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零件编号
产品描述 (功能)
HD74HC192 查看數據表(PDF) - Hitachi -> Renesas Electronics
零件编号
产品描述 (功能)
生产厂家
HD74HC192
Synchronous Up/Down Decade Counter (Dual Clock Line) Synchronous Up/Donw 4-bit Binary Counter (Dual Clock Line)
Hitachi -> Renesas Electronics
HD74HC192 Datasheet PDF : 13 Pages
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HD74HC192/HD74HC193
AC Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25
°
C
Ta = –40 to
+85
°
C
Item
Maximum clock
frequency
Symbol
f
max
V
CC
(V)
2.0
4.5
Min Typ Max Min
——4 —
— — 20 —
Max Unit Test Conditions
3
MHz
16
6.0
— — 24 — 19
Propagation delay t
PLH
time
2.0
— — 140 — 175 ns Count up to Carry
4.5
— 14 28 — 35
6.0
— — 24 — 30
t
PHL
2.0
— — 130 — 165
4.5
— 15 26 — 33
6.0
— — 22 — 28
t
PLH
2.0
— — 130 — 165
4.5
— 14 26 — 33
Count down to Borrow
6.0
— — 22 — 28
t
PHL
2.0
— — 130 — 165
4.5
— 15 26 — 33
6.0
— — 22 — 28
t
PLH
2.0
— — 215 — 270
4.5
— 21 43 — 54
Count up or down to Q
6.0
— — 37 — 46
t
PHL
2.0
— — 275 — 345
4.5
— 21 55 — 69
6.0
— — 47 — 59
t
PLH
2.0
— — 230 — 290
4.5
— 17 46 — 58
Load to Q
6.0
— — 39 — 49
t
PHL
2.0
— — 290 — 365
4.5
— 23 58 — 73
6.0
— — 49 — 62
t
PHL
2.0
— — 265 — 335
4.5
— 24 53 — 66
Clear to Q
6.0
— — 45 — 56
Pulse width
t
w
2.0
80 — — 100 — ns
4.5
16 8 — 20 —
6.0
14 – — 17 —
8
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