TLF9782

August 1989

54165DM74165

8-Bit Parallel-to-Serial Converter

General Description

The ’165 is an 8-bit parallel load or serial-in register with

complementary outputs available from the last stage Paral-

lel inputting occurs asynchronously when the Parallel Load

(PL) input is LOW With PL HIGH serial shifting occurs on

the rising edge of the clock new data enters via the Serial

bine two independent clock sources or one input can act as

an active LOW clock enable

Connection Diagram

Dual-In-Line-Package

TLF9782 1

Order Number 54165DMQB 54165FMQB or DM74165N

See NS Package Number J16A N16E or W16A

Logic Symbol

TLF9782 2

Pin 16

GND

Pin 8

Pin Names

Description

CP1 CP2

Clock Pulse Inputs (Active Rising Edge)

Serial Data Input

PL

Asynchronous Parallel Load Input

(Active LOW)

P0 – P7

Parallel Data Inputs

Q7

Serial Output from Last Stage

Q7

Complementary Output

C1995 National Semiconductor Corporation

RRD B30M115Printed in U S A