PI74LPT543 Просмотр технического описания (PDF) - Pericom Semiconductor
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PI74LPT543 Datasheet PDF : 5 Pages
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PI74LPT543
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Switching Characteristics over Operating Range(1)
Parameters
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tSU
tH
tW
Description
Conditions(2)
Propagation Delay Transparent
Mode AN to BN or BN to AN
Propagation Delay
LEBA to AN, LEAB to BN
Output Enable Time
OEBA or OEAB to AN or BN
CEBA or CEAB to AN or BN
Output Disable Time(3)
OEBA or OEAB to AN or BN
CEBA or CEAB to AN or BN
Setup Time, HIGH or LOW
AN or BN to LEBA or LEAB
Hold Time, HIGH or LOW
AN or BN to LEBA or LEAB
LEBA or LEAB Pulse Width LOW(3)
CL = 50 pF
RL = 500Ω
LPT543
Com.
Min.(3) Max.
2.5 8.5
LPT543A
Com.
Min.(3) Max.
2.5 6.5
LPT543C
Com.
Min.(3) Max. Units
2.5 5.3 ns
2.5 12.5 2.5 8.0 2.5 7.0 ns
2.0 12.0 2.0 9.0 2.0 8.0 ns
2.0 9.0 2.0 7.5 2.0 6.5 ns
3.0 — 2.0 — 2.0 — ns
2.0 — 2.0 — 2.0 — ns
5.0 — 5.0 — 5.0 — ns
Notes:
1. Propagation Delays and Enable/Disable times are with Vcc = 3.3V ±0.3V, normal range. For Vcc = 2.7V, extended range, all
Propagation Delays and Enable/Disable times should be degraded by 20%.
2. See test circuit and wave forms.
3. Minimum limits are guaranteed but not tested on Propagation Delays.
4. This parameter is guaranteed but not production tested.
5. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
5
PS2062A 01/15/97
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