PI74FCT2157AT Ver la hoja de datos (PDF) - Pericom Semiconductor
Número de pieza
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Lista de partido
PI74FCT2157AT Datasheet PDF : 5 Pages
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PI74FCT157T/257T
(25Ω Series)PI74FCT2157T/2257T
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PI74FCT157/2157T Switching Characteristics over Operating Range
Parameters Description
Conditions(1)
157T/2157T
Com.
Min Max
157AT/2157AT 157CT/2157CT
Com.
Com.
Min Max Min Max
tPLH
Propagation Delay
tPHL
IN to ZN
tPLH
Propagation Delay
tPHL
E to ZN
tPLH
Propagation Delay
tPHL
S to ZN
CL = 50 pF
RL = 500Ω
1.5 6.0 1.5 5.0 1.5 4.3
1.5 10.5 1.5 6.0 1.5 4.8
1.5 10.5 1.5 7.0 1.5 5.2
157DT
Com.
Min Max Unit
1.5 3.9 ns
1.5 4.4 ns
1.5 4.6 ns
PI74FCT257/2257T Switching Characteristics over Operating Range
Parameters Description
Conditions(1)
257T/2257T 257AT/2257AT 257CT/2257CT
Com.
Com.
Com.
Min Max Min Max Min Max Unit
tPLH
Propagation Delay
CL = 50 pF
tPHL
IN to ZN
RL = 500Ω
tPLH
Propagation Delay
tPHL
S to ZN
tPZH
Output Enable Time
tPZL
OE to ZN
tPZH
Output Disable Time(3)
tPZL
OE to ZN
1.5 6.0
1.5
5.0
1.5
4.3
ns
1.5 10.5 1.5 7.0 1.5 5.2
ns
1.5 8.5 1.5 7.0 1.5 6.0
ns
1.5 6.0
1.5
5.5
1.5
5.0
ns
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter guaranteed but not production tested.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
5
PS2010A 03/09/96
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