SN74AHCT32N

Overview

The SN74AHCT32N is a quadruple 2-input positive-OR gate from the Texas Instruments 74HCT logic family. It operates within a supply voltage range of 4.5V to 5.5V and features a 14-pin PDIP package. The device provides four independent OR gates with buffered outputs, ensuring high noise immunity. Key electrical characteristics include a maximum propagation delay of 22ns at 5.5V with a 50pF load, low-level output current of 4mA, and high-level output current of 4mA. It supports through-hole mounting and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Contains four independent 2-input OR gates for complex logic implementation
• Buffered outputs provide high noise immunity and stable signal transmission
• Compatible with standard TTL logic levels due to HCT series design

Applications

• Digital logic circuit design requiring OR functionality
• Signal routing and selection in embedded systems
• General-purpose logic applications in industrial control equipment

Procurement Notes

Verify the specific suffix 'N' corresponds to the 14-PDIP through-hole package variant when sourcing. Confirm RoHS compliance status as indicated in official documentation. Ensure the supplier provides valid traceability data for the component batch. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit products. Check for any recent product change notices that may affect pinout or specifications.

Selection Notes

Select this component when through-hole mounting is required for mechanical stability or prototyping ease. Choose the SN74AHCT32N over HC variants if strict compatibility with 5V TTL logic levels is necessary. Consider the wider operating temperature range compared to standard commercial grade parts if environmental conditions vary. Evaluate the 4mA drive capability against load requirements to ensure sufficient fan-out without external buffering.

Part Context

This component belongs to the SN74HCTxx series, which bridges CMOS technology with TTL input compatibility. The 74HCT32 specifically implements the OR function, contrasting with NAND (74HCT00) or NOT (74HCT04) gates. It shares the same logical truth table as other 74-series OR gates but utilizes advanced CMOS processes for lower power consumption while maintaining robust noise margins suitable for mixed-signal environments.

Replacement Considerations

Direct replacements include SN74HCT32DR (SOIC package) or SN74HCT32NSR (SOIC reel). For identical PDIP packaging, verify availability of SN74HCT32N equivalents from other manufacturers such as ON Semiconductor or STMicroelectronics, ensuring pinout and electrical parameters match exactly.