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HD74HCT374 Datasheet, PDF (5/10 Pages) Hitachi Semiconductor – Octal D-type Flip-Flops(with inverted 3-state outputs) | |||
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HD74HCT374/HD74HCT534
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = â40 to
+85°C
Test Conditions
Item
Maximum clock
frequency
Symbol Min Typ Max Min Max Unit VCC (V)
f max
â â 30 â 24 MHz 4.5
Propagation delay tPLH
time
t PHL
Output enable
t ZL
time
t ZH
Output disable
t LZ
time
t HZ
Setup time
t su
Hold time
th
Pulse width
tw
Output rise/fall
t TLH
time
t THL
Input capacitance Cin
â 12 28 â 35 ns 4.5
â 15 28 â 35
4.5
â 16 30 â 38 ns 4.5
â 15 30 â 38
4.5
â 13 30 â 38 ns 4.5
â 16 30 â 38
4.5
20 2 â 25 â ns 4.5
5 0 â 6 â ns 4.5
16 5 â 20 â ns 4.5
â 4 12 â 15 ns 4.5
â 5 10 â 10 pF â
Data to clock
Clock to data
Clock, output control
5
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