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ST M74HCT32 Quad 2-Input OR Gate Data Sheet User Guide

Summary

A versatile and reliable high-speed CMOS quad 2-input OR Gate designed to seamlessly interface with legacy TTL and NMOS technologies. This technical datasheet provides comprehensive guidance for hardware engineers and digital circuit designers, detailing electrical characteristics, timing specifications (including propagation delay), absolute maximum ratings, and mechanical details across various packages (DIP, SOP, TSSOP). Use this resource to ensure optimal performance when developing robust digital logic systems requiring precise high-speed switching capabilities.

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M74HCT32

QUAD 2-INPUT OR GATE

HIGH SPEED: t PD = 13ns (TYP.) at VCC = 4.5V LOW POWER DISSIPATION: ICC = 1µA(MAX.) at TA=25°C COMPATIBLE WITH TTL OUTPUTS : VIH = 2V (MIN.) VIL = 0.8V (MAX)

SOP TSSOPDIP

BALANCED PROPAGATION DELAYS: t PLH ≅ t PHL SYMMETRICAL OUTPUT IMPEDANCE: ORDER CODES |IOH| = IOL = 4m A (MIN)

PACKAGE TUBE T & R

PIN AND FUNCTION COMPATIBLE WITH

DIP M74HCT32B1R

74 SERIES 32

SOP M74HCT32M1R M74HCT32RM13TR TSSOP M74HCT32TTR

DESCRIPTION The M74HCT32 is an high speed CMOS QUAD

The M74HCT32 is designed to directly interface

2-INPUT OR GATE fabricated with silicon gate

HSC2MOS systems with TTL and NMOS

C2MOS technology.

components. The internal circuit is composed of 2 stages All inputs are equipped with protection circuits including buffer output, which enables high noise against static discharge and transient excess immunity and stable output. voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/8August 2001

Page Summary Contents For ST M74HCT32 Quad 2-Input OR Gate Data Sheet User Guide

Page 1 M74HCT32 QUAD 2-INPUT OR GATE HIGH SPEED: t PD = 13ns (TYP.) at VCC = 4.5V LOW POWER DISSIPATION: ICC = 1µA(MAX.) at TA=25°C COMPATIBLE WITH TTL OUTPUTS : VIH = 2V (MIN.) VIL = 0.8V (MAX) SOP TSSOPDIP...
Page 2 M74HCT32 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL NAME AND FUNCTION 1, 4, 9, 12 1A to 4A Data Inputs 2, 5, 10, 13 1B to 4B Data Inputs 3, 6, 8, 11 1Y to 4Y Data Outputs GND Gr...
Page 3 M74HCT32 DC SPECIFICATIONS Test Condition Value Symbol Parameter TA = 25°C -40 to 85°C -55 to 125°C Unit VCC Min. Typ. Max. Min. Max. Min. Max. VIH High Level Input 4.5 Voltage to 2.0 2.0 2.0 VIL Low ...
Page 4 M74HCT32 TEST CIRCUIT CL = 50p F or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50Ω) WAVEFORM : PROPAGATION DELAY TIMES (f=1MHz; 50% duty cycle)
Page 5 M74HCT32 Plastic DIP-14 MECHANICAL DATA mm. inch MIN. TYP MAX. MIN. TYP. MAX.
Page 6 M74HCT32 SO-14 MECHANICAL DATA mm. inch MIN. TYP MAX. MIN. TYP. MAX. c1 45° (typ.) 0.68 0.026 8° (max.) PO13G
Page 7 M74HCT32 TSSOP14 MECHANICAL DATA mm. inch MIN. TYP MAX. MIN. TYP. MAX. 0.65 BSC 0.0256 BSC PIN 1 IDENTIFICATION
Page 8 M74HCT32 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement o...

Manual Details

Brand QUAD
Pages 8
File Size 176.80 KB
Published May 29, 2026
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Frequently Asked Questions

What voltage range is recommended for operation?

The recommended operating supply voltage (VCC) is 4.5 V to 5.5 V.

What technologies can this integrated circuit interface with?

The M74HCT32 is designed to directly interface with TTL and NMOS technologies.

Does the device have built-in electrical protection features?

Yes, all inputs are equipped with protection circuits for high noise immunity against static discharge and transient excess voltage.

What are the absolute maximum operating limits?

Absolute Maximum Ratings define operational boundaries, such as a supply voltage range of -0.5 V to +7 V.