Question

Describe the operation of an 8-output Demultiplexer with CMOS IC using information from 4501 datasheet.

Answer 1

Answer :-

1-of-8 Decoder/

Demultiplexer

High−Performance Silicon−Gate CMOS

The MC74HC238A is identical to the pinout of the LS238. Instrument

Inputs are compatible with standard CMOS outputs; With pullup

Resistors, they are compatible with LSTTL outputs.

HC238 decodes three-bit addresses in one of eight

Active - High output. This device has three chip select inputs, two two

Active - low and an active to facilitate high demyelination,

Cascading, and chip - selection function. Demultiplexing function

This is done using address input to select the desired

Device output When chip selects are used as a data input

Other chip selections are held in their active states.

Features

• Output Drive Capability: 10 LSTTL Loads

• Outputs Directly Interface to CMOS, NMOS and TTL

• Operating Voltage Range: 2.0 V to 6.0 V

• Low Input Current: 1.0 -

A

• High Noise Immunity Characteristic of CMOS Devices

• In Compliance with the Requirements Defined by JEDEC

Standard No. 7A

• Chip Complexity: 100 FETs or 29 Equivalent Gates

• NLV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC−Q100

Qualified and PPAP Capable

• These are Pb−Free Devices*

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