HD74HC574 查看數據表（PDF） - Hitachi -> Renesas Electronics
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HD74HC574 Datasheet PDF : 11 Pages
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HD74HC564/HD74HC574
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
——6 —
— — 30 —
Max Unit Test Conditions
5
MHz
24
6.0
— — 35 — 28
Propagation delay tPLH
time
t PHL
2.0
— — 155 — 195 ns Clock to output
4.5
— 13 31 — 39
6.0
— — 26 — 33
Output enable
t ZH
time
t ZL
2.0
— — 150 — 190 ns
4.5
— 13 30 — 38
6.0
— — 26 — 33
Output disable
t HZ
time
t LZ
2.0
— — 150 — 190 ns
4.5
— 15 30 — 38
6.0
— — 26 — 33
Setup time
t su
2.0
— — 100 — 125 ns
4.5
— 1 20 — 25
6.0
— — 17 — 21
Hold time
th
2.0
5 —— 5
— ns
4.5
5 0 —5
—
6.0
5 —— 5
—
Pulse width
tw
2.0
80 — — 100 — ns
4.5
16 4 — 20 —
6.0
14 — — 17 —
Output rise/fall
t TLH
time
t THL
2.0
— — 60 — 75 ns
4.5
— 4 12 — 15
6.0
— — 10 — 13
Input capacitance Cin
—
— 5 10 — 10 pF
7
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