1. General description
The 74HC4051; 74HCT4051 is a high-speed Si-gate CMOS device and is pin compatible
with Low-power Schottky TTL (LSTTL). The device is specified in compliance with JEDEC
standard no. 7A.
The 74HC4051; 74HCT4051 is an 8-channel analog multiplexer/demultiplexer with three
digital select inputs (S0 to S2), an active-LOW enable input (E
), eight independent
inputs/outputs (Y0 to Y7) and a common input/output (Z). With E
LOW, one of the eight
switches is selected (low impedance ON-state) by S0 to S2. With E
HIGH, all switches are
in the high-impedance OFF-state, independent of S0 to S2.
V
CC
and GND are the supply voltage pins for the digital control inputs (S0 to S2, and E).
The V
CC
to GND ranges are 2.0 V to 10.0 V for 74HC4051 and 4.5 V to 5.5 V for
74HCT4051. The analog inputs/outputs (Y0 to Y7, and Z) can swing between V
CC
as a
positive limit and V
EE
as a negative limit. V
CC
V
EE
may not exceed 10.0 V.
For operation as a digital multiplexer/demultiplexer, V
EE
is connected to GND (typically
ground).
2. Features and benefits
Wide analog input voltage range from 5 V to +5 V
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 +85C and 40 Cto +125C
3. Applications
Analog multiplexing and demultiplexing
Digital multiplexing and demultiplexing
Signal gating
74HC4051; 74HCT4051
8-channel analog multiplexer/demultiplexer
Rev. 7 — 19 July 2012 Product data sheet
