Diodes 74AHC594 Manuel d'utilisateur télécharger pdf (Page 2)

74AHC594

Document number: DS35484 Rev. 3 - 2

2 of 11

www.diodes.com

June 2013

74AHC594

Pin Descriptions

Pin Number Pin Name Functions

1 Q1 Parallel Data Output 1

2 Q2 Parallel Data Output 2

3 Q3 Parallel Data Output 3

4 Q4 Parallel Data Output 4

5 Q5 Parallel Data Output 5

6 Q6 Parallel Data Output 6

7 Q7 Parallel Data Output 7

8 GND Ground

9 Q7S Serial Data Output

10 SHR Shift Register Reset active low

11 SHCP Shift Register Clock Input

12 STCP Storage Register Clock Input

13 STR Storage Register Reset active low

14 DS Serial Data input

15 Q0 Parallel Data Output 0

16 Vcc Supply Voltage

Functional Diagram

Logic Diagram

FF0

LATCH

STAGE 0

STAGES 1 TO 6

FF7

LATCH

STAGE 7

SHCP

SHR

STCP

STR

Q1 Q2

1 2 3 4 5 6 7 ... 10 11

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Diodes 74AHC594 Manuel d'utilisateur Page 2