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PO74G304A
3.3V 1:4 CMOS Clock Buffered Driver
700MHz TTL/CMOS Potato Chip
07/31/06
FEATURES:
* Patented technology * Operating frequency up to 700MHz with 2pf load * Operating frequency up to 650MHz with 5pf load * Operating frequency up to 450MHz with 15pf load * Operating frequency up to 100MHz with 50pf load * Very low output pin to pin skew < 100ps Max * Very low pulse skew < 150ps Max * VCC = 1.65V to 3.6V * Propagation delay < 2.0ns max with 15pf load * Low input capacitance: 3pf typical * 1:4 fanout * Packaging (Pb-free & Green available) * Available in 8-pin TSSOP package
DESCRIPTION:
Potato Semiconductor's PO74G304A is designed for world top performance using submicron CMOS technology to achieve 700MHz TTL output frequency with less than 100ps output pin to pin skew. PO74G304A is a 3.3V CMOS 1 input to 4 outputs Buffered driver to achieve 700MHz output frequency. Typical applications are clock and signal distribution. They are used for networking and communications applications. Inputs can be driven from either 3.3V or 5V devices. This feature allows the use of these devices as translators in a mixed 3.3V/5V system environment.
Pin Configuration
Logic Block Diagram
Y0
CLK_IN OE Y0 GND
1 2 3 4
8 7 6 5
Y3 Y2 VDD Y1
OE CLK_IN Y3 Y1
Y2
Pin Description
Pin# 1 2 3,5,7,8 4 6 De s cription 5V Tolerant clock input Active High Output Enable. LVCMOS level outputs Groun 3.3V powe
FUNCTION TABLE
INPUTS CLKIN OE OUTPUT 1Y (0:3)
L H L H
L L H H
L L L H
1
Copyright (c) 2005-2006, Potato Semiconductor Corporation
PO74G304A
3.3V 1:4 CMOS Clock Buffered Driver
700MHz TTL/CMOS Potato Chip
07/31/06
Maximum Ratings
Description Storage Temperature Operation Temperature Operation Voltage Input Voltage Output Voltage Max -65 to 150 -40 to 85 -0.5 to +4.6 -0.5 to +5.5 -0.5 to Vcc+0.5 Unit C C V V V Note:
stresses greater than listed under 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 specification is not implied.
DC Electrical Characteristics
Symbol Description
Output High voltage Output Low voltage Input High voltage Input Low voltage Input High current Input Low current Clamp diode voltage
Test Conditions
Vcc=3V Vin=VIH or VIL, IOH= -12mA Vcc=3V Vin=VIH or VIL, IOH=12mA Guaranteed Logic HIGH Level (Input Pin) Guaranteed Logic LOW Level (Input Pin) Vcc = 3.6V and Vin = 5.5V Vcc = 3.6V and Vin = 0V Vcc = Min. And IIN = -18mA
Min
Typ
Max
Unit
VOH VOL VIH VIL IIH IIL VIK
Notes:
1. 2. 3. 4. 5.
2.4 2 -0.5 -
3 0.4 -0.7
0.5 5.5 0.8 50 -50 -1.2
V V V V uA uA V
For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. Typical values are at Vcc = 3.3V, 25 C ambient.
This parameter is guaranteed but not tested. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. VoH = Vcc - 0.6V at rated current
2
Copyright (c) 2005-2006, Potato Semiconductor Corporation
PO74G304A
3.3V 1:4 CMOS Clock Buffered Driver
700MHz TTL/CMOS Potato Chip
07/31/06
Power Supply Characteristics
Symbol Description
Quiescent Power Supply Current
Test Conditions (1)
Vcc=Max, Vin=Vcc or GND
Min
Typ
Max
Unit
IccQ
Notes:
1. 2. 3. 4.
-
0.1
30
uA
For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. Typical values are at Vcc = 3.3V, 25C ambient. This parameter is guaranteed but not tested. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
Capacitance
Parameters (1) Description
Input Capacitance Output Capacitance
Test Conditions
Vin = 0V Vout = 0V
Typ
Max
Unit
Cin Cout
Notes:
3 -
4 6
pF pF
1 This parameter is determined by device characterization but not production tested.
Switching Characteristics
Symbol Description
Propagation Delay A to Bn Propagation Delay A to Bn Rise/Fall Time Pulse Skew (Same Package) Output Pin to Pin Skew (Same Package) Output Skew (Different Package) Input Frequency Input Frequency Input Frequency Input Frequency
Test Conditions (1)
CL = 15pF CL = 15pF 0.8V - 2.0V CL = 15pF, 125MHz CL = 15pF, 125MHz CL = 15pF, 125MHz CL = 5 0 p F CL =15pF CL = 5pF CL = 2pF
M ax
Unit
tPLH tPHL tr/tf tsk(p) tsk(o) tsk(pp) fmax fmax fmax fmax
Notes:
2.0 2.0 0.8 150 100 400 100 450 650 700
ns ns ns ps ps ps MHz MHz MHz MHz
1. See test circuits and waveforms. 2. tpLH, tpHL, tsk(p), and tsk(o) are production tested. All other parameters guaranteed but not production tested. 3. Airflow of 1m/s is recommended for frequencies above 133MHz
3
Copyright (c) 2005-2006, Potato Semiconductor Corporation
PO74G304A
3.3V 1:4 CMOS Clock Buffered Driver
700MHz TTL/CMOS Potato Chip
07/31/06
Test Waveforms
Test Circuit
50
4
Copyright (c) 2005-2006, Potato Semiconductor Corporation
PO74G304A
3.3V 1:4 CMOS Clock Buffered Driver
700MHz TTL/CMOS Potato Chip
07/31/06
Packaging Mechanical Drawing: 8 pin TSSOP
8
SEATING PLANE
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
5
Copyright (c) 2005-2006, Potato Semiconductor Corporation
PO74G304A
3.3V 1:4 CMOS Clock Buffered Driver
700MHz TTL/CMOS Potato Chip
02/12/08
Ordering Information
Ordering Code PO74G304ATU PO74G304ATR
8pin TSSOP 8pin TSSOP
Package
Tube Tape and reel Pb-free & Green Pb-free & Green
Top-Marking PO74G304AT PO74G304AT
TA -40C to 85C -40C to 85C
IC Package Information
PACKAGE CODE PACKAGE TYPE TAPE WIDTH (mm) TAPE PITCH (mm) PIN 1 LOCATION TAPE TRAILER LENGTH QTY PER REEL TAPE LEADER LENGTH QTY PER TUBE
T
TSSOP 8
12
8
Top Left Corner
39 (12")
3000
64 (20")
158
6
Copyright (c) 2005-2006, Potato Semiconductor Corporation

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