74HC393N 查看數據表（PDF） - Philips Electronics
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74HC393N Datasheet PDF : 7 Pages
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Philips Semiconductors
Dual 4-bit binary ripple counter
Product specification
74HC/HCT393
Fig.4 Functional diagram.
Fig.6 Logic diagram (one counter).
December 1990
Fig.5 State diagram.
COUNT SEQUENCE FOR 1 COUNTER
COUNT
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Q0
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
OUTPUTS
Q1
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
Q2
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
Notes
1. H = HIGH voltage level
L = LOW voltage level
Q3
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
4
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