SN74HCS166 8-Bit Parallel-Load Shift Registers 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

• Input expansion

• 8-bit data storage

3 Description

The SN74HCS166 device contains an 8-bit shift

register with one serial input and eight parallel-load

inputs.

Device Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

SN74HCS166PW

TSSOP (16)

5.00 mm × 4.40 mm

SN74HCS166D

SOIC (16)

9.90 mm x 3.90 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

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SN74HCS166

SCLS843 – AUGUST 2020

Copyright © 2020 Texas Instruments Incorporated

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SN74HCS166

SCLS843 – AUGUST 2020

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.