IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
FAST CMOS 16-BIT
BIDIRECTIONAL
TRANSCEIVER
IDT54/74FCT162245T/AT/CT
FEATURES:
DESCRIPTION:
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•
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The FCT162245T 16-bit transceiver is built using advanced dual metal
CMOS technology. These high-speed, low-power transceivers are ideal for
synchronous communication between two buses (A and B). The Direction and
Output Enable controls operate these devices as either two independent 8-bit
transceivers or one 16-bit transceiver. The direction control pin (xDIR) controls
the direction of data flow. The output enable pin (xOE) overrides the direction
control and disables both ports. All inputs are designed with hysteresis for
improved noise margin.
The FCT162245T has balanced output drive with current limiting resistors.
This offers low ground bounce, minimal undershoot, and controlled output fall
times–reducing the need for external series terminating resistors. The
FCT162245T is a plug-in replacement for the FCT16245T and ABT16245 for
on-board interface applications.
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•
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0.5 MICRON CMOS Technology
High-speed, low-power CMOS replacement for ABT functions
Typical tSK(o) (Output Skew) < 250ps
Low input and output leakage ≤ 1µA (max.)
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
Balanced Output Drivers:
– ±24mA (industrial)
– ±16mA (military)
Reduced system switching noise
Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V,
TA = 25°C
Available in the following packages:
– Industrial: SSOP, TSSOP
– Military: CERPACK
FUNCTIONAL BLOCK DIAGRAM
1 DIR
2 DIR
1OE
2OE
1A1
2A1
1B1
2B1
1A2
2A2
1B2
2B2
1A3
2A3
1B3
2B3
1A4
2A4
1B4
2B4
1A5
2A5
1B5
2B5
1A6
2A6
1B6
2B6
1A7
2A7
1B7
2B7
1A8
2A8
1B8
2B8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
SEPTEMBER 2009
1
© 2009 Integrated Device Technology, Inc.
DSC-5457/8
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
ABSOLUTE MAXIMUM RATINGS(1)
PIN CONFIGURATION
Symbol
Description
Max
Unit
VTERM(2)
Terminal Voltage with Respect to GND
–0.5 to +7
V
1OE
VTERM(3)
Terminal Voltage with Respect to GND
–0.5 to VCC+0.5
V
TSTG
Storage Temperature
–65 to +150
°C
IOUT
DC Output Current
–60 to +120
mA
1DIR
1
48
1B1
2
47
1A1
1B2
3
46
1A2
GND
4
45
GND
1B3
5
44
1A3
1B4
6
43
1A4
VCC
7
42
VCC
1B5
8
41
1A5
1B6
9
40
1A6
10
39
GND
GND
1B7
11
38
1A7
1B8
12
37
1A8
2B1
13
36
2A1
2B2
14
35
2A2
GND
15
34
GND
2B3
16
33
2A3
2B4
17
32
2A4
VCC
18
31
VCC
2B5
19
30
2A5
2B6
20
29
2A6
GND
21
28
GND
2B7
22
27
2A7
2B8
23
26
2A8
2DIR
24
25
2OE
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
2. All device terminals except FCT162XXXT AND FCT166XXXT (A-Port) Output and
I/O terminals.
3. Output and I/O terminals terminals for FCT162XXXT AND FCT166XXXT (A-Port).
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Parameter(1)
Symbol
Conditions
Typ.
Input Capacitance
VIN = 0V
3.5
6
pF
COUT
Output Capacitance
VOUT = 0V
3.5
8
pF
PIN DESCRIPTION
Pin Names
Description
xOE
Output Enable Inputs (Active LOW)
xDIR
Direction Control Input
xAx
Side A Inputs or 3-State Outputs
xBx
Side B Inputs or 3-State Outputs
FUNCTION TABLE(1)
Inputs
xOE
xDIR
L
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
High Z State
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
Z = High-Impedance
2
Unit
CIN
NOTE:
1. This parameter is measured at characterization but not tested.
SSOP/ TSSOP/ CERPACK
TOP VIEW
Max.
Outputs
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±10%; Military: TA = –55°C to +125°C, VCC = 5.0V ±10%
Symbol
Test Conditions(1)
Parameter
Min.
Typ.(2)
Max.
Unit
VIH
Input HIGH Level
Guaranteed Logic HIGH Level
2
—
—
V
VIL
Input LOW Level
Guaranteed Logic LOW Level
—
—
0.8
V
IIH
Input HIGH Current (Input pins)(5)
VCC = Max.
—
—
±1
µA
—
—
±1
—
—
±1
—
—
±1
VO = 2.7V
—
—
±1
VO = 0.5V
—
—
±1
—
–0.7
–1.2
V
–80
–140
–250
mA
—
100
—
mV
—
5
500
µA
Min.
60
–60
2.4
Typ.(2)
115
–115
3.3
Max.
200
–200
—
Unit
mA
mA
V
—
0.3
0.55
V
VI = VCC
Input HIGH Current (I/O pins)(5)
IIL
Input LOW Current (Input pins)(5)
VI = GND
Input LOW Current (I/O pins)(5)
IOZH
High Impedance Output Current
IOZL
(3-State Output pins)(5)
VIK
Clamp Diode Voltage
IOS
Short Circuit Current
VH
Input Hysteresis
ICCL
ICCH
ICCZ
Quiescent Power Supply Current
VCC = Max.
VCC = Min., IIN = –18mA
VCC = Max., VO =
GND(3)
—
VCC = Max.
VIN = GND or VCC
µA
µA
OUTPUT DRIVE CHARACTERISTICS
Symbol
IODL
IODH
VOH
VOL
Parameter
Output LOW Current
Output HIGH Current
Output HIGH Voltage
Output LOW Voltage
Test Conditions(1)
VCC = 5V, VIN = VIH or VIL, VO = 1.5V(3)
VCC = 5V, VIN = VIH or VIL, VO = 1.5V(3)
VCC = Min
IOH = –16mA MIL
VIN = VIH or VIL
IOH = –24mA IND
VCC = Min
IOH = 16mA MIL
VIN = VIH or VIL
IOH = 24mA IND
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 5.0V, +25°C ambient.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. Duration of the condition can not exceed one second.
5. This test limit for this parameter is ±5µA at TA = –55°C.
3
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
—
0.5
1.5
mA
VIN = VCC
VIN = GND
—
60
100
µA/
MHz
VCC = Max.
Outputs Open
fi = 10MHz
VIN = VCC
VIN = GND
—
0.6
1.5
mA
50% Duty Cycle
xOE = xDIR = GND
One Bits Togging
VIN = 3.4V
VIN = GND
—
0.9
2.3
VCC = Max.
Outputs Open
fi = 2.5MHz
VIN = VCC
VIN = GND
—
2.4
4.5(5)
50% Duty Cycle
xOE = xDIR = GND
Sixteen Bits Togging
VIN = 3.4V
VIN = GND
—
6.4
16.5(5
Symbol
Parameter
ΔICC
Quiescent Power Supply Current
TTL Inputs HIGH
VCC = Max.
VIN = 3.4V(3)
ICCD
Dynamic Power Supply
Current(4)
VCC = Max.
Outputs Open
xOE = xDIR = GND
One Input Toggling
50% Duty Cycle
Total Power Supply Current(6)
IC
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 5.0V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V). All other inputs at VCC or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ΔICC DHNT + ICCD (fCPNCP/2 + fiNi)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
ΔICC = Power Supply Current for a TTL High Input (VIN = 3.4V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current caused by an Input Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
NCP = Number of Clock Inputs at fCP
fi = Input Frequency
Ni = Number of Inputs at fi
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPZH
tPZL
tPHZ
tPLZ
tSK(o)
Parameter
Propagation Delay
A to B, B to A
Output Enable Time
xOE to A or B
Output Disable Time
xOE to A or B
Output Enable Time
xDIR to A or B(4)
Output Disable Time
xDIR to A or B(4)
Output Skew(3)
Condition(1)
CL = 50pF
RL = 500Ω
54FCT162445T
Mil.
Min.(2)
Max.
1.5
7.5
54/74FCT162245AT
Ind.
Mil.
Min.(2) Max. Min.(2) Max.
1.5
4.6
1.5
4.9
54/74FCT162245CT
Ind.
Mil.
Min.(2) Max. Min.(2)
Max.
1.5
3.5
1.5
4.5
Unit
ns
1.5
10
1.5
6.2
1.5
6.5
1.5
4.4
1.5
6.2
ns
1.5
10
1.5
5
1.5
6
1.5
4
1.5
5.2
ns
1.5
10
1.5
6.2
1.5
6.5
1.5
4.8
1.5
6.2
ns
1.5
10
1.5
5
1.5
6
1.5
4
1.5
5.2
ns
—
0.5
—
0.5
—
0.5
—
0.5
—
0.5
ns
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
4. This parameter is guaranteed but not tested.
4
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
V CC
SWITCH POSITION
7.0V
500Ω
V OUT
VIN
Pulse
Generator
50pF
Switch
Closed
All Other Tests
Open
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
D.U.T.
RT
Test
Open Drain
Disable Low
Enable Low
500Ω
CL
Test Circuits for All Waveforms
DATA
INPUT
tH
tSU
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
tREM
tSU
3V
1.5V
0V
3V
1.5V
0V
LOW-HIGH-LOW
PULSE
1.5V
tW
3V
1.5V
0V
HIGH-LOW-HIGH
PULSE
1.5V
3V
1.5V
0V
tH
Pulse Width
Set-up, Hold, and Release Times
ENABLE
SAME PHASE
INPUT TRANSITION
tPLH
tPHL
OUTPUT
tPLH
tPHL
OPPOSITE PHASE
INPUT TRANSITION
3V
1.5V
0V
VOH
1.5V
VOL
DISABLE
3V
1.5V
0V
CONTROL
INPUT
tPZL
OUTPUT
NORMALLY
LOW
3V
1.5V
0V
SWITCH
CLOSED
tPLZ
3.5V
1.5V
tPZH
OUTPUT
NORMALLY
HIGH
Propagation Delay
SWITCH
OPEN
3.5V
0.3V
VOL
tPHZ
0.3V
1.5V
0V
VOH
0V
Enable and Disable Times
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
5
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
ORDERING INFORMATION
FCT
XX
Temp. Range
XXX
Family
XXXX
Device Type
XX
Package
X
Process
Blank
B
Industrial
MIL-STD-883, Class B
PVG
PAG
Industrial Options
Shrink Small Outline Package - Green
Thin Shrink Small Outline Package - Green
E
Military Options
CERPACK
16-Bit Buffer/Line Driver
245T
245AT
245CT
162
54
74
Double-Density, 5 Volt, Balanced Drive
55 C to +125 C
40 C to +85 C
Datasheet Document History
09/06/09 Pg.6
Updated the ordering information by removing the "IDT" notation and non RoHS part.
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6
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logichelp@idt.com
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