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HD74HC195 Datasheet, PDF (6/9 Pages) Hitachi Semiconductor – 4-bit Parallel-Access Shift Register | |||
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HD74HC195
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = â40 to
+85°C
Item
Maximum clock
frequency
Symbol
f max
VCC (V)
2.0
4.5
Min Typ Max Min
ââ6 â
â â 30 â
Max Unit
5
MHZ
24
6.0
â â 35 â 28
Propagation delay tPHL
time
2.0
â â 140 â 175 ns
4.5
â 13 28 â 35
6.0
â â 24 â 30
t PLH
2.0
â â 140 â 175 ns
4.5
â 13 28 â 35
6.0
â â 24 â 30
t PHL
2.0
â â 150 â 190 ns
4.5
â 15 30 â 38
6.0
â â 26 â 33
Pulse width
tw
2.0
80 â â 100 â ns
4.5
16 7 â 20 â
6.0
14 â â 17 â
Setup time
t su
2.0
100 â â 125 â ns
4.5
20 6 â 25 â
6.0
17 â â 21 â
2.0
100 â â 125 â ns
4.5
20 13 â 25 â
6.0
17 â â 21 â
Hold time
th
2.0
0 ââ 0
â ns
4.5
0 â3 â 0
â
6.0
0 ââ 0
â
Removal time
t rem
2.0
75 â â 95 â ns
4.5
15 8 â 19 â
6.0
13 â â 16 â
2.0
25 â â 31 â ns
4.5
5 0 â6
â
6.0
4 ââ 5
â
Test Conditions
Clock to Q
Clear to Q
Clock to Clear
A, B, C, D, J, K to Clock
Shift/Load to Clock
Any input except Shift/Load
Shift/Load to Clock
Clear inactive to Clock
6
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