CY2CC910
1:10 Clock Fanout Buffer
Features
■
Low voltage operation
■
Full range support:
❐ 3.3V
❐ 2.5V
❐ 1.8V
Description
The Cypress series of network circuits are produced using
advanced 0.35 micron CMOS technology, achieving the
industry’s fastest logic and buffers.
The Cypress CY2CC910 fanout buffer features one input and 10
outputs. It is ideal for conversion from and to 3.3V, 2.5V, and 1.8V
■
Over voltage tolerant input hot swappable
■
1:10 Fanout
■
Drives either a 50-Ohm or 75-Ohm load
■
Low input capacitance
■
Low output skew
■
Low propagation delay
■
Typical (tpd less than 4 ns)
■
High speed operation:
❐ 200 MHz at1.8V
❐ 650 MHz at 2.5V and 3.3V
■
Industrial versions available
■
Available in SSOP package
Designed for Data Communications clock management applications, the large fanout from a single input reduces loading on the
input clock.
Cypress employs the unique AVCMOS type outputs VOI
(Variable Output Impedance) that dynamically adjust for variable
impedance matching, eliminate the need for series damping
resistors, and reduce overall noise.
Logic Block Diagram
3
5
7
VDD
9
4 ,8
1 5 ,2 0
11
IN
1
12
INPUT
(AVCMOS)
2 ,6 ,1 0
1 3 ,1 7
14
16
GND
18
19
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q 10
OUTPUT
(AVCMOS)
Cypress Semiconductor Corporation
Document #: 38-07348 Rev. *D
•
198 Champion Court
•
San Jose, CA 95134-1709
•
408-943-2600
Revised March 18, 2010
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CY2CC910
Pin Configuration
IN
GND
Q1
VDD
Q2
GND
Q3
VDD
Q4
GND
1
2
3
4
5
6
7
8
9
10
CY2CC910
Figure 1. 20-Pin SOIP-SSOP
20
19
18
17
16
15
14
13
12
11
VDD
Q10
Q9
GND
Q8
VDD
Q7
GND
Q6
Q5
20 pin SOIC/SSOP
Pin Description
Pin Number
Pin Name
Description
1
IN
Input
2,6,10,13,17
GND
VDD
Ground
4,8,15,20
3,5,7,9,11,12,14,16,18,19
Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8,Q9,Q10
Output
Power Supply
Maximum Ratings[1]
Storage Temperature: ................................. –65°C to +150°C
Supply Voltage to Ground Potential
Ambient Temperature: .................................. –40°C to +85°C
(Outputs only) ........................................... –0.5V to VDD + 1V
Supply Voltage to Ground Potential
DC Output Voltage.................................... –0.5V to VDD + 1V
VCC ...................................................................–0.5V to 4.6V
Power Dissipation........................................................ 0.75W
Input..................................................................–0.5V to 5.8V
Note
1. Stresses greater than those listed under absolute maximum ratings may cause permanent damage to the device. This is intended to be a stress rating only and
functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect reliability.
Document #: 38-07348 Rev. *D
Page 2 of 10
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CY2CC910
Variable Output Impedance Control (VOI)
Figure 2. Output Voltage versus Output Current (TA = 25°C)
Pull Up
Pull Down
3.5
3.5
3
3
2.5
2.5
2
2
1.5
1.5
1
1
0.5
0.5
0
0
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
-0.18
-0.16
-0.14
-0.12
Vdd = 2.5 V
-0.08
-0.06
-0.04
-0.02
0
Ioh (A)
Iol (A)
Vdd = 3.3 V
-0.1
Vdd = 3.3 V
Vdd = 1.8 V
Vdd = 2.5 V
Vdd = 1.8 V
DC Electrical Characteristics
At 3.3V (See Figure 3)
Parameter
Description
Conditions
Min
Typ
VDD = Min., VIN = VIH or VIL IOH = –12 mA
VDD = Min., VIN = VIH or VIL IOL = 12 mA
2.3
3.3
VOH
Output High Voltage
VOL
Output Low Voltage
VIH
Input High Voltage
Guaranteed Logic High
Level
VIL
Input Low Voltage
Guaranteed Logic Low Level
0.2
2
Max
Unit
V
0.5
V
5.8
V
0.8
V
IIH
Input High Current
VDD = Max.
VIN = 2.7V
1
μA
IIL
Input Low Current
VDD = Max.
VIN = 0.5V
–1
μA
II
Input High Current
VDD = Max., VIN = VDD(Max.)
VIK
Clamp Diode Voltage
VDD = Min., IIN = –18 mA
–0.7
20
μA
–1.2
V
IOK
Continuous Clamp Current
VDD = Max., VOUT = GND
–50
mA
OOFF
Power-down Disable
VDD = GND, VOUT = < 4.5V
100
μA
VH
Input Hysteresis
Document #: 38-07348 Rev. *D
80
mV
Page 3 of 10
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CY2CC910
At 2.5V (See Figure 3)
Parameter
VOH
Description
Output High Voltage
Conditions
VDD = Min., VIN = VIH or VIL
Min
Typ
Max
Unit
IOH = –7 mA
1.8
V
IOH = 12 mA
1.6
V
VOL
Output Low Voltage
VDD = Min., VIN = VIH or VIL
VIH
Input High Voltage
Guaranteed Logic High Level
IOL = 12 mA
0.65
V
5.0
V
VIL
Input Low Voltage
Guaranteed Logic Low Level
0.8
V
IIH
Input High Current
VDD = Max.
VIN = 2.4V
1
μA
IIL
Input Low Current
VDD = Max.
VIN = 0.5V
–1
μA
II
Input High Current
VDD = Max., VIN = VDD(Max.)
20
μA
VIK
Clamp Diode Voltage
VDD = Min., IIN = –18 mA
IOK
Continuous Clamp Current
VDD = Max., VOUT = GND
OOFF
Power Down Disable
VDD = GND, VOUT = < 4.5V
VH
Input Hysteresis
1.6
–0.7
–1.2
V
–50
mA
μA
100
80
mV
At 1.8V (See Figure 7)
Parameter
Description
Test Condition[2]
VDD
Supply Voltage
VIH
Input High Voltage
VIL
Input Low Voltage
VOH
Output High Voltage
IOH = –2 mA
VOL
Output Low Voltage
IOH = 2 mA
Min
Max
Unit
1.71
1.89
V
0.65VDD[1.1]
4.3
V
–0.3
0.35 VDD[0.6]
V
VDD – 0.45[1.2]
V
0.45
V
Capacitance
Parameter
Description
Test Conditions
Typ
Max
Unit
CIN
Input Capacitance
VIN = 0V
2.5
pF
COUT
Output Capacitance
VOUT = 0V
6.5
pF
Power Supply Characteristics (See Figure 3)
Max
Unit
ΔICC
Parameter
Delta ICC Quiescent Power
Supply Current
Description
(IDD @ VDD = Max and VIN = VDD) – (IDD
@ VDD = Max and VIN = VDD – 0.6V)
Test Conditions
Min
Typ
50
μA
ICCD
Dynamic Power Supply
Current
VDD = Max
Input toggling 50% Duty Cycle, Outputs
Open
0.63
mA/
MHz
IC
Total Power Supply Current
VDD = Max
Input toggling 50% Duty
Cycle, Outputs Open fL = 40 MHZ
25
mA
Note
2. Test load conditions: 500-Ohm to ground with approximately 6-pF total loading and 200-MHz maximum frequency.
Document #: 38-07348 Rev. *D
Page 4 of 10
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CY2CC910
High Frequency Parametrics
Max
Unit
DJ
Parameter
Jitter, Deterministic
Description
50% duty cycle tW(50–50)
The “point to point load circuit”
| Output Jitter – Input Jitter |
Test Conditions
See Figure 5
Min
Typ
20
ps
Fmax
3.3V
Maximum frequency
VDD = 3.3V
50% duty cycle tW(50–50)
Standard Load Circuit.
See Figure 3
160
MHz
50% duty cycle tW(50–50)
The “point to point load circuit”
See Figure 5
650
Fmax
2.5V
Maximum frequency
VDD = 2.5V
The “point-to-point load circuit”
VIN = 2.4V/0.0V VOUT = 1.7V/0.7V
See Figure 5
200
MHz
Fmax
1.8V
Maximum frequency
VDD = 1.8V
The “6-pF load circuit”
VIN = 1.7/0.0V VOUT = 1.2V/0.4V
See Figure 7
200
MHz
Fmax(20)
Maximum frequency
VDD = 3.3V
20% duty cycle tW(20-80)
The “point to point load circuit”
VIN = 3.0V/0.0V VOUT = 2.3V/0.4V
See Figure 6
250
MHz
tW
3.3V
Minimum pulse
VDD = 3.3V
The “point-to-point load circuit”
VIN = 3.0V/0.0V F = 100 MHz
VOUT = 2.0V/0.8V
See Figure 5
1
ns
tW
2.5V
Minimum pulse
VDD = 2.5V
The “point-to-point load circuit”
VIN = 2.4V/0.0V F = 100 MHz
VOUT = 1.7V/0.7V
See Figure 5
1
ns
tW
1.8V
Minimum pulse
VDD = 1.8V
The “6-pF load circuit”
VIN = 1.7V/0.0V VOUT = 1.2V/0.4V
See Figure 7
1
ns
AC Switching Characteristics
At 3.3V (VDD = 3.3V ± 5%, Temperature = –40°C to +85°C)
Parameter
Description
tPLH
Propagation Delay – Low to High
See Figure 4
Min
Typ
Max
Unit
1.5
2.7
3.5
ns
1.5
2.7
3.5
tPHL
Propagation Delay – High to Low
tR
Output Rise Time
tF
Output Fall Time
tSK(0)
Output Skew: Skew between outputs of the same package (in
phase).
See Figure 11
0.2
ns
tSK(p)
Pulse Skew: Skew between opposite transitions of the same
output (tPHL – tPLH).
See Figure 10
0.2
ns
tSK(t)
Package Skew: Skew between outputs of different packages at See Figure 12
the same power supply voltage, temperature and package type.
0.4
ns
0.8
ns
V/ns
0.8
V/ns
At 2.5V (VDD = 2.5V ± 5%, Temperature = –40°C to +85°C)
Parameter
Description
Min
Typ
Max Unit
1.5
2.7
3.5
ns
1.5
2.7
3.5
ns
tPLH
Propagation Delay – Low to High
tPHL
Propagation Delay – High to Low
tR
Output Rise Time
0.8
V/ns
tF
Output Fall Time
0.8
V/ns
tSK(0)
Output Skew: Skew between outputs of the same package (in phase).
See Figure 11
0.2
ns
tSK(p)
Pulse Skew: Skew between opposite transitions of the same output (tPHL See Figure 10
– tPLH).
0.2
ns
tSK(t)
Package Skew: Skew between outputs of different packages at the same See Figure 12
power supply voltage, temperature and package type.
0.4
ns
Document #: 38-07348 Rev. *D
See Figure 4
Page 5 of 10
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CY2CC910
AC Switching Characteristics
At 1.8V(VDD = 1.8V ±5%, Temperature = –40°C to +85°C)
Parameter
tPLH
tPHL
tR
tF
tSK(0)
Description
Propagation Delay – Low to High
Propagation Delay – High to Low
Output Rise Time 20 – 80%
Output Fall Time 20 – 80%
Output Skew: Skew between outputs of the same package (in phase).
Pulse Skew: Skew between opposite transitions of the same output (tPHL
– tPLH).
Package Skew: Skew between outputs of different packages at the same
power supply voltage, temperature and package type.
tSK(p)
tSK(t)
See Figure 8
Min
1.5
1.5
0.2
0.2
See Figure 11
See Figure 10
Typ Max Unit
2.7 3.5
ns
2.7 3.5
ns
1.5
ns
1.5
ns
0.2
ns
See Figure 12
0.2
ns
0.4
ns
Parameter Measurement Information: VDD at 3.3V to 2.5V
Figure 3. Load Circuit [3,4,5]
Figure 5. Point to Point Load Circuit[3,4,5]
From Output
Under Test
From Output
Under Test
C L = 50 pF
CL = 3 pF
500 ohm
Figure 4. Voltage Waveforms Propagation Delay Times[6]
Figure 6. Voltage Waveforms – Pulse Duration[4]
tw(50-50)
0.8VDD
VDD/2
VDD/2
Input
0V
tPLH
Output
Input
Document #: 38-07348 Rev. *D
VDD/2
0.8VDD
VDD/2
VDD/2
0V
tPHL
VDD/2
500 ohm
tw(20-80)
VOH
VOL
Input
0.8VDD
VDD/2
0V
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CY2CC910
Parameter Measurement Information: VDD at 8V
Figure 7. Load Circuit [3,4,5]
Figure 9. Voltage Waveforms – Pulse Duration[4]
From Output
Under Test
tw(50-50)
Input
CL = 6 pF
1.8V
0.9V
0.9V
500 ohm
0V
tw(20-80)
Input
1.8V
0.9V
0V
Figure 10. Pulse Skew - tsk(p)
Figure 8. Voltage Waveforms Propagation
3V
1.8V
0.9V
0.9V
Input
tPLH
1.5V
INPUT
0V
0V
tPHL
0.9V
0.9V
Output
tPHL
tPLH
VOH
1.5V
VOH
OUTPUT
VOL
VOL
tsk(P) = l tPHL - tPLH l
Figure 11. Output Skew - tsk(0)
3V
1.5V
INPUT
0V
tPHL1
tPLH1
VOH
1.5V
OUTPUT 1
tsk (O)
tsk (O)
VOL
VOH
1.5V
OUTPUT 2
VOL
tPLH 2
tsk (P) =
tPLH 2
l tPLH2 - tPLH1 l or tPHL2 - tPHL1 l
Notes
3. CL includes probe and jig capacitance.
4. All input pulses are supplied by generators having the following characteristics: PRR < 100 MHz, Z0 = 50Ω, tR < 2.5 ns, tF < 2.5 ns.
5. The outputs are measured one at a time with one transition per measurement.
6. TPLH and TPHL are the same as tpd.
Document #: 38-07348 Rev. *D
Page 7 of 10
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CY2CC910
Figure 12. Package Skew - tsk(t)
3V
1.5V
INPUT
0V
tPHL1
tPLH1
VOH
1.5V
PACKAGE 1 OUTPUT
tsk(t)
tsk(t)
VOL
VOH
1.5V
PACKAGE 2 OUTPUT
VOL
tPLH 2
tsk(t) =
tPLH 2
l tPLH2 - tPLH1 l or tPHL2 - tPHL1 l
Ordering Information
Part Number[7]
Package Type
Product Flow
Status
Pb-free
CY2CC910OXI
20-pin SSOP
Industrial, –40° to 85°C
Active
CY2CC910OXIT
20-pin SSOP–Tape and Reel
Industrial, –40° to 85°C
Active
CY2CC910OXC
20-pin SSOP
Commercial, 0°C to 70°C
Active
CY2CC910OXCT
20-pin SSOP–Tape and Reel
Commercial, 0°C to 70°C
Active
CY2CC910OXI-1
20-pin SSOP
Industrial, –40° to 85°C
Active
CY2CC910OXI-1T
20-pin SSOP–Tape and Reel
Industrial, –40° to 85°C
Active
Note
7. Devices with part numbers ending with -1 are identical to devices without the -1 suffix. There are no differences in specification.
Document #: 38-07348 Rev. *D
Page 8 of 10
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CY2CC910
Package Drawing
Figure 13. 20-Pin Shrunk Small Outline Package O20
1.14 DIA.
PIN 1 ID.
1.14
1
10
1.14
7.50
8.10
DIMENSIONS IN MILLIMETERS MIN.
11
MAX.
20
.235 MIN.
7.00
7.40
8°
GAUGE PLANE
0.25
SEATING PLANE
0.65 BSC.
2.00
MAX
0.10
1.65
1.85
0.05
0.21
0.55
0.95
4°
1.25 REF.
0.22
0.38
51-85077 *D
Document #: 38-07348 Rev. *D
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CY2CC910
Document History Page
Document Title: CY2CC910 1:10 Clock Fanout Buffer
Document No: 38-07348
Rev.
ECN NO.
Orig. of
Change
Submission
Date
**
114318
TSM
05/10/02
New Data Sheet
*A
119148
RGL
10/07/02
Added 5.8 as the Max. value for VIH in the DC Electrical Characteristics
@3.3V table.
Changed the Max. value of VIH from 5.8 to 5.0 in the DC Electrical Characteristics @2.5V table.
Changed the value of VIH from VDD+0.3 [2.25] to 4.3 in the DC Electrical
Characteristics @1.8V table.
Description of Change
*B
404287
RGL
See ECN
Added Lead-free devices for SSOP
*C
2595534
CXQ/PYRS
10/23/08
Added “Status” column to Ordering Information table
Updated Package Diagram 51-85024
Updated template
*D
2896073
CXQ
03/19/10
Updated package diagram
Removed obsolete parts from ordering information table and added
CY2CC910OXI-1, CY2CC910OXI-1T
Removed reference to SOIC packages
Sales, Solutions, and Legal Information
Worldwide Sales and Design Support
Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office
closest to you, visit us at Cypress Locations.
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© Cypress Semiconductor Corporation, 2002-2010. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of
any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for
medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as
critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems
application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign),
United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of,
and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress
integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without
the express written permission of Cypress.
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not
assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where
a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer
assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Use may be limited by and subject to the applicable Cypress software license agreement.
Document #: 38-07348 Rev. *D
Revised March 18, 2010
Page 10 of 10
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