SN74HCS02 Quadruple 2-Input NOR Gates 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

• Alarm / tamper detect circuit

• S-R latch

3 Description

This device contains four independent 2-input NOR

Gates with Schmitt-trigger inputs. Each gate performs

the Boolean function Y = A + B in positive logic.

Device Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

SN74HCS02PW

TSSOP (14)

5.00 mm × 4.40 mm

SN74HCS02D

SOIC (14)

9.90 mm × 3.90 mm

SN74HCS02BQA

WQFN (14)

3.00 mm × 2.50 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

www.ti.com

SN74HCS02

SCLS776B – DECEMBER 2019 – REVISED JANUARY 2021

Copyright © 2021 Texas Instruments Incorporated

Submit Document Feedback

1

Product Folder Links: SN74HCS02

SN74HCS02

SCLS776B – DECEMBER 2019 – REVISED JANUARY 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.