HD74LV161A 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics
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HD74LV161A Datasheet PDF : 19 Pages
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HD74LV161A
Function Table
Inputs
Outputs
CLR
LOAD
ENP
ENT
CLK
QA
QB
QC
QD
L
X
X
X
X
L
L
L
L
H
L
X
X
↑
A
B
C
D
H
H
X
L
↑
No change
H
H
L
X
↑
No change
H
H
H
H
↑
Count up
H
X
X
X
↓
No change
Note:
H: High level
L: Low level
X: Immaterial
↑: Low to high transition
↓: High to low transition
A, B, C, D: Data input
Carry = ENT • QA • QB • QC • QD
Pin Arrangement
CLR 1
CK 2
A3
B4
C5
D6
ENP 7
GND 8
16 VCC
15
CARRY
OUTPUT
14 QA
13 QB
12 QC
11 QD
10 ENT
9 LOAD
(Top view)
2
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