Demultiplexer

74HCT138 Datasheet – 3-to-8 Line Decoder / Demultiplexer

Posted on by pinout

Part Number: 74HCT138

Function: 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

Package: DIP 16, PLCC 20 Pin

Manufacturer: Texas Instruments

Pinouts:
74HCT138 datasheet

Description

The 74HCT138 devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible.

Ordering Information

components

Features

1. Operating voltage range of 4.5 V to 5.5 V

2. Outputs can drive up to 10 LSTTL loads

3. Low power consumption, 80-µA max ICC

Other data sheets are available within the file: 54HCT138FK, 54HCT138J, 54HCT138W, 74HCT138D

74HCT138 Datasheet PDF Download

74HCT138 pdf


 

74HCT4051 Datasheet – Analog Multiplexer / Demultiplexer

Posted on by pinout

Part Number: 74HCT4051

Function: 8-channel analog multiplexer/demultiplexer

Package: SO, TSSOP 16 Pin Type

Manufacturer: NXP Semiconductors.

Pinouts:

74HCT4051 datasheet

 

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 device 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.

Features

1. Wide analog input voltage range from -5 V to +5 V

2. Logic level translation: to enable 5 V logic to communicate with ±5 V analog signals

3. Typical ‘break before make’ built-in

Applications:

1. Analog multiplexing and demultiplexing

2. Digital multiplexing and demultiplexing

3. Signal gating

 

Other data sheets are available within the file:

74HC4051, 74HC4051BQ, 74HC4051D, 744051, 74HC4051DB

 

74HCT4051 Datasheet PDF Download


74HCT4051 pdf