades with this designation are intended to give a better indication of the expected performance
of production silicon. The probability of under-reporting delays is greatly reduced as compared to
Advance data.
Production Product Specification
These specifications are released once enough production silicon of a particular device family member has
been characterized to provide full correlation between specifications and devices over numerous
production lots. There is no under-reporting of delays, and customers receive formal notification of any
subsequent changes. Typically, the slowest speed grades transition to Production before faster speed
grades.
Testing of AC Switching Characteristics
Internal timing parameters are derived from measuring internal test patterns. All AC switching
characteristics are representative of worst-case supply voltage and junction temperature conditions.
For more specific, more precise, and worst-case guaranteed data, use the values reported by the static
timing analyzer and back-annotate to the simulation net list. Unless otherwise noted, values apply to all
Spartan-7 FPGAs.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Speed Grade Designations
Since individual family members are produced at different times, the migration from one category to
another depends completely on the status of the fabrication process for each device. Table 13 correlates
the current status of each Spartan-7 device on a per speed grade basis.
Table 13: Spartan-7 Device Speed Grade Designations
Device
Speed Grade, Temperature Range, and VCCINT Operating Voltage
Advance
Preliminary
Production
XC7S6
-2C (1.0V), -2I (1.0V), -1C (1.0V),
-1I (1.0V), -1Q (1.0V), and -1LI (0.95V)(1)
XC7S15
-2C (1.0V), -2I (1.0V), -1C (1.0V),
-1I (1.0V), -1Q (1.0V), and -1LI (0.95V)(1)
XC7S25
-2C (1.0V), -2I (1.0V), -1C (1.0V),
-1I (1.0V), -1Q (1.0V), and -1LI (0.95V)(1)
XC7S50
-2C (1.0V), -2I (1.0V), -1C (1.0V),
-1I (1.0V), -1Q (1.0V), and -1LI (0.95V)(1)
XC7S75
-2C (1.0V), -2I (1.0V), -1C (1.0V),
-1I (1.0V), -1Q (1.0V), and -1LI (0.95V)(1)
XC7S100
-2C (1.0V), -2I (1.0V), -1C (1.0V),
-1I (1.0V), -1Q (1.0V), and -1LI (0.95V)(1)
XA7S6
-2I (1.0V), -1I (1.0V), -1Q (1.0V)
XA7S15
-2I (1.0V), -1I (1.0V), -1Q (1.0V)
XA7S25
-2I (1.0V), -1I (1.0V), -1Q (1.0V)
XA7S50
-2I (1.0V), -1I (1.0V), -1Q (1.0V)
XA7S75
-2I (1.0V), -1I (1.0V), -1Q (1.0V)
XA7S100
-2I (1.0V), -1I (1.0V), -1Q (1.0V)
Notes:
1.
The lowest power -1LI devices, where VCCINT = 0.95V, are listed in the Vivado Design Suite as -1IL.
Production Silicon and Software Status
In some cases, a particular family member (and speed grade) is released to production before a speed
specification is released with the correct label (Advance, Preliminary, Production). Any labeling
discrepancies are corrected in subsequent speed specification releases.
Table 14 lists the production released Spartan-7 device, speed grade, and the minimum corresponding
supported speed specification version and software revisions. The software and speed specifications
listed are the minimum releases required for production. All subsequent releases of software and speed
specifications are valid.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 14: Spartan-7 Device Production Software and Speed Specification Release
VCCINT Operating Voltage, Speed Grade, and Temperature Range
1.0V
Device
-2C
-2I
0.95V
-1C
-1I
-1Q
-1LI
XC7S6
Vivado tools 2018.2 v1.22
Vivado tools
2018.2.1 v1.23
Vivado tools
2018.2 v1.22
XC7S15
Vivado tools 2018.2 v1.22
Vivado tools
2018.2.1 v1.23
Vivado tools
2018.2 v1.22
XC7S25
Vivado tools 2017.4 v1.20
Vivado tools
2018.1 v1.21
Vivado tools
2017.4 v1.20
XC7S50
Vivado tools 2017.2 v1.17
Vivado tools
2017.3 v1.19
Vivado tools
2017.2 v1.17
XC7S75
Vivado tools 2018.1 v1.21
Vivado tools
2018.2.1 v1.23
Vivado tools
2018.1 v1.21
XC7S100
Vivado tools 2018.1 v1.21
Vivado tools
2018.2.1 v1.23
Vivado tools
2018.1 v1.21
XA7S6
N/A
Vivado tools
2018.2.1 v1.16
N/A
Vivado tools 2018.2.1 v1.16
N/A
XA7S15
N/A
Vivado tools
2018.2.1 v1.16
N/A
Vivado tools 2018.2.1 v1.16
N/A
XA7S25
N/A
Vivado tools
2018.1 v1.15
N/A
Vivado tools 2018.1 v1.15
N/A
XA7S50
N/A
Vivado tools
2017.3 v1.12
N/A
Vivado tools 2017.3 v1.12
N/A
XA7S75
N/A
Vivado tools
2018.2.1 v1.16
N/A
Vivado tools 2018.2.1 v1.16
N/A
XA7S100
N/A
Vivado tools
2018.2.1 v1.16
N/A
Vivado tools 2018.2.1 v1.16
N/A
Performance Characteristics
This section provides the performance characteristics of some common functions and designs
implemented in Spartan-7 FPGAs. These values are subject to the same guidelines as the AC Switching
Characteristics, page 12.
Table 15: Networking Applications Interface Performances
VCCINT Operating Voltage, Speed
Grade, and Temperature Range
Description
1.0V
SDR LVDS transmitter (using OSERDES; DATA_WIDTH = 4 to 8)
DDR LVDS transmitter (using OSERDES; DATA_WIDTH = 4 to 14)
SDR LVDS
receiver(1)
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0.95V
Units
-2C/-2I
-1C/-1I/-1Q
-1LI
680
600
600
Mb/s
1250
950
950
Mb/s
680
600
600
Mb/s
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 15: Networking Applications Interface Performances (Cont’d)
VCCINT Operating Voltage, Speed
Grade, and Temperature Range
Description
1.0V
DDR LVDS receiver(1)
0.95V
-2C/-2I
-1C/-1I/-1Q
-1LI
1250
950
950
Units
Mb/s
Notes:
1.
LVDS receivers are typically bounded with certain applications where specific dynamic phase-alignment (DPA) algorithms dominate
deterministic performance.
Table 16: Maximum Physical Interface (PHY) Rate for Memory Interface IP available with the Memory Interface
Generator(1)
VCCINT Operating Voltage, Speed Grade,
and Temperature Range
Memory Standard
1.0V
0.95V
Units
-2C/-2I
-1C/-1I/-1Q
-1LI
DDR3
800(2)
667
667
Mb/s
DDR3L
800(2)
667
667
Mb/s
DDR2
800(2)
667
667
Mb/s
DDR3
800(2)
667
667
Mb/s
DDR3L
800(2)
667
667
Mb/s
DDR2
800(2)
667
667
Mb/s
667
533
533
Mb/s
4:1 Memory Controllers
2:1 Memory Controllers
LPDDR2
Notes:
1.
2.
VREF tracking is required. For more information, see the Zynq-7000 SoC and 7 Series Devices Memory Interface Solutions User Guide (UG586)
[Ref 7].
The maximum PHY rate is 667 Mb/s in the FTGB196 package.
IOB Pad Input/Output/3-State
Table 17 summarizes the values of standard-specific data input delay adjustments, output delays
terminating at pads (based on standard) and 3-state delays.
•
TIOPI is described as the delay from IOB pad through the input buffer to the I-pin of an IOB pad. The
delay varies depending on the capability of the SelectIO input buffer.
•
TIOOP is described as the delay from the O pin to the IOB pad through the output buffer of an IOB
pad. The delay varies depending on the capability of the SelectIO output buffer.
•
TIOTP is described as the delay from the T pin to the IOB pad through the output buffer of an IOB pad,
when 3-state is disabled. The delay varies depending on the SelectIO capability of the output buffer.
In HR I/O banks, the IN_TERM termination turn-on time is always faster than TIOTP when the
INTERMDISABLE pin is used.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 17: IOB High Range (HR) Switching Characteristics
TIOOP
TIOPI
TIOTP
VCCINT Operating Voltage and Speed Grade
I/O Standard
1.0V
0.95V
1.0V
0.95V
1.0V
0.95V
Units
-2
-1
-1L
-2
-1
-1L
-2
-1
-1L
LVTTL_S4
1.34
1.41
1.41
3.93
4.18
4.18
3.96
4.20
4.20
ns
LVTTL_S8
1.34
1.41
1.41
3.66
3.92
3.92
3.69
3.93
3.93
ns
LVTTL_S12
1.34
1.41
1.41
3.65
3.90
3.90
3.68
3.91
3.91
ns
LVTTL_S16
1.34
1.41
1.41
3.19
3.45
3.45
3.22
3.46
3.46
ns
LVTTL_S24
1.34
1.41
1.41
3.41
3.67
3.67
3.44
3.68
3.68
ns
LVTTL_F4
1.34
1.41
1.41
3.38
3.64
3.64
3.41
3.65
3.65
ns
LVTTL_F8
1.34
1.41
1.41
2.87
3.12
3.12
2.90
3.13
3.13
ns
LVTTL_F12
1.34
1.41
1.41
2.85
3.10
3.10
2.88
3.12
3.12
ns
LVTTL_F16
1.34
1.41
1.41
2.68
2.93
2.93
2.71
2.95
2.95
ns
LVTTL_F24
1.34
1.41
1.41
2.65
2.90
2.90
2.68
2.91
2.91
ns
LVDS_25
0.81
0.88
0.88
1.41
1.67
1.67
1.44
1.68
1.68
ns
MINI_LVDS_25
0.81
0.88
0.88
1.40
1.65
1.65
1.43
1.66
1.66
ns
BLVDS_25
0.81
0.88
0.88
1.96
2.21
2.21
1.99
2.23
2.23
ns
RSDS_25 (point to point)
0.81
0.88
0.88
1.40
1.65
1.65
1.43
1.66
1.66
ns
PPDS_25
0.81
0.88
0.88
1.41
1.67
1.67
1.44
1.68
1.68
ns
TMDS_33
0.81
0.88
0.88
1.54
1.79
1.79
1.57
1.80
1.80
ns
PCI33_3
1.32
1.39
1.39
3.22
3.48
3.48
3.25
3.49
3.49
ns
HSUL_12_S
0.75
0.82
0.82
1.93
2.18
2.18
1.96
2.20
2.20
ns
HSUL_12_F
0.75
0.82
0.82
1.41
1.67
1.67
1.44
1.68
1.68
ns
DIFF_HSUL_12_S
0.76
0.83
0.83
1.93
2.18
2.18
1.96
2.20
2.20
ns
DIFF_HSUL_12_F
0.76
0.83
0.83
1.41
1.67
1.67
1.44
1.68
1.68
ns
MOBILE_DDR_S
0.84
0.91
0.91
1.80
2.06
2.06
1.83
2.07
2.07
ns
MOBILE_DDR_F
0.84
0.91
0.91
1.51
1.76
1.76
1.54
1.77
1.77
ns
DIFF_MOBILE_DDR_S
0.78
0.85
0.85
1.82
2.07
2.07
1.85
2.09
2.09
ns
DIFF_MOBILE_DDR_F
0.78
0.85
0.85
1.57
1.82
1.82
1.60
1.84
1.84
ns
HSTL_I_S
0.75
0.82
0.82
1.74
1.99
1.99
1.77
2.01
2.01
ns
HSTL_II_S
0.73
0.80
0.80
1.54
1.79
1.79
1.57
1.80
1.80
ns
HSTL_I_18_S
0.75
0.82
0.82
1.41
1.67
1.67
1.44
1.68
1.68
ns
HSTL_II_18_S
0.75
0.81
0.81
1.54
1.79
1.79
1.57
1.80
1.80
ns
DIFF_HSTL_I_S
0.76
0.83
0.83
1.71
1.96
1.96
1.74
1.98
1.98
ns
DIFF_HSTL_II_S
0.76
0.83
0.83
1.63
1.88
1.88
1.66
1.90
1.90
ns
DIFF_HSTL_I_18_S
0.79
0.86
0.86
1.51
1.76
1.76
1.54
1.77
1.77
ns
DIFF_HSTL_II_18_S
0.78
0.85
0.85
1.58
1.84
1.84
1.61
1.85
1.85
ns
HSTL_I_F
0.75
0.82
0.82
1.22
1.48
1.48
1.25
1.49
1.49
ns
HSTL_II_F
0.73
0.80
0.80
1.24
1.49
1.49
1.27
1.51
1.51
ns
HSTL_I_18_F
0.75
0.82
0.82
1.26
1.51
1.51
1.29
1.52
1.52
ns
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 17: IOB High Range (HR) Switching Characteristics (Cont’d)
TIOPI
TIOOP
TIOTP
VCCINT Operating Voltage and Speed Grade
I/O Standard
1.0V
0.95V
1.0V
0.95V
1.0V
0.95V
Units
-2
-1
-1L
-2
-1
-1L
-2
-1
-1L
HSTL_II_18_F
0.75
0.81
0.81
1.24
1.49
1.49
1.27
1.51
1.51
ns
DIFF_HSTL_I_F
0.76
0.83
0.83
1.30
1.56
1.56
1.33
1.57
1.57
ns
DIFF_HSTL_II_F
0.76
0.83
0.83
1.33
1.59
1.59
1.36
1.60
1.60
ns
DIFF_HSTL_I_18_F
0.79
0.86
0.86
1.33
1.59
1.59
1.36
1.60
1.60
ns
DIFF_HSTL_II_18_F
0.78
0.85
0.85
1.33
1.59
1.59
1.36
1.60
1.60
ns
LVCMOS33_S4
1.34
1.41
1.41
3.93
4.18
4.18
3.96
4.20
4.20
ns
LVCMOS33_S8
1.34
1.41
1.41
3.65
3.90
3.90
3.68
3.91
3.91
ns
LVCMOS33_S12
1.34
1.41
1.41
3.21
3.46
3.46
3.24
3.48
3.48
ns
LVCMOS33_S16
1.34
1.41
1.41
3.52
3.77
3.77
3.55
3.79
3.79
ns
LVCMOS33_F4
1.34
1.41
1.41
3.38
3.64
3.64
3.41
3.65
3.65
ns
LVCMOS33_F8
1.34
1.41
1.41
2.87
3.12
3.12
2.90
3.13
3.13
ns
LVCMOS33_F12
1.34
1.41
1.41
2.68
2.93
2.93
2.71
2.95
2.95
ns
LVCMOS33_F16
1.34
1.41
1.41
2.68
2.93
2.93
2.71
2.95
2.95
ns
LVCMOS25_S4
1.20
1.27
1.27
3.26
3.51
3.51
3.29
3.52
3.52
ns
LVCMOS25_S8
1.20
1.27
1.27
3.01
3.26
3.26
3.04
3.27
3.27
ns
LVCMOS25_S12
1.20
1.27
1.27
2.60
2.85
2.85
2.63
2.87
2.87
ns
LVCMOS25_S16
1.20
1.27
1.27
2.94
3.20
3.20
2.97
3.21
3.21
ns
LVCMOS25_F4
1.20
1.27
1.27
2.87
3.12
3.12
2.90
3.13
3.13
ns
LVCMOS25_F8
1.20
1.27
1.27
2.30
2.56
2.56
2.33
2.57
2.57
ns
LVCMOS25_F12
1.20
1.27
1.27
2.29
2.54
2.54
2.32
2.55
2.55
ns
LVCMOS25_F16
1.20
1.27
1.27
2.13
2.39
2.39
2.16
2.40
2.40
ns
LVCMOS18_S4
0.83
0.89
0.89
1.74
1.99
1.99
1.77
2.01
2.01
ns
LVCMOS18_S8
0.83
0.89
0.89
2.30
2.56
2.56
2.33
2.57
2.57
ns
LVCMOS18_S12
0.83
0.89
0.89
2.30
2.56
2.56
2.33
2.57
2.57
ns
LVCMOS18_S16
0.83
0.89
0.89
1.65
1.90
1.90
1.68
1.91
1.91
ns
LVCMOS18_S24
0.83
0.89
0.89
1.72
1.98
1.98
1.75
1.99
1.99
ns
LVCMOS18_F4
0.83
0.89
0.89
1.57
1.82
1.82
1.60
1.84
1.84
ns
LVCMOS18_F8
0.83
0.89
0.89
1.80
2.06
2.06
1.83
2.07
2.07
ns
LVCMOS18_F12
0.83
0.89
0.89
1.80
2.06
2.06
1.83
2.07
2.07
ns
LVCMOS18_F16
0.83
0.89
0.89
1.52
1.77
1.77
1.55
1.79
1.79
ns
LVCMOS18_F24
0.83
0.89
0.89
1.46
1.71
1.71
1.49
1.73
1.73
ns
LVCMOS15_S4
0.86
0.93
0.93
2.18
2.43
2.43
2.21
2.45
2.45
ns
LVCMOS15_S8
0.86
0.93
0.93
2.21
2.46
2.46
2.24
2.48
2.48
ns
LVCMOS15_S12
0.86
0.93
0.93
1.71
1.96
1.96
1.74
1.98
1.98
ns
LVCMOS15_S16
0.86
0.93
0.93
1.71
1.96
1.96
1.74
1.98
1.98
ns
LVCMOS15_F4
0.86
0.93
0.93
1.97
2.23
2.23
2.00
2.24
2.24
ns
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 17: IOB High Range (HR) Switching Characteristics (Cont’d)
TIOPI
TIOOP
TIOTP
VCCINT Operating Voltage and Speed Grade
I/O Standard
1.0V
0.95V
1.0V
0.95V
1.0V
0.95V
Units
-2
-1
-1L
-2
-1
-1L
-2
-1
-1L
LVCMOS15_F8
0.86
0.93
0.93
1.72
1.98
1.98
1.75
1.99
1.99
ns
LVCMOS15_F12
0.86
0.93
0.93
1.47
1.73
1.73
1.50
1.74
1.74
ns
LVCMOS15_F16
0.86
0.93
0.93
1.46
1.71
1.71
1.49
1.73
1.73
ns
LVCMOS12_S4
0.95
1.02
1.02
2.69
2.95
2.95
2.72
2.96
2.96
ns
LVCMOS12_S8
0.95
1.02
1.02
2.21
2.46
2.46
2.24
2.48
2.48
ns
LVCMOS12_S12
0.95
1.02
1.02
1.91
2.17
2.17
1.94
2.18
2.18
ns
LVCMOS12_F4
0.95
1.02
1.02
2.10
2.35
2.35
2.13
2.37
2.37
ns
LVCMOS12_F8
0.95
1.02
1.02
1.66
1.92
1.92
1.69
1.93
1.93
ns
LVCMOS12_F12
0.95
1.02
1.02
1.51
1.76
1.76
1.54
1.77
1.77
ns
SSTL135_S
0.75
0.82
0.82
1.47
1.73
1.73
1.50
1.74
1.74
ns
SSTL15_S
0.68
0.75
0.75
1.43
1.68
1.68
1.46
1.69
1.69
ns
SSTL18_I_S
0.75
0.82
0.82
1.79
2.04
2.04
1.82
2.06
2.06
ns
SSTL18_II_S
0.75
0.82
0.82
1.43
1.68
1.68
1.46
1.70
1.70
ns
DIFF_SSTL135_S
0.76
0.83
0.83
1.47
1.73
1.73
1.50
1.74
1.74
ns
DIFF_SSTL15_S
0.76
0.83
0.83
1.43
1.68
1.68
1.46
1.69
1.69
ns
DIFF_SSTL18_I_S
0.79
0.86
0.86
1.80
2.06
2.06
1.83
2.07
2.07
ns
DIFF_SSTL18_II_S
0.79
0.86
0.86
1.51
1.76
1.76
1.54
1.77
1.77
ns
SSTL135_F
0.75
0.82
0.82
1.24
1.49
1.49
1.27
1.51
1.51
ns
SSTL15_F
0.68
0.75
0.75
1.19
1.45
1.45
1.22
1.46
1.46
ns
SSTL18_I_F
0.75
0.82
0.82
1.24
1.49
1.49
1.27
1.51
1.51
ns
SSTL18_II_F
0.75
0.82
0.82
1.24
1.49
1.49
1.27
1.51
1.51
ns
DIFF_SSTL135_F
0.76
0.83
0.83
1.24
1.49
1.49
1.27
1.51
1.51
ns
DIFF_SSTL15_F
0.76
0.83
0.83
1.19
1.45
1.45
1.22
1.46
1.46
ns
DIFF_SSTL18_I_F
0.79
0.86
0.86
1.35
1.60
1.60
1.38
1.62
1.62
ns
DIFF_SSTL18_II_F
0.79
0.86
0.86
1.33
1.59
1.59
1.36
1.60
1.60
ns
Table 18 specifies the values of T IOTPHZ and TIOIBUFDISABLE . TIOTPHZ is described as the delay from the T pin
to the IOB pad through the output buffer of an IOB pad, when 3-state is enabled (i.e., a high impedance
state). TIOIBUFDISABLE is described as the IOB delay from IBUFDISABLE to O output. In HR I/O banks, the
internal IN_TERM termination turn-off time is always faster than TIOTPHZ when the INTERMDISABLE pin is
used.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 18: IOB 3-state Output Switching Characteristics
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
Units
TIOTPHZ
T input to pad high-impedance.
2.19
2.37
2.37
ns
TIOIBUFDISABLE
IBUF turn-on time from IBUFDISABLE to O output.
2.30
2.60
2.60
ns
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
I/O Standard Adjustment Measurement Methodology
Input Delay Measurements
Table 19 shows the test setup parameters used for measuring input delay.
Table 19: Input Delay Measurement Methodology
Description
I/O Standard Attribute
VL(1)
VH(1)
VMEAS(3)(5)
VREF(2)(4)
LVCMOS, 1.2V
LVCMOS12
0.1
1.1
0.6
–
LVCMOS, 1.5V
LVCMOS15
0.1
1.4
0.75
–
LVCMOS, 1.8V
LVCMOS18
0.1
1.7
0.9
–
LVCMOS, 2.5V
LVCMOS25
0.1
2.4
1.25
–
LVCMOS, 3.3V
LVCMOS33
0.1
3.2
1.65
–
LVTTL, 3.3V
LVTTL
0.1
3.2
1.65
–
MOBILE_DDR, 1.8V
MOBILE_DDR
0.1
1.7
0.9
–
PCI33, 3.3V
PCI33_3
0.1
3.2
1.65
–
VREF – 0.5
VREF + 0.5
VREF
0.60
VREF – 0.65
VREF + 0.65
VREF
0.75
HSTL (high-speed transceiver
HSTL_I_12
logic), Class I, 1.2V
HSTL, Class I & II, 1.5V
HSTL_I, HSTL_II
HSTL, Class I & II, 1.8V
HSTL_I_18,
HSTL_II_18
VREF – 0.8
VREF + 0.8
VREF
0.90
HSUL (high-speed
unterminated logic), 1.2V
HSUL_12
VREF – 0.5
VREF + 0.5
VREF
0.60
SSTL (stub-terminated
transceiver logic), 1.2V
SSTL12
VREF – 0.5
VREF + 0.5
VREF
0.60
SSTL, 1.35V
SSTL135, SSTL135_R
VREF – 0.575
VREF + 0.575
VREF
0.675
SSTL, 1.5V
SSTL15, SSTL15_R
VREF – 0.65
VREF + 0.65
VREF
0.75
SSTL, Class I & II, 1.8V
SSTL18_I, SSTL18_II
VREF – 0.8
VREF + 0.8
VREF
0.90
DIFF_MOBILE_DDR, 1.8V
DIFF_MOBILE_DDR
0.9 – 0.125
0.9 + 0.125
0(5)
–
DIFF_HSTL, Class I, 1.2V
DIFF_HSTL_I_12
0.6 – 0.125
0.6 + 0.125
0(5)
–
DIFF_HSTL, Class I & II,1.5V
DIFF_HSTL_I,
DIFF_HSTL_II
0.75 – 0.125
0.75 + 0.125
0(5)
–
DIFF_HSTL, Class I & II, 1.8V
DIFF_HSTL_I_18,
DIFF_HSTL_II_18
0.9 – 0.125
0.9 + 0.125
0(5)
–
DIFF_HSUL, 1.2V
DIFF_HSUL_12
0.6 – 0.125
0.6 + 0.125
0(5)
–
DIFF_SSTL135/
DIFF_SSTL135_R, 1.35V
DIFF_SSTL135,
DIFF_SSTL135_R
0(5)
–
DIFF_SSTL15/
DIFF_SSTL15_R, 1.5V
DIFF_SSTL15,
DIFF_SSTL15_R
0.75 – 0.125
0.75 + 0.125
0(5)
–
DIFF_SSTL18_I/
DIFF_SSTL18_II, 1.8V
DIFF_SSTL18_I,
DIFF_SSTL18_II
0.9 – 0.125
0.9 + 0.125
0(5)
–
LVDS_25, 2.5V
LVDS_25
1.2 – 0.125
1.2 + 0.125
0(5)
–
BLVDS_25, 2.5V
BLVDS_25
1.25 – 0.125
1.25 + 0.125
0(5)
–
MINI_LVDS_25, 2.5V
MINI_LVDS_25
1.25 – 0.125
1.25 + 0.125
0(5)
–
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 19: Input Delay Measurement Methodology (Cont’d)
Description
I/O Standard Attribute
VL(1)
VH(1)
VMEAS(3)(5)
VREF(2)(4)
PPDS_25
PPDS_25
1.25 – 0.125
1.25 + 0.125
0(5)
–
RSDS_25
RSDS_25
1.25 – 0.125
1.25 + 0.125
0(5)
–
TMDS_33
TMDS_33
3 – 0.125
3 + 0.125
0(5)
–
Notes:
1.
2.
3.
4.
5.
Input waveform switches between VL and VH.
Measurements are made at typical, minimum, and maximum VREF values. Reported delays reflect worst case of these measurements. VREF
values listed are typical.
Input voltage level from which measurement starts.
This is an input voltage reference that bears no relation to the VREF / VMEAS parameters found in IBIS models and/or noted in Figure 1.
The value given is the differential input voltage.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Output Delay Measurements
Output delays are measured with short output traces. Standard termination was used for all testing. The
propagation delay of the trace is characterized separately and subtracted from the final measurement, and
is therefore not included in the generalized test setups shown in Figure 1 and Figure 2.
X-Ref Target - Figure 1
VREF
RREF
Output
VMEAS (voltage level when taking delay measurement)
CREF (probe capacitance)
X16654-092616
Figure 1: Single-ended Test Setup
X-Ref Target - Figure 2
Output
+
CREF
RREF
VMEAS
–
X16640-092616
Figure 2: Differential Test Setup
Parameters V REF, R REF, C REF, and VMEAS fully describe the test conditions for each I/O standard. The most
accurate prediction of propagation delay in any given application can be obtained through IBIS
simulation, using this method:
1. Simulate the output driver of choice into the generalized test setup using values from Table 20.
2. Record the time to V MEAS.
3. Simulate the output driver of choice into the actual PCB trace and load using the appropriate IBIS
model or capacitance value to represent the load.
4. Record the time to V MEAS.
5. Compare the results of step 2 and step 4. The increase or decrease in delay yields the actual
propagation delay of the PCB trace.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 20: Output Delay Measurement Methodology
Description
I/O Standard Attribute
RREF
(Ω)
CREF(1) VMEAS
(pF)
(V)
VREF
(V)
LVCMOS, 1.2V
LVCMOS12
1M
0
0.6
0
LVCMOS, 1.5V
LVCMOS15
1M
0
0.75
0
LVCMOS, 1.8V
LVCMOS18
1M
0
0.9
0
LVCMOS, 2.5V
LVCMOS25
1M
0
1.25
0
LVCMOS, 3.3V
LVCMOS33
1M
0
1.65
0
LVTTL, 3.3V
LVTTL
1M
0
1.65
0
PCI33, 3.3V
PCI33_3
25
10
1.65
0
HSTL (high-speed transceiver logic), Class I, 1.2V HSTL_I_12
50
0
VREF
0.6
HSTL, Class I, 1.5V
HSTL_I
50
0
VREF
0.75
HSTL, Class II, 1.5V
HSTL_II
25
0
VREF
0.75
HSTL, Class I, 1.8V
HSTL_I_18
50
0
VREF
0.9
HSTL, Class II, 1.8V
HSTL_II_18
25
0
VREF
0.9
HSUL (high-speed unterminated logic), 1.2V
HSUL_12
50
0
VREF
0.6
SSTL12, 1.2V
SSTL12
50
0
VREF
0.6
SSTL135/SSTL135_R, 1.35V
SSTL135, SSTL135_R
50
0
VREF
0.675
SSTL15/SSTL15_R, 1.5V
SSTL15, SSTL15_R
50
0
VREF
0.75
SSTL (stub-series terminated logic),
Class I & Class II, 1.8V
SSTL18_I, SSTL18_II
50
0
VREF
0.9
DIFF_MOBILE_DDR, 1.8V
DIFF_MOBILE_DDR
50
0
VREF
0.9
DIFF_HSTL, Class I, 1.2V
DIFF_HSTL_I_12
50
0
VREF
0.6
DIFF_HSTL, Class I & II, 1.5V
DIFF_HSTL_I, DIFF_HSTL_II
50
0
VREF
0.75
DIFF_HSTL, Class I & II, 1.8V
DIFF_HSTL_I_18,
DIFF_HSTL_II_18
50
0
VREF
0.9
DIFF_HSUL_12, 1.2V
DIFF_HSUL_12
50
0
VREF
0.6
DIFF_SSTL135/DIFF_SSTL135_R, 1.35V
DIFF_SSTL135,
DIFF_SSTL135_R
50
0
VREF
0.675
DIFF_SSTL15/DIFF_SSTL15_R, 1.5V
DIFF_SSTL15, DIFF_SSTL15_R
50
0
VREF
0.75
DIFF_SSTL18, Class I & II, 1.8V
DIFF_SSTL18_I,
DIFF_SSTL18_II
50
0
VREF
0.9
LVDS, 2.5V
LVDS_25
100
0
0(2)
0
BLVDS (Bus LVDS), 2.5V
BLVDS_25
100
0
0(2)
0
Mini LVDS, 2.5V
MINI_LVDS_25
100
0
0(2)
0
0
0(2)
0
0
0(2)
0
0
0(2)
3.3
PPDS_25
RSDS_25
TMDS_33
PPDS_25
RSDS_25
TMDS_33
100
100
50
Notes:
1.
2.
CREF is the capacitance of the probe, nominally 0 pF.
The value given is the differential output voltage.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Input/Output Logic Switching Characteristics
Table 21: ILOGIC Switching Characteristics
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
1.0V
-2
0.95V
-1
Units
-1L
Setup/Hold
TICE1CK/TICKCE1
CE1 pin setup/hold with respect to CLK.
0.54/0.02 0.76/0.02 0.76/0.02
ns
TISRCK/TICKSR
SR pin setup/hold with respect to CLK.
0.70/0.01 1.13/0.01 1.13/0.01
ns
TIDOCK/TIOCKD
D pin setup/hold with respect to CLK without
delay.
0.01/0.29 0.01/0.33 0.01/0.33
ns
TIDOCKD/TIOCKDD
DDLY pin setup/hold with respect to CLK (using
IDELAY).
0.02/0.29 0.02/0.33 0.02/0.33
ns
Combinatorial
TIDI
D pin to O pin propagation delay, no delay.
0.11
0.13
0.13
ns
TIDID
DDLY pin to O pin propagation delay (using
IDELAY).
0.12
0.14
0.14
ns
TIDLO
D pin to Q1 pin using flip-flop as a latch without
delay.
0.44
0.51
0.51
ns
TIDLOD
DDLY pin to Q1 pin using flip-flop as a latch (using
IDELAY).
0.44
0.51
0.51
ns
TICKQ
CLK to Q outputs.
0.57
0.66
0.66
ns
TRQ_ILOGIC
SR pin to OQ/TQ out.
1.08
1.32
1.32
ns
TGSRQ_ILOGIC
Global set/reset to Q outputs.
7.60
10.51
10.51
ns
Minimum pulse width, SR inputs.
0.72
0.72
0.72
ns, Min
Sequential Delays
Set/Reset
TRPW_ILOGIC
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 22: OLOGIC Switching Characteristics
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
-2
0.95V
-1
Units
-1L
Setup/Hold
TODCK/TOCKD
D1/D2 pins setup/hold with respect to CLK.
0.71/–0.11 0.84/–0.11 0.84/–0.11
ns
TOOCECK/TOCKOCE OCE pin setup/hold with respect to CLK.
0.34/0.58
0.51/0.58
0.51/0.58
ns
TOSRCK/TOCKSR
SR pin setup/hold with respect to CLK.
0.44/0.21
0.80/0.21
0.80/0.21
ns
TOTCK/TOCKT
T1/T2 pins setup/hold with respect to CLK.
TOTCECK/TOCKTCE
TCE pin setup/hold with respect to CLK.
0.73/–0.14 0.89/–0.14 0.89/–0.14
ns
0.34/0.01
0.51/0.01
0.51/0.01
ns
D1 to OQ out or T1 to TQ out.
0.96
1.16
1.16
ns
TOCKQ
CLK to OQ/TQ out.
0.49
0.56
0.56
ns
TRQ_OLOGIC
SR pin to OQ/TQ out.
0.80
0.95
0.95
ns
TGSRQ_OLOGIC
Global set/reset to Q outputs.
7.60
10.51
10.51
ns
Minimum pulse width, SR inputs.
0.74
0.74
0.74
ns, Min
Combinatorial
TODQ
Sequential Delays
Set/Reset
TRPW_OLOGIC
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Input Serializer/Deserializer Switching Characteristics
Table 23: ISERDES Switching Characteristics
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
0.02/0.15
0.02/0.17
0.02/0.17
Units
Setup/Hold for Control Lines
TISCCK_BITSLIP/
TISCKC_BITSLIP
BITSLIP pin setup/hold with respect to
CLKDIV.
TISCCK_CE/
TISCKC_CE
CE pin setup/hold with respect to CLK
(for CE1).
0.50/–0.01 0.72/–0.01 0.72/–0.01
ns
TISCCK_CE2/
TISCKC_CE2
CE pin setup/hold with respect to CLKDIV
(for CE2).
–0.10/0.36 –0.10/0.40 –0.10/0.40
ns
ns
Setup/Hold for Data Lines
TISDCK_D/
TISCKD_D
D pin setup/hold with respect to CLK.
–0.02/0.14 –0.02/0.17 –0.02/0.17
ns
TISDCK_DDLY/
TISCKD_DDLY
DDLY pin setup/hold with respect to CLK
(using IDELAY).(1)
–0.02/0.14 –0.02/0.17 –0.02/0.17
ns
TISDCK_D_DDR/
TISCKD_D_DDR
D pin setup/hold with respect to CLK at
DDR mode.
–0.02/0.14 –0.02/0.17 –0.02/0.17
ns
TISDCK_DDLY_DDR/ D pin setup/hold with respect to CLK at
TISCKD_DDLY_DDR DDR mode (using IDELAY).(1)
0.14/0.14
0.17/0.17
0.17/0.17
ns
CLKDIV to out at Q pin.
0.54
0.66
0.66
ns
D input to DO output pin.
0.11
0.13
0.13
ns
Sequential Delays
TISCKO_Q
Propagation Delays
TISDO_DO
Notes:
1.
Recorded at 0 tap value.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Output Serializer/Deserializer Switching Characteristics
Table 24: OSERDES Switching Characteristics
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
0.45/0.03
0.63/0.03
0.63/0.03
Units
Setup/Hold
TOSDCK_D/
TOSCKD_D
D input setup/hold with respect to CLKDIV.
TOSDCK_T/
TOSCKD_T
T input setup/hold with respect to CLK.
0.73/–0.13 0.88/–0.13 0.88/–0.13
ns
TOSDCK_T2/
TOSCKD_T2
T input setup/hold with respect to CLKDIV.
0.34/–0.13 0.39/–0.13 0.39/–0.13
ns
TOSCCK_OCE/
OCE input setup/hold with respect to CLK.
TOSCKC_OCE
TOSCCK_S
SR (reset) input setup with respect to CLKDIV.
TOSCCK_TCE/
TOSCKC_TCE
TCE input setup/hold with respect to CLK.
ns
0.34/0.58
0.51/0.58
0.51/0.58
ns
0.52
0.85
0.85
ns
0.34/0.01
0.51/0.01
0.51/0.01
ns
Sequential Delays
TOSCKO_OQ
Clock to out from CLK to OQ.
0.42
0.48
0.48
ns
TOSCKO_TQ
Clock to out from CLK to TQ.
0.49
0.56
0.56
ns
T input to TQ out.
0.92
1.11
1.11
ns
Combinatorial
TOSDO_TTQ
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Input/Output Delay Switching Characteristics
Table 25: Input/Output Delay Switching Characteristics
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
Units
IDELAYCTRL
TDLYCCO_RDY
FIDELAYCTRL_REF
Reset to ready for IDELAYCTRL.
3.67
3.67
3.67
µs
Attribute REFCLK frequency =
200.00.(1)
200.00
200.00
200.00
MHz
Attribute REFCLK frequency =
300.00.(1)
300.00
300.00
300.00
MHz
Attribute REFCLK frequency = 400.00.(1)
400.00
N/A
N/A
MHz
±10
±10
±10
MHz
59.28
59.28
59.28
ns
IDELAYCTRL_REF_
REFCLK precision
PRECISION
TIDELAYCTRL_RPW
Minimum reset pulse width.
IDELAY
TIDELAYRESOLUTION
TIDELAYPAT_JIT
IDELAY chain delay resolution.
1/(32 x 2 x FREF)
µs
Pattern dependent period jitter in delay chain for
clock pattern.(2)
0
0
0
ps
per tap
Pattern dependent period jitter in delay chain for
random data pattern (PRBS 23).(3)
±5
±5
±5
ps
per tap
Pattern dependent period jitter in delay chain for
random data pattern (PRBS 23).(4)
±9
±9
±9
ps
per tap
680.00
600.00
600.00
MHz
TIDELAY_CLK_MAX
Maximum frequency of CLK input to IDELAY.
TIDCCK_CE /
TIDCKC_CE
CE pin setup/hold with respect to C for IDELAY.
0.16/0.13 0.21/0.16 0.21/0.16
ns
TIDCCK_INC/
TIDCKC_INC
INC pin setup/hold with respect to C for IDELAY. 0.14/0.18 0.16/0.22 0.16/0.22
ns
TIDCCK_RST/
TIDCKC_RST
RST pin setup/hold with respect to C for IDELAY. 0.16/0.11 0.18/0.14 0.18/0.14
ns
TIDDO_IDATAIN
Propagation delay through IDELAY.
ps
Note 5
Note 5
Note 5
Notes:
1.
2.
3.
4.
5.
Average tap delay at 200 MHz = 78 ps, at 300 MHz = 52 ps, and at 400 MHz = 39 ps.
When HIGH_PERFORMANCE mode is set to TRUE or FALSE.
When HIGH_PERFORMANCE mode is set to TRUE.
When HIGH_PERFORMANCE mode is set to FALSE.
Delay depends on IDELAY tap setting. See the timing report for actual values.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 26: IO_FIFO Switching Characteristics
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
Units
IO_FIFO Clock to Out Delays
TOFFCKO_DO
RDCLK to Q outputs.
0.60
0.68
0.68
ns
TCKO_FLAGS
Clock to IO_FIFO flags.
0.61
0.77
0.77
ns
0.51/0.02
0.58/0.02
0.58/0.02
ns
Setup/Hold
TCCK_D/TCKC_D
D inputs to WRCLK.
TIFFCCK_WREN/
TIFFCKC_WREN
WREN to WRCLK.
TOFFCCK_RDEN/
TOFFCKC_RDEN
RDEN to RDCLK.
0.47/–0.01 0.53/–0.01 0.53/–0.01
ns
0.58/0.02
0.66/0.02
0.66/0.02
ns
Minimum Pulse Width
TPWH_IO_FIFO
RESET, RDCLK, WRCLK.
2.15
2.15
2.15
ns
TPWL_IO_FIFO
RESET, RDCLK, WRCLK.
2.15
2.15
2.15
ns
200.00
200.00
200.00
MHz
Maximum Frequency
FMAX
RDCLK and WRCLK.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
CLB Switching Characteristics
Table 27: CLB Switching Characteristics
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
Units
Combinatorial Delays
TILO
An – Dn LUT address to A.
0.11
0.13
0.13
ns, Max
TILO_2
An – Dn LUT address to AMUX/CMUX.
0.30
0.36
0.36
ns, Max
TILO_3
An – Dn LUT address to BMUX_A.
0.46
0.55
0.55
ns, Max
TITO
An – Dn inputs to A – D Q outputs.
1.05
1.27
1.27
ns, Max
TAXA
AX inputs to AMUX output.
0.69
0.84
0.84
ns, Max
TAXB
AX inputs to BMUX output.
0.66
0.83
0.83
ns, Max
TAXC
AX inputs to CMUX output.
0.68
0.82
0.82
ns, Max
TAXD
AX inputs to DMUX output.
0.75
0.90
0.90
ns, Max
TBXB
BX inputs to BMUX output.
0.57
0.69
0.69
ns, Max
TBXD
BX inputs to DMUX output.
0.69
0.82
0.82
ns, Max
TCXC
CX inputs to CMUX output.
0.48
0.58
0.58
ns, Max
TCXD
CX inputs to DMUX output.
0.59
0.71
0.71
ns, Max
TDXD
DX inputs to DMUX output.
0.58
0.70
0.70
ns, Max
Sequential Delays
TCKO
Clock to AQ – DQ outputs.
0.44
0.53
0.53
ns, Max
TSHCKO
Clock to AMUX – DMUX outputs.
0.53
0.66
0.66
ns, Max
AN – DN input to CLK on A – D flip-flops.
0.09/0.14
0.11/0.18
0.11/0.18
ns, Min
AX – DX input to CLK on A – D flip-flops.
0.07/0.21
0.09/0.26
0.09/0.26
ns, Min
AX – DX input through MUXs and/or carry logic to
CLK on A – D flip-flops.
0.66/0.09
0.81/0.11
0.81/0.11
ns, Min
TCECK_CLB/
TCKCE_CLB
CE input to CLK on A – D flip-flops.
0.17/0.00
0.21/0.01
0.21/0.01
ns, Min
TSRCK/TCKSR
SR input to CLK on A – D flip-flops.
0.43/0.04
0.53/0.05
0.53/0.05
ns, Min
Setup and Hold Times of CLB Flip-Flops Before/After Clock CLK
TAS/TAH
TDICK/TCKDI
Set/Reset
TSRMIN
SR input minimum pulse width.
0.78
1.04
1.04
ns, Min
TRQ
Delay from SR input to AQ – DQ flip-flops.
0.59
0.71
0.71
ns, Max
TCEO
Delay from CE input to AQ – DQ flip-flops.
0.58
0.70
0.70
ns, Max
FTOG
Toggle frequency (for export control).
1286
1098
1098
MHz
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
CLB Distributed RAM Switching Characteristics (SLICEM Only)
Table 28: CLB Distributed RAM Switching Characteristics
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
Units
Sequential Delays
TSHCKO
Clock to A – B outputs.
1.09
1.32
1.32
ns, Max
TSHCKO_1
Clock to AMUX – BMUX outputs.
1.53
1.86
1.86
ns, Max
Setup and Hold Times Before/After Clock CLK
TDS_LRAM/TDH_LRAM
A – D inputs to CLK.
0.60/0.30 0.72/0.35 0.72/0.35 ns, Min
Address An inputs to clock.
0.30/0.60 0.37/0.70 0.37/0.70 ns, Min
TAS_LRAM/TAH_LRAM
Address An inputs through MUXs and/or
carry logic to clock.
0.77/0.21 0.94/0.26 0.94/0.26 ns, Min
TWS_LRAM/TWH_LRAM
WE input to clock.
0.43/0.12 0.53/0.17 0.53/0.17 ns, Min
TCECK_LRAM/TCKCE_LRAM CE input to CLK.
0.44/0.11 0.53/0.17 0.53/0.17 ns, Min
Clock CLK
TMPW_LRAM
Minimum pulse width.
1.13
1.25
1.25
ns, Min
TMCP
Minimum clock period.
2.26
2.50
2.50
ns, Min
Notes:
1.
TSHCKO also represents the CLK to XMUX output. Refer to the timing report for the CLK to XMUX path.
CLB Shift Register Switching Characteristics (SLICEM Only)
Table 29: CLB Shift Register Switching Characteristics
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
Units
Sequential Delays
TREG
Clock to A – D outputs.
1.33
1.61
1.61
ns, Max
TREG_MUX
Clock to AMUX – DMUX output.
1.77
2.15
2.15
ns, Max
TREG_M31
Clock to DMUX output via M31 output.
1.23
1.46
1.46
ns, Max
Setup and Hold Times Before/After Clock CLK
TWS_SHFREG/ TWH_SHFREG
WE input.
0.41/0.12 0.51/0.17 0.51/0.17 ns, Min
TCECK_SHFREG/
TCKCE_SHFREG
CE input to CLK.
0.42/0.11 0.52/0.17 0.52/0.17 ns, Min
TDS_SHFREG/ TDH_SHFREG
A – D inputs to CLK.
0.37/0.37 0.44/0.43 0.44/0.43 ns, Min
Clock CLK
TMPW_SHFREG
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0.98
0.98
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31
Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Block RAM and FIFO Switching Characteristics
Table 30: Block RAM and FIFO Switching Characteristics
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
0.95V
Units
-2
-1
-1L
Clock CLK to DOUT output (without
output register).(1)(2)
2.13
2.46
2.46
ns, Max
Clock CLK to DOUT output (with output
register).(3)(4)
0.74
0.89
0.89
ns, Max
Clock CLK to DOUT output with ECC
(without output register).(1)(2)
3.04
3.84
3.84
ns, Max
Clock CLK to DOUT output with ECC
(with output register).(3)(4)
0.81
0.94
0.94
ns, Max
2.88
3.30
3.30
ns, Max
1.28
1.46
1.46
ns, Max
Block RAM and FIFO Clock-to-Out Delays
TRCKO_DO and
TRCKO_DO_REG
TRCKO_DO_ECC and
TRCKO_DO_ECC_REG
Clock CLK to DOUT output with cascade
(1)
and (without output register).
TRCKO_DO_CASCOUT
TRCKO_DO_CASCOUT_REG Clock CLK to DOUT output with cascade
(with output register).(3)
TRCKO_FLAGS
Clock CLK to FIFO flags outputs.(5)
0.87
1.05
1.05
ns, Max
TRCKO_POINTERS
Clock CLK to FIFO pointers outputs.(6)
1.02
1.15
1.15
ns, Max
TRCKO_PARITY_ECC
Clock CLK to ECCPARITY in ECC encode
only mode.
0.85
0.94
0.94
ns, Max
Clock CLK to BITERR (without output
register).
2.81
3.55
3.55
ns, Max
Clock CLK to BITERR (with output
register).
0.76
0.89
0.89
ns, Max
0.88
1.07
1.07
ns, Max
0.93
1.08
1.08
ns, Max
TRCKO_SDBIT_ECC and
TRCKO_SDBIT_ECC_REG
Clock CLK to RDADDR output with ECC
TRCKO_RDADDR_ECC and (without output register).
TRCKO_RDADDR_ECC_REG Clock CLK to RDADDR output with ECC
(with output register).
Setup and Hold Times Before/After Clock CLK
TRCCK_ADDRA/
TRCKC_ADDRA
ADDR inputs.(7)
0.49/0.33
0.57/0.36
0.57/0.36
ns, Min
TRDCK_DI_WF_NC/
TRCKD_DI_WF_NC
Data input setup/hold time when block
RAM is configured in WRITE_FIRST or
NO_CHANGE mode.(8)
0.65/0.63
0.74/0.67
0.74/0.67
ns, Min
TRDCK_DI_RF/
TRCKD_DI_RF
Data input setup/hold time when block
RAM is configured in READ_FIRST
mode.(8)
0.22/0.34
0.25/0.41
0.25/0.41
ns, Min
TRDCK_DI_ECC/
TRCKD_DI_ECC
DIN inputs with block RAM ECC in
standard mode.(8)
0.55/0.46
0.63/0.50
0.63/0.50
ns, Min
TRDCK_DI_ECCW/
TRCKD_DI_ECCW
DIN inputs with block RAM ECC encode
only.(8)
1.02/0.46
1.17/0.50
1.17/0.50
ns, Min
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 30: Block RAM and FIFO Switching Characteristics (Cont’d)
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
Units
TRDCK_DI_ECC_FIFO/
TRCKD_DI_ECC_FIFO
DIN inputs with FIFO ECC in standard
mode.(8)
1.15/0.59
1.32/0.64
1.32/0.64
ns, Min
TRCCK_INJECTBITERR/
TRCKC_INJECTBITERR
Inject single/double bit error in ECC
mode.
0.64/0.37
0.74/0.40
0.74/0.40
ns, Min
TRCCK_EN/TRCKC_EN
Block RAM enable (EN) input.
0.39/0.21
0.45/0.23
0.45/0.23
ns, Min
TRCCK_REGCE/
TRCKC_REGCE
CE input of output register.
0.29/0.15
0.36/0.16
0.36/0.16
ns, Min
TRCCK_RSTREG/
TRCKC_RSTREG
Synchronous RSTREG input.
0.32/0.07
0.35/0.07
0.35/0.07
ns, Min
TRCCK_RSTRAM/
TRCKC_RSTRAM
Synchronous RSTRAM input.
0.34/0.43
0.36/0.46
0.36/0.46
ns, Min
TRCCK_WEA/TRCKC_WEA
Write enable (WE) input (block RAM
only).
0.48/0.19
0.54/0.20
0.54/0.20
ns, Min
TRCCK_WREN/
TRCKC_WREN
WREN FIFO inputs.
0.46/0.35
0.47/0.43
0.47/0.43
ns, Min
TRCCK_RDEN/
TRCKC_RDEN
RDEN FIFO inputs.
0.43/0.35
0.43/0.43
0.43/0.43
ns, Min
0.98
1.10
1.10
ns, Max
Reset Delays
TRCO_FLAGS
Reset RST to FIFO flags/pointers.(9)
TRREC_RST/TRREM_RST
FIFO reset recovery and removal
timing.(10)
2.07/–0.81 2.37/–0.81 2.37/–0.81 ns, Max
Maximum Frequency
FMAX_BRAM_WF_NC
FMAX_BRAM_RF_
PERFORMANCE
FMAX_BRAM_RF_
DELAYED_WRITE
FMAX_CAS_WF_NC
FMAX_CAS_RF_
PERFORMANCE
Block RAM (write first and no change
modes) when not in SDP RF mode.
460.83
388.20
388.20
MHz
Block RAM (read first, performance
mode) when in SDP RF mode but no
address overlap between port A and
port B.
460.83
388.20
388.20
MHz
Block RAM (read first, delayed write
mode) when in SDP RF mode and there
is possibility of overlap between port A
and port B addresses.
404.53
339.67
339.67
MHz
Block RAM cascade (write first, no
change mode) when cascade but not in
RF mode.
418.59
345.78
345.78
MHz
Block RAM cascade (read first,
performance mode) when in cascade
with RF mode and no possibility of
address overlap/one port is disabled.
418.59
345.78
345.78
MHz
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 30: Block RAM and FIFO Switching Characteristics (Cont’d)
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
0.95V
Units
-2
-1
-1L
When in cascade RF mode and there is a
possibility of address overlap between
port A and port B.
362.19
297.35
297.35
MHz
FMAX_FIFO
FIFO in all modes without ECC.
460.83
388.20
388.20
MHz
FMAX_ECC
Block RAM and FIFO in ECC
configuration.
365.10
297.53
297.53
MHz
FMAX_CAS_RF_
DELAYED_WRITE
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
TRCKO_DOR includes TRCKO_DOW, TRCKO_DOPR, and TRCKO_DOPW as well as the B port equivalent timing parameters.
These parameters also apply to synchronous FIFO with DO_REG = 0.
TRCKO_DO includes TRCKO_DOP as well as the B port equivalent timing parameters.
These parameters also apply to multi-rate (asynchronous) and synchronous FIFO with DO_REG = 1.
TRCKO_FLAGS includes the following parameters: TRCKO_AEMPTY, TRCKO_AFULL, TRCKO_EMPTY, TRCKO_FULL, TRCKO_RDERR, TRCKO_WRERR.
TRCKO_POINTERS includes both TRCKO_RDCOUNT and TRCKO_WRCOUNT.
The ADDR setup and hold must be met when EN is asserted (even when WE is deasserted). Otherwise, block RAM data corruption is possible.
These parameters include both A and B inputs as well as the parity inputs of A and B.
TRCO_FLAGS includes the following flags: AEMPTY, AFULL, EMPTY, FULL, RDERR, WRERR, RDCOUNT, and WRCOUNT.
RDEN and WREN must be held Low prior to and during reset. The FIFO reset must be asserted for at least five positive clock edges of the
slowest clock (WRCLK or RDCLK).
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
DSP48E1 Switching Characteristics
Table 31: DSP48E1 Switching Characteristics
Symbol
Description
VCCINT Operating
Voltage and Speed
Grade
1.0V
Units
0.95V
-2
-1
-1L
Setup and Hold Times of Data/Control Pins to the Input Register Clock
TDSPDCK_A_AREG/
TDSPCKD_A_AREG
A input to A register CLK.
0.30/
0.13
0.37/
0.14
0.37/
0.14
ns
TDSPDCK_B_BREG/
TDSPCKD_B_BREG
B input to B register CLK.
0.38/
0.16
0.45/
0.18
0.45/
0.18
ns
TDSPDCK_C_CREG/
TDSPCKD_C_CREG
C input to C register CLK.
0.20/
0.19
0.24/
0.21
0.24/
0.21
ns
TDSPDCK_D_DREG/
TDSPCKD_D_DREG
D input to D register CLK.
0.32/
0.27
0.42/
0.27
0.42/
0.27
ns
TDSPDCK_ACIN_AREG/
TDSPCKD_ACIN_AREG
ACIN input to A register CLK.
0.27/
0.13
0.32/
0.14
0.32/
0.14
ns
TDSPDCK_BCIN_BREG/
TDSPCKD_BCIN_BREG
BCIN input to B register CLK.
0.29/
0.16
0.36/
0.18
0.36/
0.18
ns
Setup and Hold Times of Data Pins to the Pipeline Register Clock
TDSPDCK_{A, B}_MREG_MULT/
TDSPCKD_{A, B}_MREG_MULT
{A, B} input to M register CLK using
multiplier.
2.76/
–0.01
3.29/
–0.01
3.29/
–0.01
ns
TDSPDCK_{A, D}_ADREG/
TDSPCKD_{A, D}_ADREG
{A, D} input to AD register CLK.
1.48/
–0.02
1.76/
–0.02
1.76/
–0.02
ns
Setup and Hold Times of Data/Control Pins to the Output Register Clock
TDSPDCK_{A, B}_PREG_MULT/
TDSPCKD_{A, B} _PREG_MULT
{A, B} input to P register CLK using
multiplier.
4.60/
–0.28
5.48/
–0.28
5.48/
–0.28
ns
TDSPDCK_D_PREG_MULT/
TDSPCKD_D_PREG_MULT
D input to P register CLK using multiplier.
4.50/
–0.73
5.35/
–0.73
5.35/
–0.73
ns
TDSPDCK_{A, B} _PREG/
TDSPCKD_{A, B} _PREG
A or B input to P register CLK not using
multiplier.
1.98/
–0.28
2.35/
–0.28
2.35/
–0.28
ns
TDSPDCK_C_PREG/
TDSPCKD_C_PREG
C input to P register CLK not using multiplier.
1.76/
–0.26
2.10/
–0.26
2.10/
–0.26
ns
TDSPDCK_PCIN_PREG/
TDSPCKD_PCIN_PREG
PCIN input to P register CLK.
1.51/
–0.15
1.80/
–0.15
1.80/
–0.15
ns
TDSPDCK_{CEA;CEB}_{AREG;BREG}/
TDSPCKD_{CEA;CEB}_{AREG;BREG}
{CEA; CEB} input to {A; B} register CLK.
0.42/
0.08
0.52/
0.11
0.52/
0.11
ns
TDSPDCK_CEC_CREG/
TDSPCKD_CEC_CREG
CEC input to C register CLK.
0.34/
0.11
0.42/
0.13
0.42/
0.13
ns
TDSPDCK_CED_DREG/
TDSPCKD_CED_DREG
CED input to D register CLK.
0.43/
–0.03
0.52/
–0.03
0.52/
–0.03
ns
Setup and Hold Times of the CE Pins
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 31: DSP48E1 Switching Characteristics (Cont’d)
Symbol
Description
VCCINT Operating
Voltage and Speed
Grade
1.0V
Units
0.95V
-2
-1
-1L
TDSPDCK_CEM_MREG/
TDSPCKD_CEM_MREG
CEM input to M register CLK.
0.21/
0.20
0.27/
0.23
0.27/
0.23
ns
TDSPDCK_CEP_PREG/
TDSPCKD_CEP_PREG
CEP input to P register CLK.
0.43/
0.01
0.53/
0.01
0.53/
0.01
ns
TDSPDCK_{RSTA; RSTB}_{AREG; BREG}/
{RSTA, RSTB} input to {A, B} register CLK.
TDSPCKD_{RSTA; RSTB}_{AREG; BREG}
0.46/
0.13
0.55/
0.15
0.55/
0.15
ns
TDSPDCK_RSTC_CREG/
TDSPCKD_RSTC_CREG
RSTC input to C register CLK.
0.08/
0.11
0.09/
0.12
0.09/
0.12
ns
TDSPDCK_RSTD_DREG/
TDSPCKD_RSTD_DREG
RSTD input to D register CLK
0.50/
0.08
0.59/
0.09
0.59/
0.09
ns
TDSPDCK_RSTM_MREG/
TDSPCKD_RSTM_MREG
RSTM input to M register CLK
0.23/
0.24
0.27/
0.28
0.27/
0.28
ns
TDSPDCK_RSTP_PREG/
TDSPCKD_RSTP_PREG
RSTP input to P register CLK
0.30/
0.01
0.35/
0.01
0.35/
0.01
ns
Setup and Hold Times of the RST Pins
Combinatorial Delays from Input Pins to Output Pins
TDSPDO_A_CARRYOUT_MULT
A input to CARRYOUT output using multiplier.
4.35
5.18
5.18
ns
TDSPDO_D_P_MULT
D input to P output using multiplier.
4.26
5.07
5.07
ns
TDSPDO_B_P
B input to P output not using multiplier.
1.75
2.08
2.08
ns
TDSPDO_C_P
C input to P output.
1.53
1.82
1.82
ns
Combinatorial Delays from Input Pins to Cascading Output Pins
TDSPDO_{A; B}_{ACOUT; BCOUT}
{A, B} input to {ACOUT, BCOUT} output.
0.63
0.74
0.74
ns
TDSPDO_{A, B}_CARRYCASCOUT_MULT
{A, B} input to CARRYCASCOUT output using
multiplier.
4.65
5.54
5.54
ns
TDSPDO_D_CARRYCASCOUT_MULT
D input to CARRYCASCOUT output using
multiplier.
4.54
5.40
5.40
ns
TDSPDO_{A, B}_CARRYCASCOUT
{A, B} input to CARRYCASCOUT output not
using multiplier.
2.03
2.41
2.41
ns
TDSPDO_C_CARRYCASCOUT
C input to CARRYCASCOUT output.
1.81
2.15
2.15
ns
Combinatorial Delays from Cascading Input Pins to All Output Pins
TDSPDO_ACIN_P_MULT
ACIN input to P output using multiplier.
4.19
5.00
5.00
ns
TDSPDO_ACIN_P
ACIN input to P output not using multiplier.
1.57
1.88
1.88
ns
TDSPDO_ACIN_ACOUT
ACIN input to ACOUT output.
0.44
0.53
0.53
ns
TDSPDO_ACIN_CARRYCASCOUT_MULT
ACIN input to CARRYCASCOUT output using
multiplier.
4.47
5.33
5.33
ns
TDSPDO_ACIN_CARRYCASCOUT
ACIN input to CARRYCASCOUT output not
using multiplier.
1.85
2.21
2.21
ns
TDSPDO_PCIN_P
PCIN input to P output.
1.28
1.52
1.52
ns
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 31: DSP48E1 Switching Characteristics (Cont’d)
Symbol
Description
VCCINT Operating
Voltage and Speed
Grade
1.0V
TDSPDO_PCIN_CARRYCASCOUT
PCIN input to CARRYCASCOUT output.
Units
0.95V
-2
-1
-1L
1.56
1.85
1.85
ns
Clock to Outs from Output Register Clock to Output Pins
TDSPCKO_P_PREG
CLK PREG to P output.
0.37
0.44
0.44
ns
TDSPCKO_CARRYCASCOUT_PREG
CLK PREG to CARRYCASCOUT output.
0.59
0.69
0.69
ns
Clock to Outs from Pipeline Register Clock to Output Pins
TDSPCKO_P_MREG
CLK MREG to P output.
1.93
2.31
2.31
ns
TDSPCKO_CARRYCASCOUT_MREG
CLK MREG to CARRYCASCOUT output.
2.21
2.64
2.64
ns
TDSPCKO_P_ADREG_MULT
CLK ADREG to P output using multiplier.
3.10
3.69
3.69
ns
TDSPCKO_CARRYCASCOUT_ADREG_MULT
CLK ADREG to CARRYCASCOUT output using
multiplier.
3.38
4.02
4.02
ns
Clock to Outs from Input Register Clock to Output Pins
TDSPCKO_P_AREG_MULT
CLK AREG to P output using multiplier.
4.51
5.37
5.37
ns
TDSPCKO_P_BREG
CLK BREG to P output not using multiplier.
1.87
2.22
2.22
ns
TDSPCKO_P_CREG
CLK CREG to P output not using multiplier.
1.93
2.30
2.30
ns
TDSPCKO_P_DREG_MULT
CLK DREG to P output using multiplier.
4.48
5.32
5.32
ns
CLK (ACOUT, BCOUT) to {A,B} register
output.
0.73
0.87
0.87
ns
CLK (AREG, BREG) to CARRYCASCOUT
output using multiplier.
4.79
5.70
5.70
ns
TDSPCKO_CARRYCASCOUT_ BREG
CLK BREG to CARRYCASCOUT output not
using multiplier.
2.15
2.55
2.55
ns
TDSPCKO_CARRYCASCOUT_ DREG_MULT
CLK DREG to CARRYCASCOUT output using
multiplier.
4.76
5.65
5.65
ns
TDSPCKO_CARRYCASCOUT_ CREG
CLK CREG to CARRYCASCOUT output.
2.21
2.63
2.63
ns
Clock to Outs from Input Register Clock to Cascading Output Pins
TDSPCKO_{ACOUT; BCOUT}_
{AREG; BREG}
TDSPCKO_CARRYCASCOUT_
{AREG, BREG}_MULT
Maximum Frequency
FMAX
With all registers used.
550.66 464.25 464.25 MHz
FMAX_PATDET
With pattern detector.
465.77 392.93 392.93 MHz
FMAX_MULT_NOMREG
Two register multiply without MREG.
305.62 257.47 257.47 MHz
FMAX_MULT_NOMREG_PATDET
Two register multiply without MREG with
pattern detect.
277.62 233.92 233.92 MHz
FMAX_PREADD_MULT_NOADREG
Without ADREG.
346.26 290.44 290.44 MHz
FMAX_PREADD_MULT_NOADREG_PATDET Without ADREG with pattern detect.
346.26 290.44 290.44 MHz
FMAX_NOPIPELINEREG
Without pipeline registers (MREG, ADREG).
227.01 190.69 190.69 MHz
FMAX_NOPIPELINEREG_PATDET
Without pipeline registers (MREG, ADREG)
with pattern detect.
211.15 177.43 177.43 MHz
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Clock Buffers and Networks
Table 32: Global Clock Switching Characteristics (Including BUFGCTRL)
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
1.0V
-2
0.95V
-1
Units
-1L
TBCCCK_CE/TBCCKC_CE(1) CE pins setup/hold.
0.13/0.40 0.16/0.41 0.16/0.41
ns
TBCCCK_S/ TBCCKC_S(1)
0.13/0.40 0.16/0.41 0.16/0.41
ns
TBCCKO_O
(2)
S pins setup/hold.
BUFGCTRL delay from I0/I1 to O.
0.09
0.10
0.10
ns
628.00
464.00
464.00
MHz
Maximum Frequency
FMAX_BUFG
Global clock tree (BUFG).
Notes:
1.
2.
TBCCCK_CE and TBCCKC_CE must be satisfied to assure glitch-free operation of the global clock when switching between clocks. These
parameters do not apply to the BUFGMUX primitive that assures glitch-free operation. The other global clock setup and hold times are
optional; only needing to be satisfied if device operation requires simulation matches on a cycle-for-cycle basis when switching between
clocks.
TBGCKO_O (BUFG delay from I0 to O) values are the same as TBCCKO_O values.
Table 33: Input/Output Clock Switching Characteristics (BUFIO)
VCCINT Operating Voltage and
Speed Grade
Symbol
TBIOCKO_O
Description
Clock to out delay from I to O.
1.0V
0.95V
Units
-2
-1
-1L
1.26
1.54
1.54
ns
680.00
600.00
600.00
MHz
Maximum Frequency
FMAX_BUFIO
I/O clock tree (BUFIO).
Table 34: Regional Clock Buffer Switching Characteristics (BUFR)
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
Units
TBRCKO_O
Clock to out delay from I to O.
0.76
0.99
0.99
ns
TBRCKO_O_BYP
Clock to out delay from I to O with Divide Bypass
attribute set.
0.39
0.52
0.52
ns
TBRDO_O
Propagation delay from CLR to O.
0.85
1.09
1.09
ns
375.00
315.00
315.00
MHz
Maximum Frequency
FMAX_BUFR(1)
Regional clock tree (BUFR).
Notes:
1.
The maximum input frequency to the BUFR is the BUFIO FMAX frequency.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 35: Horizontal Clock Buffer Switching Characteristics (BUFH)
VCCINT Operating Voltage and Speed
Grade
Symbol
TBHCKO_O
Description
1.0V
Units
-2
-1
-1L
0.11
0.13
0.13
ns
0.22/0.15
0.28/0.21
0.28/0.21
ns
628.00
464.00
464.00
MHz
BUFH delay from I to O.
TBHCCK_CE/ TBHCKC_CE CE pin setup and hold.
0.95V
Maximum Frequency
FMAX_BUFH
Horizontal clock buffer (BUFH).
Table 36: Duty Cycle Distortion and Clock-Tree Skew
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
Device
1.0V
0.95V
Units
-2
-1
-1L
All
0.20
0.20
0.20
ns
XC7S6
0.05
0.06
0.06
ns
XC7S15
0.05
0.06
0.06
ns
XC7S25
0.26
0.26
0.26
ns
XC7S50
0.26
0.26
0.26
ns
XC7S75
0.33
0.36
0.36
ns
XC7S100
0.33
0.36
0.36
ns
XA7S6
0.05
0.06
N/A
ns
XA7S15
0.05
0.06
N/A
ns
XA7S25
0.26
0.26
N/A
ns
XA7S50
0.26
0.26
N/A
ns
XA7S75
0.33
0.36
N/A
ns
XA7S100
0.33
0.36
N/A
ns
TDCD_BUFIO I/O clock tree duty cycle distortion.
All
0.14
0.14
0.14
ns
TBUFIOSKEW I/O clock tree skew across one clock region.
All
0.03
0.03
0.03
ns
TDCD_BUFR
All
0.18
0.18
0.18
ns
TDCD_CLK
TCKSKEW
Global clock tree duty-cycle distortion.(1)
Global clock tree skew.(2)
Regional clock tree duty cycle distortion.
Notes:
1.
2.
These parameters represent the worst-case duty cycle distortion observable at the I/O flip flops. For all I/O standards, IBIS can be used to
calculate any additional duty cycle distortion that might be caused by asymmetrical rise/fall times.
The TCKSKEW value represents the worst-case clock-tree skew observable between sequential I/O elements. Significantly less clock-tree skew
exists for I/O registers that are close to each other and fed by the same or adjacent clock-tree branches. Use the Xilinx timing analysis tools
to evaluate clock skew specific to your application.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
MMCM Switching Characteristics
Table 37: MMCM Specification
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
Units
MMCM_FINMAX
Maximum input clock frequency.
800.00
800.00
800.00
MHz
MMCM_FINMIN
Minimum input clock frequency.
10.00
10.00
10.00
MHz
MMCM_FINJITTER
Maximum input clock period jitter.
< 20% of clock input period or 1 ns Max
MMCM_FINDUTY
Allowable input duty cycle: 10—49 MHz.
25
25
25
%
Allowable input duty cycle: 50—199
MHz.
30
30
30
%
Allowable input duty cycle: 200—399
MHz.
35
35
35
%
Allowable input duty cycle: 400—499
MHz.
40
40
40
%
Allowable input duty cycle: > 500 MHz.
45
45
45
%
MMCM_FMIN_PSCLK
Minimum dynamic phase-shift clock
frequency.
0.01
0.01
0.01
MHz
MMCM_FMAX_PSCLK
Maximum dynamic phase-shift clock
frequency.
500.00
450.00
450.00
MHz
MMCM_FVCOMIN
Minimum MMCM VCO frequency.
600.00
600.00
600.00
MHz
MMCM_FVCOMAX
Maximum MMCM VCO frequency.
1440.00
1200.00
1200.00
MHz
Low MMCM bandwidth at typical.(1)
1.00
1.00
1.00
MHz
typical.(1)
4.00
4.00
4.00
MHz
0.12
0.12
0.12
ns
MMCM_FBANDWIDTH
High MMCM bandwidth at
MMCM_TSTATPHAOFFSET
Static phase offset of the MMCM
outputs.(2)
MMCM_TOUTJITTER
MMCM output jitter.
MMCM_TOUTDUTY
MMCM output clock duty-cycle
precision.(4)
MMCM_TLOCKMAX
MMCM_FOUTMAX
Note 3
0.20
0.20
0.20
ns
MMCM maximum lock time.
100.00
100.00
100.00
µs
MMCM maximum output frequency.
800.00
800.00
800.00
MHz
4.69
4.69
4.69
MHz
frequency.(5)(6)
MMCM_FOUTMIN
MMCM minimum output
MMCM_TEXTFDVAR
External clock feedback variation.
< 20% of clock input period or 1 ns Max
MMCM_RSTMINPULSE
Minimum reset pulse width.
5.00
5.00
5.00
ns
MMCM_FPFDMAX
Maximum frequency at the phase
frequency detector.
500.00
450.00
450.00
MHz
MMCM_FPFDMIN
Minimum frequency at the phase
frequency detector.
10.00
10.00
10.00
MHz
MMCM_TFBDELAY
Maximum delay in the feedback path.
3 ns Max or one CLKIN cycle
MMCM Switching Characteristics Setup and Hold
TMMCMDCK_PSEN/
TMMCMCKD_PSEN
Setup and hold of phase-shift enable.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 37: MMCM Specification (Cont’d)
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
TMMCMDCK_PSINCDEC/
TMMCMCKD_PSINCDEC
Setup and hold of phase-shift
increment/decrement.
TMMCMCKO_PSDONE
Phase shift clock-to-out of PSDONE.
1.0V
0.95V
Units
-2
-1
-1L
1.04/0.00
1.04/0.00
1.04/0.00
ns
0.68
0.81
0.81
ns
Dynamic Reconfiguration Port (DRP) for MMCM Before and After DCLK
TMMCMDCK_DADDR/
TMMCMCKD_DADDR
DADDR setup/hold.
1.40/0.15
1.63/0.15
1.63/0.15
ns, Min
TMMCMDCK_DI/
TMMCMCKD_DI
DI setup/hold.
1.40/0.15
1.63/0.15
1.63/0.15
ns, Min
TMMCMDCK_DEN/
TMMCMCKD_DEN
DEN setup/hold.
1.97/0.00
2.29/0.00
2.29/0.00
ns, Min
TMMCMDCK_DWE/
TMMCMCKD_DWE
DWE setup/hold.
1.40/0.15
1.63/0.15
1.63/0.15
ns, Min
TMMCMCKO_DRDY
CLK to out of DRDY.
0.72
0.99
0.99
ns, Max
FDCK
DCLK frequency.
200.00
200.00
200.00
MHz, Max
Notes:
1.
2.
3.
4.
5.
6.
The MMCM does not filter typical spread-spectrum input clocks because they are usually far below the bandwidth filter frequencies.
The static offset is measured between any MMCM outputs with identical phase.
Values for this parameter are available in the Clocking Wizard [Ref 8].
Includes global clock buffer.
Calculated as FVCO/128 assuming output duty cycle is 50%.
When CLKOUT4_CASCADE = TRUE, MMCM_FOUTMIN is 0.036 MHz.
PLL Switching Characteristics
Table 38: PLL Specification
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
0.95V
-2
-1
-1L
Units
PLL_FINMAX
Maximum input clock frequency.
800.00
800.00
800.00
MHz
PLL_FINMIN
Minimum input clock frequency.
19.00
19.00
19.00
MHz
PLL_FINJITTER
Maximum input clock period jitter.
< 20% of clock input period or 1 ns Max
PLL_FINDUTY
Allowable input duty cycle: 19—49 MHz.
25
25
25
%
Allowable input duty cycle: 50—199 MHz.
30
30
30
%
Allowable input duty cycle: 200—399 MHz.
35
35
35
%
Allowable input duty cycle: 400—499 MHz.
40
40
40
%
Allowable input duty cycle: >500 MHz.
45
45
45
%
PLL_FVCOMIN
Minimum PLL VCO frequency.
800.00
800.00
800.00
MHz
PLL_FVCOMAX
Maximum PLL VCO frequency.
1866.00
1600.00
1600.00
MHz
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 38: PLL Specification
VCCINT Operating Voltage and Speed
Grade
Symbol
PLL_FBANDWIDTH
Description
1.0V
-2
-1
-1L
Low PLL bandwidth at typical.
1.00
1.00
1.00
MHz
High PLL bandwidth at typical.(1)
4.00
4.00
4.00
MHz
0.12
0.12
0.12
ns
PLL_TSTATPHAOFFSET Static phase offset of the PLL outputs.(2)
PLL_TOUTJITTER
Units
0.95V
PLL output jitter.
Note 3
PLL_TOUTDUTY
PLL output clock duty-cycle
PLL_TLOCKMAX
PLL_FOUTMAX
precision.(4)
0.20
0.20
0.20
ns
PLL maximum lock time.
100.00
100.00
100.00
µs
PLL maximum output frequency.
800.00
800.00
800.00
MHz
6.25
6.25
6.25
MHz
frequency.(5)
PLL_FOUTMIN
PLL minimum output
PLL_TEXTFDVAR
External clock feedback variation.
< 20% of clock input period or 1 ns Max
PLL_RSTMINPULSE
Minimum reset pulse width.
5.00
5.00
5.00
ns
PLL_FPFDMAX
Maximum frequency at the phase
frequency detector.
500.00
450.00
450.00
MHz
PLL_FPFDMIN
Minimum frequency at the phase frequency
detector.
19.00
19.00
19.00
MHz
PLL_TFBDELAY
Maximum delay in the feedback path.
3 ns Max or one CLKIN cycle
Dynamic Reconfiguration Port (DRP) for PLL Before and After DCLK
TPLLDCK_DADDR/
TPLLCKD_DADDR
Setup and hold of D address.
1.40/0.15
1.63/0.15
1.63/0.15
ns, Min
TPLLDCK_DI/
TPLLCKD_DI
Setup and hold of D input.
1.40/0.15
1.63/0.15
1.63/0.15
ns, Min
TPLLDCK_DEN/
TPLLCKD_DEN
Setup and hold of D enable.
1.97/0.00
2.29/0.00
2.29/0.00
ns, Min
TPLLDCK_DWE/
TPLLCKD_DWE
Setup and hold of D write enable.
1.40/0.15
1.63/0.15
1.63/0.15
ns, Min
TPLLCKO_DRDY
CLK to out of DRDY.
0.72
0.99
0.99
ns, Max
FDCK
DCLK frequency.
200.00
200.00
200.00
MHz, Max
Notes:
1.
2.
3.
4.
5.
The PLL does not filter typical spread-spectrum input clocks because they are usually far below the bandwidth filter frequencies.
The static offset is measured between any PLL outputs with identical phase.
Values for this parameter are available in the Clocking Wizard [Ref 8].
Includes global clock buffer.
Calculated as FVCO/128 assuming output duty cycle is 50%.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Device Pin-to-Pin Output Parameter Guidelines
Table 39: Clock-Capable Clock Input to Output Delay Without MMCM/PLL (Near Clock Region)(1)
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
Device
1.0V
-2
0.95V
-1
Units
-1L
SSTL15 Clock-Capable Clock Input to Output Delay using Output Flip-Flop, Fast Slew Rate, without MMCM/PLL.
TICKOF
Clock-capable clock input and OUTFF at
pins/banks closest to the BUFGs without
MMCM/PLL (near clock region).(2)
XC7S6
5.55
6.50
6.50
ns
XC7S15
5.55
6.50
6.50
ns
XC7S25
5.55
6.44
6.44
ns
XC7S50
5.71
6.62
6.62
ns
XC7S75
5.73
6.71
6.71
ns
XC7S100
5.73
6.71
6.71
ns
XA7S6
5.55
6.50
N/A
ns
XA7S15
5.55
6.50
N/A
ns
XA7S25
5.55
6.44
N/A
ns
XA7S50
5.71
6.62
N/A
ns
XA7S75
5.73
6.71
N/A
ns
XA7S100
5.73
6.71
N/A
ns
Notes:
1.
2.
This table lists representative values where one global clock input drives one vertical clock line in each accessible column, and where all
accessible IOB and CLB flip-flops are clocked by the global clock net.
Refer to the Die Level Bank Numbering Overview section of the 7 Series FPGA Packaging and Pinout Specification (UG475) [Ref 4].
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 40: Clock-Capable Clock Input to Output Delay Without MMCM/PLL (Far Clock Region)(1)
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
Device
1.0V
-2
0.95V
-1
Units
-1L
SSTL15 Clock-Capable Clock Input to Output Delay using Output Flip-Flop, Fast Slew Rate, without MMCM/PLL.
TICKOFFAR
Clock-capable clock input and OUTFF at
pins/banks farthest from the BUFGs without
MMCM/PLL (far clock region).(2)
XC7S6
5.55
6.50
6.50
ns
XC7S15
5.55
6.50
6.50
ns
XC7S25
5.55
6.44
6.44
ns
XC7S50
5.71
6.62
6.62
ns
XC7S75
6.01
7.02
7.02
ns
XC7S100
6.01
7.02
7.02
ns
XA7S6
5.55
6.50
N/A
ns
XA7S15
5.55
6.50
N/A
ns
XA7S25
5.55
6.44
N/A
ns
XA7S50
5.71
6.62
N/A
ns
XA7S75
6.01
7.02
N/A
ns
XA7S100
6.01
7.02
N/A
ns
Notes:
1.
2.
This table lists representative values where one global clock input drives one vertical clock line in each accessible column, and where all
accessible IOB and CLB flip-flops are clocked by the global clock net.
Refer to the Die Level Bank Numbering Overview section of the 7 Series FPGA Packaging and Pinout Specification (UG475) [Ref 4].
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 41: Clock-Capable Clock Input to Output Delay With MMCM(1)
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
Device
1.0V
-2
0.95V
-1
Units
-1L
SSTL15 Clock-Capable Clock Input to Output Delay using Output Flip-Flop, Fast Slew Rate, with MMCM.
TICKOFMMCMCC
Clock-capable clock input and OUTFF with
MMCM.(2)
XC7S6
1.03
1.03
1.03
ns
XC7S15
1.03
1.03
1.03
ns
XC7S25
1.00
1.00
1.00
ns
XC7S50
1.00
1.00
1.00
ns
XC7S75
1.00
1.00
1.00
ns
XC7S100
1.00
1.00
1.00
ns
XA7S6
1.03
1.03
N/A
ns
XA7S15
1.03
1.03
N/A
ns
XA7S25
1.00
1.00
N/A
ns
XA7S50
1.00
1.00
N/A
ns
XA7S75
1.00
1.00
N/A
ns
XA7S100
1.00
1.00
N/A
ns
Notes:
1.
2.
This table lists representative values where one global clock input drives one vertical clock line in each accessible column, and where all
accessible IOB and CLB flip-flops are clocked by the global clock net.
MMCM output jitter is already included in the timing calculation.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 42: Clock-Capable Clock Input to Output Delay With PLL(1)
VCCINT Operating Voltage and
Speed Grade
Symbol
Description
Device
1.0V
-2
0.95V
-1
Units
-1L
SSTL15 Clock-Capable Clock Input to Output Delay using Output Flip-Flop, Fast Slew Rate, with PLL.
TICKOFPLLCC
Clock-capable clock input and OUTFF with
PLL.(2)
XC7S6
0.85
0.85
0.85
ns
XC7S15
0.85
0.85
0.85
ns
XC7S25
0.83
0.83
0.83
ns
XC7S50
0.83
0.83
0.83
ns
XC7S75
0.83
0.83
0.83
ns
XC7S100
0.83
0.83
0.83
ns
XA7S6
0.85
0.85
N/A
ns
XA7S15
0.85
0.85
N/A
ns
XA7S25
0.83
0.83
N/A
ns
XA7S50
0.83
0.83
N/A
ns
XA7S75
0.83
0.83
N/A
ns
XA7S100
0.83
0.83
N/A
ns
Notes:
1.
2.
This table lists representative values where one global clock input drives one vertical clock line in each accessible column, and where all
accessible IOB and CLB flip-flops are clocked by the global clock net.
PLL output jitter is already included in the timing calculation.
Table 43: Pin-to-Pin, Clock-to-Out using BUFIO
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
-2
0.95V
-1
Units
-1L
SSTL15 Clock-Capable Clock Input to Output Delay using Output Flip-Flop, Fast Slew Rate, with BUFIO.
TICKOFCS
Clock to out of I/O clock.
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6.64
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Device Pin-to-Pin Input Parameter Guidelines
All devices are 100% functionally tested. Values are expressed in nanoseconds unless otherwise noted.
Table 44: Global Clock Input Setup and Hold Without MMCM/PLL with ZHOLD_DELAY on HR I/O Banks
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
Device
1.0V
-2
0.95V
-1
-1L
Units
Input Setup and Hold Time Relative to Global Clock Input Signal for SSTL15 Standard.(1)
TPSFD/
TPHFD
Full delay (legacy delay or default
XC7S6
(2)
delay) global clock input and IFF
XC7S15
without MMCM/PLL with ZHOLD_DELAY
XC7S25
on HR I/O banks.
XC7S50
2.76/–0.40
3.17/–0.40
3.17/–0.40
ns
2.76/–0.40
3.17/–0.40
3.17/–0.40
ns
2.67/–0.37
3.12/–0.37
3.12/–0.37
ns
2.66/–0.28
3.11/–0.28
3.11/–0.28
ns
XC7S75
2.91/–0.33
3.36/–0.33
3.36/–0.33
ns
XC7S100
2.91/–0.33
3.36/–0.33
3.36/–0.33
ns
XA7S6
2.76/–0.40
3.17/–0.40
N/A
ns
XA7S15
2.76/–0.40
3.17/–0.40
N/A
ns
XA7S25
2.67/–0.37
3.12/–0.37
N/A
ns
XA7S50
2.66/–0.28
3.11/–0.28
N/A
ns
XA7S75
2.91/–0.33
3.36/–0.33
N/A
ns
XA7S100
2.91/–0.33
3.36/–0.33
N/A
ns
Notes:
1.
2.
Setup and hold times are measured over worst case conditions (process, voltage, temperature). Setup time is measured relative to the global
clock input signal using the slowest process, highest temperature, and lowest voltage. Hold time is measured relative to the global clock
input signal using the fastest process, lowest temperature, and highest voltage.
IFF = Input flip-flop or latch.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 45: Clock-Capable Clock Input Setup and Hold With MMCM
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
Device
1.0V
-2
0.95V
-1
Units
-1L
Input Setup and Hold Time Relative to Global Clock Input Signal for SSTL15 Standard.(1)(2)
TPSMMCMCC/ No delay clock-capable clock input and
TPHMMCMCC IFF(3) with MMCM.
XC7S6
2.73/–0.59
3.27/–0.59
3.27/–0.59
ns
XC7S15
2.73/–0.59
3.27/–0.59
3.27/–0.59
ns
XC7S25
2.69/–0.61
3.21/–0.61
3.21/–0.61
ns
XC7S50
2.81/–0.62
3.35/–0.62
3.35/–0.62
ns
XC7S75
2.81/–0.62
3.36/–0.62
3.36/–0.62
ns
XC7S100
2.81/–0.62
3.36/–0.62
3.36/–0.62
ns
XA7S6
2.73/–0.59
3.27/–0.59
N/A
ns
XA7S15
2.73/–0.59
3.27/–0.59
N/A
ns
XA7S25
2.69/–0.61
3.21/–0.61
N/A
ns
XA7S50
2.81/–0.62
3.35/–0.62
N/A
ns
XA7S75
2.81/–0.62
3.36/–0.62
N/A
ns
XA7S100
2.81/–0.62
3.36/–0.62
N/A
ns
Notes:
1.
2.
3.
Setup and hold times are measured over worst case conditions (process, voltage, temperature). Setup time is measured relative to the global
clock input signal using the slowest process, highest temperature, and lowest voltage. Hold time is measured relative to the global clock
input signal using the fastest process, lowest temperature, and highest voltage.
Use IBIS to determine any duty-cycle distortion incurred using various standards.
IFF = Input flip-flop or latch.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 46: Clock-Capable Clock Input Setup and Hold With PLL
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
Device
1.0V
-2
0.95V
-1
Units
-1L
Input Setup and Hold Time Relative to Clock-Capable Clock Input Signal for SSTL15 Standard.(1)(2)
TPSPLLCC/
TPHPLLCC
No delay clock-capable clock input and
IFF(3) with PLL.
XC7S6
3.07/–0.17
3.69/–0.17
3.69/–0.17
ns
XC7S15
3.07/–0.17
3.69/–0.17
3.69/–0.17
ns
XC7S25
3.04/–0.19
3.64/–0.19
3.64/–0.19
ns
XC7S50
3.15/–0.19
3.77/–0.19
3.77/–0.19
ns
XC7S75
3.15/–0.19
3.78/–0.19
3.78/–0.19
ns
XC7S100
3.15/–0.19
3.78/–0.19
3.78/–0.19
ns
XA7S6
3.07/–0.17
3.69/–0.17
N/A
ns
XA7S15
3.07/–0.17
3.69/–0.17
N/A
ns
XA7S25
3.04/–0.19
3.64/–0.19
N/A
ns
XA7S50
3.15/–0.19
3.77/–0.19
N/A
ns
XA7S75
3.15/–0.19
3.78/–0.19
N/A
ns
XA7S100
3.15/–0.19
3.78/–0.19
N/A
ns
Notes:
1.
2.
3.
Setup and hold times are measured over worst case conditions (process, voltage, temperature). Setup time is measured relative to the global
clock input signal using the slowest process, highest temperature, and lowest voltage. Hold time is measured relative to the global clock input
signal using the fastest process, lowest temperature, and highest voltage.
Use IBIS to determine any duty-cycle distortion incurred using various standards.
IFF = Input flip-flop or latch.
Table 47: Data Input Setup and Hold Times Relative to a Forwarded Clock Input Pin Using BUFIO
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
-2
0.95V
-1
Units
-1L
Input Setup and Hold Time Relative to a Forwarded Clock Input Pin Using BUFIO for SSTL15 Standard.
TPSCS/TPHCS Setup and hold of I/O clock.
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49
Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 48: Sample Window
VCCINT Operating Voltage and Speed
Grade
Symbol
TSAMP
Description
1.0V
Sampling error at receiver pins.(1)
TSAMP_BUFIO Sampling error at receiver pins using
BUFIO.(2)
0.95V
Units
-2
-1
-1L
0.64
0.70
0.70
ns
0.40
0.46
0.46
ns
Notes:
1.
2.
This parameter indicates the total sampling error of the Spartan-7 FPGAs DDR input registers, measured across voltage, temperature, and
process. The characterization methodology uses the MMCM to capture the DDR input registers’ edges of operation. These measurements
include:
- CLK0 MMCM jitter
- MMCM accuracy (phase offset)
- MMCM phase shift resolution
These measurements do not include package or clock tree skew.
This parameter indicates the total sampling error of the Spartan-7 FPGAs DDR input registers, measured across voltage, temperature, and
process. The characterization methodology uses the BUFIO clock network and IDELAY to capture the DDR input registers’ edges of operation.
These measurements do not include package or clock tree skew.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Additional Package Parameter Guidelines
The parameters in this section provide the necessary values for calculating timing budgets for Spartan-7
FPGA clock transmitter and receiver data-valid windows.
Table 49: Package Skew(1)
Symbol
Description
Device
XC7S6
XC7S15
XC7S25
XC7S50
XC7S75
TPKGSKEW
Package skew.(2)
XC7S100
XA7S6
XA7S15
XA7S25
XA7S50
XA7S75
XC7S100
Package
Value
Units
CPGA196
44
ps
CSGA225
83
ps
FTGB196
65
ps
CPGA196
44
ps
CSGA225
83
ps
FTGB196
65
ps
CSGA225
93
ps
CSGA324
62
ps
FTGB196
83
ps
CSGA324
80
ps
FGGA484
110
ps
FTGB196
103
ps
FGGA484
117
ps
FGGA676
110
ps
FGGA484
117
ps
FGGA676
110
ps
CPGA196
44
ps
CSGA225
83
ps
CPGA196
44
ps
CSGA225
83
ps
CSGA225
93
ps
CSGA324
62
ps
CSGA324
80
ps
FGGA484
110
ps
FGGA484
117
ps
FGGA676
110
ps
FGGA484
117
ps
FGGA676
110
ps
Notes:
1.
2.
Package delay information is available for these device/package combinations. This information can be used to deskew the package.
These values represent the worst-case skew between any two SelectIO resources in the package: shortest delay to longest delay from die pad
to ball.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
XADC Specifications
The 7 Series FPGAs Overview (DS180) [Ref 1] and XA Spartan-7 Automotive FPGA Data Sheet: Overview
(DS171) [Ref 2] list the devices that contain a 7 series XADC dual 12-Bit 1 MSPS analog-to-digital
converter.
Table 50: XADC Specifications
Parameter
Symbol
Comments/Conditions
Min
Typ
Max
Units
12
–
–
Bits
–40°C ≤ Tj ≤ 100°C
–
–
±2
LSBs
–55°C ≤ Tj < –40°C; 100°C < Tj ≤ 125°C
–
–
±3
LSBs
No missing codes, guaranteed monotonic.
–
–
±1
LSBs
–40°C ≤ Tj ≤ 100°C
–
–
±8
LSBs
–55°C ≤ Tj < –40°C; 100°C < Tj ≤ 125°C
–
–
±12
LSBs
–55°C ≤ Tj ≤ 125°C
–
–
±4
LSBs
Gain error
–
–
±0.5
%
Offset matching
–
–
4
LSBs
Gain matching
–
–
0.3
%
–
–
1
MS/s
60
–
–
dB
External 1.25V reference.
–
–
2
LSBs
On-chip reference.
–
3
–
LSBs
70
–
–
dB
0
–
1
V
–0.5
–
+0.5
V
0
–
+0.5
V
Bipolar common mode range (FS input).
+0.5
–
+0.6
V
Maximum external channel input
ranges
Adjacent analog channels set within these
ranges should not corrupt measurements
on adjacent channels.
–0.1
–
VCCADC
V
Full-resolution bandwidth
Auxiliary channel full resolution
bandwidth.
250
–
–
kHz
–40°C ≤ Tj ≤ 100°C
–
–
±4
°C
–55°C ≤ Tj < –40°C; 100°C < Tj ≤ 125°C
–
–
±6
°C
–40°C ≤ Tj ≤ 100°C
–
–
±1
%
–55°C ≤ Tj < –40°C; 100°C < Tj ≤ 125°C
–
–
±2
%
VCCADC = 1.8V ± 5%, VREFP = 1.25V, VREFN = 0V, ADCCLK = 26 MHz, –55°C ≤ Tj ≤ 125°C.
Typical values at Tj = +40°C.
ADC Accuracy(1)
Resolution
Integral nonlinearity(2)
INL
Differential nonlinearity
DNL
Unipolar
Offset error
Bipolar
Sample rate
ratio(2)
Signal to noise
SNR
RMS code noise
Total harmonic
distortion(2)
THD
FSAMPLE = 500 KS/s, FIN = 20 kHz
FSAMPLE = 500 KS/s, FIN = 20 kHz
Analog Inputs(3)
Unipolar operation.
Bipolar operation.
ADC input ranges
Unipolar common mode range (FS input).
FRBW
On-chip Sensors
Temperature sensor error
Supply sensor error
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 50: XADC Specifications (Cont’d)
Parameter
Symbol
Comments/Conditions
Min
Typ
Max
Units
26
–
32
Cycles
Conversion Rate(4)
Conversion time:
continuous
tCONV
Number of ADCCLK cycles.
Conversion time: event
tCONV
Number of CLK cycles.
–
–
21
Cycles
DRP clock frequency
DCLK
DRP clock frequency.
8
–
250
MHz
ADC clock frequency
ADCCLK Derived from DCLK.
1
–
26
MHz
40
–
60
%
1.20
1.25
1.30
V
1.2375
1.25
1.2625
V
1.225
1.25
1.275
V
DCLK duty cycle
XADC Reference(5)
External reference
On-chip reference
VREFP
Externally supplied reference voltage.
Ground VREFP pin to AGND,
–40°C ≤ Tj ≤ 100°C
Ground VREFP pin to AGND,
–55°C ≤ Tj < –40°C; 100°C < Tj ≤ 125°C
Notes:
1.
2.
3.
4.
5.
Offset and gain errors are removed by enabling the XADC automatic gain calibration feature. The values are specified for when this feature
is enabled.
Only specified for bitstream option XADCEnhancedLinearity = ON.
For a detailed description, see the ADC chapter in the 7 Series FPGAs and Zynq-7000 SoC XADC Dual 12-Bit 1 MSPS Analog-to-Digital
Converter User Guide (UG480) [Ref 9].
For a detailed description, see the Timing chapter in the 7 Series FPGAs and Zynq-7000 SoC XADC Dual 12-Bit 1 MSPS Analog-to-Digital
Converter User Guide (UG480) [Ref 9].
Any variation in the reference voltage from the nominal VREFP = 1.25V and VREFN = 0V will result in a deviation from the ideal transfer
function. This also impacts the accuracy of the internal sensor measurements (i.e., temperature and power supply). However, for external
ratiometric type applications allowing reference to vary by ±4% is permitted.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Configuration Switching Characteristics
Table 51: Configuration Switching Characteristics
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
0.95V
Units
-2
-1
-1L
5.00
5.00
5.00
ms, Max
Power-on reset
(50 ms ramp rate time).
10/50
10/50
10/50
ms,
Min/Max
Power-on reset
(1 ms ramp rate time).
10/35
10/35
10/35
ms,
Min/Max
Program pulse width.
250.00
250.00
250.00
ns, Min
Power-up Timing Characteristics
TPL(1)
TPOR(2)
TPROGRAM
Program latency.
CCLK Output (Master Mode)
TICCK
Master CCLK output delay.
150.00
150.00
150.00
ns, Min
TMCCKL
Master CCLK clock Low time duty cycle.
40/60
40/60
40/60
%, Min/Max
TMCCKH
Master CCLK clock High time duty cycle.
40/60
40/60
40/60
%, Min/Max
Master CCLK frequency.
100.00
100.00
100.00
MHz, Max
50.00
50.00
50.00
MHz, Max
3.00
3.00
3.00
MHz, Typ
±50
±50
±50
%, Max
FMCCK
Master CCLK frequency for AES encrypted x16.(2)
FMCCK_START Master CCLK frequency at start of configuration.
FMCCKTOL
Frequency tolerance, master mode with respect to
nominal CCLK.
CCLK Input (Slave Modes)
TSCCKL
Slave CCLK clock minimum Low time.
2.50
2.50
2.50
ns, Min
TSCCKH
Slave CCLK clock minimum High time.
2.50
2.50
2.50
ns, Min
FSCCK
Slave CCLK frequency.
100.00
100.00
100.00
MHz, Max
EMCCLK Input (Master Mode)
TEMCCKL
External master CCLK Low time.
2.50
2.50
2.50
ns, Min
TEMCCKH
External master CCLK High time.
2.50
2.50
2.50
ns, Min
FEMCCK
External master CCLK frequency.
100.00
100.00
100.00
MHz, Max
100.00
100.00
100.00
MHz, Max
Internal Configuration Access Port
FICAPCK
Internal configuration access port (ICAPE2) clock
frequency.
Master/Slave Serial Mode Programming Switching
TDCCK/
TCCKD
DIN setup/hold.
TCCO
DOUT clock to out.
4.00/0.00 4.00/0.00 4.00/0.00
8.00
8.00
8.00
ns, Min
ns, Max
SelectMAP Mode Programming Switching
TSMDCCK/
TSMCCKD
D[31:00] setup/hold.
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54
Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 51: Configuration Switching Characteristics (Cont’d)
VCCINT Operating Voltage and Speed
Grade
Symbol
Description
1.0V
-2
0.95V
-1
Units
-1L
TSMCSCCK/
TSMCCKCS
CSI_B setup/hold.
TSMWCCK/
TSMCCKW
RDWR_B setup/hold.
TSMCKCSO
CSO_B clock to out (330 Ω pull-up resistor
required).
7.00
7.00
7.00
ns, Max
TSMCO
D[31:00] clock to out in readback.
8.00
8.00
8.00
ns, Max
FRBCCK
Readback frequency.
100.00
100.00
100.00
MHz, Max
4.00/0.00 4.00/0.00 4.00/0.00
ns, Min
10.00/0.00 10.00/0.00 10.00/0.00
ns, Min
Boundary-Scan Port Timing Specifications
TTAPTCK/
TTCKTAP
TMS and TDI setup/hold.
TTCKTDO
TCK falling edge to TDO output.
FTCK
TCK frequency.
3.00/2.00 3.00/2.00 3.00/2.00
ns, Min
7.00
7.00
7.00
ns, Max
66.00
66.00
66.00
MHz, Max
SPI Flash Master Mode Programming Switching
TSPIDCC/
TSPICCD
D[03:00] setup/hold.
TSPICCM
MOSI clock to out.
8.00
8.00
8.00
ns, Max
TSPICCFC
FCS_B clock to out.
8.00
8.00
8.00
ns, Max
3.00/0.00 3.00/0.00 3.00/0.00
ns, Min
STARTUPE2 Ports
TUSRCCLKO
STARTUPE2 USRCCLKO input to CCLK output.
FCFGMCLK
STARTUPE2 CFGMCLK output frequency.
FCFGMCLKTOL STARTUPE2 CFGMCLK output frequency tolerance.
0.50/6.70 0.50/7.50 0.50/7.50 ns, Min/Max
65.00
65.00
65.00
MHz, Typ
±50
±50
±50
%, Max
100.00
100.00
100.00
MHz, Max
Device DNA Access Port
FDNACK
DNA access port (DNA_PORT).
Notes:
1.
2.
To support longer delays in configuration, use the design solutions described in the 7 Series FPGA Configuration User Guide (UG470) [Ref 10].
See the 7 Series FPGAs Overview (DS180) [Ref 1] and XA Spartan-7 Automotive FPGA Data Sheet: Overview (DS171) [Ref 2] for a list of devices
that support bitstream encryption.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
eFUSE Programming Conditions
Table 52 lists the programming conditions specifically for eFUSE. For more information, see the 7 Series
FPGA Configuration User Guide (UG470) [Ref 10].
Table 52: eFUSE Programming Conditions(1)
Symbol
Description
IFS
VCCAUX supply current
Tj
Temperature range
Min
Typ
Max
Units
–
–
115
mA
15
–
125
°C
Notes:
1.
The FPGA must not be configured during eFUSE programming.
References
1. 7 Series FPGAs Overview (DS180)
2. XA Spartan-7 Automotive FPGA Data Sheet: Overview (DS171)
3. 7 Series FPGAs SelectIO Resources User Guide (UG471)
4. 7 Series FPGA Packaging and Pinout Specification (UG475)
5. 7 Series FPGAs PCB Design Guide (UG483)
6. Xilinx Power Estimator spreadsheet tool (XPE)
7. Zynq-7000 SoC and 7 Series Devices Memory Interface Solutions User Guide (UG586)
8. See the Clocking Wizard in Vivado software.
9. 7 Series FPGAs and Zynq-7000 SoC XADC Dual 12-Bit 1 MSPS Analog-to-Digital Converter User Guide
(UG480)
10. 7 Series FPGA Configuration User Guide (UG470)
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Revision History
The following table shows the revision history for this document:
Date
Version
Description of Revisions
03/13/2019
1.9
Removed FTGB196 package from XA7S6, XA7S15, XA7S25, and XA7S50 devices in
Table 49.
09/28/2018
1.8
Removed description of -1Q speed grade only being available in XA Spartan-7 FPGAs
from second paragraph of Introduction.
07/31/2018
1.7
In Table 12, updated Vivado tools version to 2018.2.1. In Table 13, moved all speed
grades for all devices to Production. In Table 14, added Vivado tools version for
XC7S6, XC7S15, XC7S75, XC7S100, XA7S6, XA7S15, XA7S75, and XA7S100.
06/18/2018
1.6
In Table 12, updated Vivado tools version to 2018.2. In Table 13, moved all speed
grades except -1Q (1.0V) for XC7S6 and XC7S15 to Production. In Table 14, added
Vivado tools version for XC7S6 and XC7S15.
04/04/2018
1.5
Added XA7S6, XA7S15, XA7S25, XA7S75, and XA7S100 devices throughout. In
Table 5, updated typical quiescent supply current values for XC7S25 and XC7S50
devices, and added values for XC7S6, XC7S15, XC7S75, and XC7S100 devices. In
Table 6, updated table title and ICCINTMIN and ICCAUXMIN for XC7S75 and XC7S100
devices. In Table 13, moved all speed grades for XC7S6 and XC7S15 to Preliminary,
moved -1LI (0.95V) speed grade for XC7S25 to Production, and moved all speed
grades except -1Q (1.0V) for XC7S75 and XC7S100 from Preliminary to Production.
In Table 14, added Vivado tools version for XC7S25, XC7S75, and XC7S100. In
Table 36, Table 39, Table 40, Table 41, Table 42, Table 44, Table 45, and Table 46,
changed parameter value for XA7S50 to N/A. In Table 49, added package skew
values for XC7S6 and XC7S15 devices.
12/22/2017
1.4
In Table 12, updated Vivado tools version to 2017.4. In Table 13, moved all speed
grades for XC7S75 and XC7S100 from Advance to Preliminary and all speed grades
except -1LI (0.95V) for XC7S25 from Advance to Production. In Table 14, added
Vivado tools version for XC7S25. Added Note 2 to Table 16. In Table 49, added
package skew values for XC7S25 device in CSGA324 package and XC7S75 and
XC7S100 devices in FGGA676 package.
11/20/2017
1.3
Added XA7S50 device throughout. Updated description of offered temperature
ranges in second paragraph of Introduction. Added row for junction temperature (Tj)
at expanded (Q) temperature to Table 2. Added -1Q (1.0V) speed grade to Table 5,
and Table 13 to Table 16. In Table 12, updated Vivado tools version to 2017.3. In
Table 49, added package skew values for XC7S25, XC7S50, XC7S75, and XC7S100
devices in CSGA225, FTGB196, and FGGA484 packages. Added XA Spartan-7
Automotive FPGA Data Sheet: Overview (DS171) to References.
06/20/2017
1.2
Updated paragraph before Table 6. In Table 12, updated Vivado tools version to
2017.2. In Table 13, moved all speed grades for XC7S50 from Preliminary to
Production and updated Note 1. In Table 14, added Vivado tools version for XC7S50.
In Table 49, added package skew value for XC7S50 device in FGGA484 package.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Date
Version
Description of Revisions
04/07/2017
1.1
Added 1.35V to Note 5 in Table 2. In Table 12, updated Vivado tools version to
2016.4. In Table 13, moved all speed grades for XC7S50 from Advance to
Preliminary. Removed SFI-4.1 and SPI-4.2 from descriptions of SDR LVDS receiver
and DDR LVDS receiver, respectively, in Table 15. In Table 25, changed
TIDELAYRESOLUTION units from ps to µs. Removed BUFMR from Note 1 in Table 34. In
Table 49, replaced TQGA144 with FTGB196 for XC7S6, XC7S15, and XC7S25
devices, added FTGB196 package for XC7S50 device, and added package skew value
for XC7S50 device in CSGA324 package.
09/27/2016
1.0
Initial Xilinx release.
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