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HD74HC674 Datasheet, PDF (5/8 Pages) Hitachi Semiconductor – 16-bit Shift Register
HD74HC674
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = –40 to
+85°C
Item
Maximum clock
frequency
Symbol
f max
VCC (V)
2.0
4.5
Min Typ Max Min
——5 —
— — 27 —
Max Unit Test Conditions
4
MHz
21
6.0
— — 32 — 25
Propagation delay tPLH
time
t PHL
2.0
— — 200 — 250 ns Clock to SER/Q15
4.5
— 17 40 — 50
6.0
— — 34 — 43
Output enable
t ZH
time
t ZL
2.0
— — 150 — 190 ns
4.5
— 12 30 — 38
6.0
— — 26 — 33
Output disable
t HZ
time
t LZ
2.0
— — 150 — 190 ns
4.5
— 14 30 — 38
6.0
— — 26 — 33
Pulse width
tw
2.0
80 — — 100 — ns
4.5
16 6 — 20 —
6.0
14 — — 17 —
Setup time
t su
2.0
100 — — 125 — ns SER/Q15 to Clock
4.5
20 — — 25 —
6.0
17 — — 21 —
t su
2.0
100 — — 125 — ns P to Clock
4.5
20 — — 25 —
6.0
17 — — 21 —
t su
2.0
100 — — 125 — ns Mode to Clock
4.5
20 — — 25 —
6.0
17 — — 21 —
t su
2.0
100 — — 125 — ns R/W or CS to Clock
4.5
20 — — 25 —
6.0
17 — — 21 —
5