74HCT32D,652

Overview

The Nexperia 74HCT32D,652 is a quad 2-input OR gate belonging to the HCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes TTL input levels. The device features four independent OR gates in a 14-lead SOIC (SOT108-1) package. Static characteristics specify high-level output voltage of at least 3.7 V at -4.0 mA load and low-level output voltage of no more than 0.4 V at 5.2 mA load. Dynamic performance includes a maximum propagation delay of 36 ns at 4.5 V with 50 pF load.

Feature Summary

• Provides four independent 2-input OR logic functions
• Accepts TTL-compatible input voltage levels
• Includes input clamp diodes for overvoltage interfacing
• Offers symmetrical output impedance and balanced propagation delays

Applications

• Digital signal routing and bus switching
• Logic level translation between CMOS and TTL domains
• General-purpose Boolean logic implementation in control circuits

Procurement Notes

Verify the specific ordering suffix against current Nexperia documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and check for any recent Product Change Notifications regarding marking or assembly changes. Ensure the component meets the required ambient temperature operating range for the intended application environment.

Selection Notes

Select this component when TTL-compatible inputs are required from a CMOS process. The HCT series ensures compatibility with standard 5 V TTL logic families while maintaining CMOS power dissipation benefits. Verify that the 14-lead SOIC package dimensions fit the PCB layout constraints and that the thermal dissipation capabilities meet the system's power budget requirements.

Part Context

This part belongs to the 74HCT logic family, which bridges the gap between HC CMOS technology and traditional TTL standards. The 'D' designation indicates the SOIC plastic small outline package variant. The ',652' suffix typically denotes specific packaging configurations such as cut tape or reel options, though functional electrical parameters remain identical across valid suffixes within the same base part number.

Replacement Considerations

Cross-reference with other manufacturers offering 74HCT32 equivalents in SOIC-14 packages. Ensure pinout compatibility and verify that replacement parts support the same 4.5 V to 5.5 V operating voltage range and TTL input thresholds.