74HC393 Просмотр технического описания (PDF) - Philips Electronics

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74HC393

Dual 4-bit binary ripple counter

Philips Electronics 

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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