DATA SH EET
Product specification
File under Integrated Circuits, IC04
January 1995
INTEGRATED CIRCUITS
HEF4519B
MSI
Quadruple 2-input multiplexer
For a complete data sheet, please also download:
•The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC
•The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC
January 1995 2
Philips Semiconductors Product specification
Quadruple 2-input multiplexer
HEF4519B
MSI
DESCRIPTION
The HEF4519B provides four multiplexing circuits with
common select inputs (SA, SB); each circuit contains two
inputs (An, Bn) and one output (On). It may be used to
select four bits of information from one of two sources.
The ‘A’ inputs are selected when SAis HIGH, the ‘B’ inputs
when SBis HIGH. When SAand SBare HIGH, the output
(On) is the logical EXCLUSIVE-NOR of the Anand
Bninputs (On= A
n
Bn).
When SAand SBare LOW, the output (On) is LOW,
independent of the multiplexer inputs (Anand Bn).
The HEF4519B cannot be used to multiplex analogue
signals. The outputs utilize standard buffers for best
performance.
Fig.1 Functional diagram.
HEF4519BP(N): 16-lead DIL; plastic (SOT38-1)
HEF4519BD(F): 16-lead DIL; ceramic (cerdip)
(SOT74)
HEF4519BT(D): 16-lead SO; plastic (SOT109-1)
( ): Package Designator North America
Fig.2 Pinning diagram.
PINNING
FAMILY DATA, I
DD
LIMITS category MSI
See Family Specifications
S
A,SB
selects inputs (active HIGH)
A
0
to A
3
multiplexer inputs
B
o
to B
3
multiplexer inputs
O
0
to O
3
multiplexer outputs