HD74LS393RPEL 查看數據表（PDF） - Renesas Electronics
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HD74LS393RPEL Datasheet PDF : 7 Pages
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HD74LS393
Function Table
Count
QD
0
L
1
L
2
L
3
L
4
L
5
L
6
L
7
L
8
H
9
H
10
H
11
H
12
H
13
H
14
H
15
H
H; high level, L; low level
Block Diagram (1/2)
Input A
Clear
Input
Output
QC
QB
QA
L
L
L
L
L
H
L
H
L
L
H
H
H
L
L
H
L
H
H
H
L
H
H
H
L
L
L
L
L
H
L
H
L
L
H
H
H
L
L
H
L
H
H
H
L
H
H
H
QA
T
Clear
QB
T
Clear
QC
T
Clear
QD
T
Clear
QA
QB
Outputs
QC
QD
Rev.2.00, Feb.18.2005, page 2 of 6
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