PI74FCT191TQ Просмотр технического описания (PDF) - Pericom Semiconductor
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PI74FCT191TQ Datasheet PDF : 6 Pages
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PI74FCT191T
(25Ω SERIES) PI74FCT2191T
4-BIT BINARY COUNTERS 1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
Switching Characteristics (Over Operating Range)
Symbol
tCPQ
tCPTC
tCPRC
tCERC
tUDRC
tUDTC
tDQ
tPLQ
Description(1)
Propagation Delay
CP TO Qi
Propagation Delay
CP to TC
Propagation Delay
CP to RC
Propagation Delay
CE to RC
Propagation Delay
U/D to RC
Propagation Delay
U/D to TC
Propagation Delay
Di to Qi
Propagation Delay
PL to Qi
191T
191AT
2191T
2191AT
191CT
Conditions Min.
Ma.x Min.
Max. Min.
Max. Unit
2.5
12
2.5
7.8
2.0
6.9
3.0
14
3.0
11.8
2.5
10.2
2.5
8.5
2.5
8.5
2.0
8.0
2.0
8.0
2.0
7.2
1.5
6.8
CL = 50 pF
RL = 500Ω
4.0
15
2.0
9.8
2.0
9.0
ns
3.0
11
3.0
7.2
2.0
6.8
2.0
14
2.0
9.1
2.0
8.5
3.0
13
3.0
8.5
2.0
7.8
Notes:
1. See Test Circuit and Waveforms.
2. Minimum limits are guaranteed but not tested on Propgation Delays.
3. This parameter guaranteed but not production tested.
5
PS2084B 01/13/97
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