December 1990

3

Philips Semiconductors

Product specification

8-bit shift register with input flip-flops

74HC/HCT597

PIN DESCRIPTION

PIN NO.

SYMBOL

NAME AND FUNCTION

8

GND

ground (0 V)

9

Q

serial data output

10

MR

asynchronous reset input (active LOW)

11

shift clock input (LOW-to-HIGH, edge-triggered)

12

storage clock input (LOW-to-HIGH, edge-triggered)

13

PL

parallel load input (active LOW)

14

serial data input

15, 1, 2, 3, 4, 5, 6, 7

parallel data inputs

16

positive supply voltage

Fig.1 Pin configuration.

Fig.2 Logic symbol.

Fig.3 IEC logic symbol.