參數(shù)資料
型號: HD74LV163A
廠商: Hitachi,Ltd.
元件分類: 通用總線功能
英文描述: Synchronous 4-bit Binary Counter (Synchronous Clear)
中文描述: 同步4位二進(jìn)制計數(shù)器(同步清除)
文件頁數(shù): 2/19頁
文件大?。?/td> 77K
代理商: HD74LV163A
HD74LV163A
2
Function Table
Inputs
CLR
Outputs
LOAD
ENP
ENT
CLK
QA
QB
QC
QD
L
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
X
Note:
X
X
X
No change
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
13
14
11
12
15
16
9
10
V
CC
CARRY
OUTPUT
QA
QB
QC
QD
1
2
3
4
5
6
7
8
CLR
CK
A
B
C
D
ENP
GND
ENT
LOAD
(Top view)
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