Philips Semiconductors
Product specification
8-channel analog multiplexer/demultiplexer
74HC/HCT4051
ORDERING INFORMATION
See “74HC/HCT/HCU/HCMOS Logic Package Information”.
PIN DESCRIPTION
PIN NO.
SYMBOL
NAME AND FUNCTION
common input/output
enable input (active LOW)
negative supply voltage
ground (0 V)
3
Z
6
E
7
VEE
8
GND
S0 to S2
Y0 to Y7
VCC
11, 10, 9
select inputs
13, 14, 15, 12, 1, 5, 2, 4
16
independent inputs/outputs
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3