74HC4051 Datasheet – Multiplexer / Demultiplexer

Part Number : 74HC4051, 74HC4051N

Function : 8-Channel Analog Multiplexer/Demultiplexer

Package : DIP 16, SO 16 Pin Type

Manufacturers : Philips Semicondcutor, NXP


74HC4051 Multiplexer Demultiplexer

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 VCC.


Pinouts :

74HC4051 datasheet pinout


1. Wide analog input voltage range: ± 5 V.
2. Low “ON” resistance:
80 W (typ.) at VCC – VEE = 4.5 V
70 W (typ.) at VCC – VEE = 6.0 V
60 W (typ.) at VCC – VEE = 9.0 V
3. Logic level translation :
to enable 5 V logic to communicate with ± 5 V analog signals
4. Typical “break before make” built in
5. Output capability: non-standard
6. ICC category: MSI


1. Analog multiplexing and demultiplexing
2. Digital multiplexing and demultiplexing
3. Signal gating

74HC4051 Datasheet PDF Download


Other data sheets within the file : 74HC4051D