SN74HCS238 3- to 8-Line Decoder/Demultiplexer with Schmitt-Trigger Inputs

1 Features

• Wide operating voltage range: 2 V to 6 V

• Schmitt-trigger inputs allow for slow or noisy input

signals

• Low power consumption

– Typical input leakage current of ±100 nA

• ±7.8-mA output drive at 6 V

• Extended ambient temperature range: –40°C to

2 Applications

• Memory device selection with shared data bus

• Reduce required number of outputs for chip select

applications

• Route data

3 Description

The SN74HCS238 is a three to eight decoder with

gated by any of the strobe inputs, they are all forced

into the low state. When the outputs are not disabled

by the strobe inputs, only the selected output is high

while all others are low.

Device Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

SN74HCS238PW

TSSOP (16)

5.00 mm × 4.40 mm

SN74HCS238D

SOIC (16)

9.90 mm × 3.90 mm

SN74HCS238BQB

WQFN (16)

3.50 mm × 2.50 mm

SN74HCS238DYY

SOT-23-THN (16) 4.20 mm × 2.00 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

Input Voltage

Schmitt-trigger

CMOS Input

Response

Waveforms

Standard

CMOS Input

Response

Waveforms

Input Voltage

Input Voltage

Time

Time

Input Voltage

Waveforms

Low Power

Noise Rejection

Supports Slow Inputs

Time

Time

Time

Time

Benefits of Schmitt-trigger inputs

SN74HCS238

SCLS835B – OCTOBER 2020 – REVISED MAY 2021

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.