Data Sheet

1. General description
The 74HC4051; 74HCT4051 is a single-pole octal-throw analog switch (SP8T) suitable for
use in analog or digital 8:1 multiplexer/demultiplexer applications. The switch features
three digital select inputs (S0, S1 and S2), eight independent inputs/outputs (Yn), a
common input/output (Z) and a digital enable input (E
). When E is HIGH, the switches are
turned off. Inputs include clamp diodes. This enables the use of current limiting resistors
to interface inputs to voltages in excess of V
CC
.
2. Features and benefits
 Wide analog input voltage range from 5 V to +5 V
 Complies with JEDEC standard no. 7A
 Low ON resistance:
 80  (typical) at V
CC
 V
EE
=4.5V
 70  (typical) at V
CC
 V
EE
=6.0V
 60  (typical) at V
CC
 V
EE
=9.0V
 Logic level translation: to enable 5 V logic to communicate with 5 V analog signals
 Typical ‘break before make’ built-in
 ESD protection:
 HBM JESD22-A114F exceeds 2000 V
 MM JESD22-A115-A exceeds 200 V
 CDM JESD22-C101E exceeds 1000 V
 Multiple package options
 Specified from 40 Cto +85C and 40 Cto +125C
3. Applications
 Analog multiplexing and demultiplexing
 Digital multiplexing and demultiplexing
 Signal gating
74HC4051; 74HCT4051
8-channel analog multiplexer/demultiplexer
Rev. 8 — 5 February 2016 Product data sheet