HD74HC194P 查看數據表（PDF） - Renesas Electronics
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HD74HC194P Datasheet PDF : 9 Pages
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HD74HC194
Switching Characteristics
Item
Maximum clock
frequency
Propagation delay
time
Pulse width
Setup time
Hold time
Removal time
Output rise/fall
time
Input capacitance
Symbol VCC (V)
fmax
2.0
4.5
6.0
tPHL
2.0
4.5
6.0
tPLH
2.0
4.5
6.0
tPHL
2.0
4.5
6.0
tw
2.0
4.5
6.0
tsu
2.0
4.5
6.0
2.0
4.5
6.0
th
2.0
4.5
6.0
trem
2.0
4.5
6.0
tTLH
2.0
tTHL
4.5
6.0
Cin
—
(CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = –40 to +85°C
Unit
Min Typ Max Min Max
Test Conditions
—— 6
—
5
ns
— — 30
—
24
— — 35
—
28
— — 140 —
175 ns Clock to Q
— 12 28
—
35
— — 24
—
30
— — 140 —
175 ns
— 12 28
—
35
— — 24
—
30
— — 150 —
190 ns Clear to Q
— 13 30
—
38
— — 26
—
33
80 — — 100
—
ns Clock or Clear
16 6 —
20
—
14 — —
17
—
100 — — 125
—
ns A, B, C or D to Clock
20 7 —
25
—
17 — —
21
—
150 — — 187
—
ns Mode controls to Clock
30 17 —
37
—
25 — —
31
—
0 ——
0
—
ns Any input
0 –4 —
0
—
0 ——
0
—
25 — —
31
—
ns Clear inactive to Clock
5
1—
6
—
4 ——
5
—
— — 75
—
95
ns
— 5 15
—
19
— — 13
—
16
— 5 10
—
10 pF
Rev.2.00 Jan 31, 2006 page 5 of 8
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