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54165DMQB-DM74165N
8-Bit Parallel-to-Serial Converter
TL/F/9782
54165/DM74165
8-Bit
Parallel-to-Serial
Converter
August 1989
54165/DM74165
8-Bit Parallel-to-Serial Converter
General Description
The ’165isan 8-bit parallel loador serial-in register with
complementary outputs available fromthelast stage. Paral-
lel inputting occurs asynchronously whenthe Parallel Load
(PL) inputis LOW. WithPL HIGH, serial shifting occurson
the rising edgeofthe clock; new data entersviathe Serial
Data (DS) input.The 2-inputOR clockcanbe usedto com-
binetwo independent clock sources,orone inputcan actas active LOW clock enable.
Connection Diagram
Dual-In-Line-Package
TL/F/9782–1
OrderNumber54165DMQB, 54165FMQBor DM74165N
SeeNS Package Number J16A, N16Eor W16A
Logic Symbol
TL/F/9782–2
VCCePin16
GNDePin8
Pin Names Description
CP1,CP2 Clock Pulse Inputs (Active Rising Edge) Serial DataInput Asynchronous Parallel Load Input
(Active LOW)
P0–P7 ParallelData Inputs Serial Output from Last Stage Complementary Output
C1995National SemiconductorCorporation RRD-B30M115/PrintedinU.S.A.
