74HCT32N,652

Overview

The NXP USA Inc. 74HCT32N,652 is a quad 2-input OR gate from the HCT logic family, housed in a 14-lead plastic dual in-line package (DIP14). It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range of -40 °C to +125 °C. The device features TTL-level input compatibility, symmetrical output impedance, and high noise immunity. Static characteristics include low power dissipation and balanced propagation delays. Dynamic performance at 4.5 V includes a maximum propagation delay of 24 ns and transition time of 15 ns under a 50 pF load.

Feature Summary

• Provides four independent 2-input OR logic functions with non-inverting outputs.
• Features TTL-compatible input levels for direct interfacing with standard logic families.
• Includes input clamp diodes allowing current limiting resistors for voltages exceeding VCC.
• Offers ESD protection exceeding 2000 V via Human Body Model and 200 V via Machine Model.

Applications

• General-purpose digital logic signal processing
• Data routing and selection circuits
• Logic level translation between CMOS and TTL systems

Procurement Notes

Verify the component matches the specific DIP14 package configuration and HCT logic family designation. Confirm that the ordering suffix corresponds to the intended manufacturing origin or variant requirements. Ensure compliance with RoHS directives and check for any automotive qualification status if required by the application environment.

Selection Notes

Select this component when TTL-level inputs are required alongside CMOS drive capabilities. The wide operating temperature range makes it suitable for industrial environments. Consider the DIP14 package for through-hole prototyping or applications requiring mechanical robustness over surface-mount alternatives.

Part Context

This part belongs to the 74HCT series, designed to bridge the gap between older TTL logic standards and modern CMOS technology. The HCT series maintains pinout compatibility with earlier generations while offering improved noise immunity and lower power consumption compared to standard LS-TTL devices.

Replacement Considerations

Check for equivalent parts from other manufacturers such as Nexperia or Texas Instruments that adhere to the same JEDEC JESD7A standard and maintain identical pin configurations and electrical specifications for seamless integration.