SN74AS32D

Overview

The SN74AS32D is a quadruple 2-input positive-OR gate manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features a push-pull output stage capable of sourcing -2 mA and sinking 20 mA. The device is characterized for operation from 0°C to 70°C and utilizes a 14-pin Small Outline (D) package. Propagation delays are specified as 5.8 ns maximum at 5 V with a 50 pF load.

Feature Summary

• Contains four independent 2-input positive-OR gates performing Boolean functions Y = A + B
• Features high-speed AS logic family performance with fast propagation delays
• Provides standard TTL-compatible input and output voltage levels

Applications

• Digital logic circuit design requiring OR operations
• Signal routing in bus systems
• General-purpose logic processing in industrial control equipment

Procurement Notes

Verify the obsolete status of the SN74AS32D variant before procurement planning. Confirm that alternative active versions, such as the SN74AS32DR, meet specific packaging requirements. Ensure compatibility with existing board layouts when transitioning between tube and tape-and-reel formats.

Selection Notes

Select this component for applications requiring high-speed logic operations within standard TTL voltage ranges. Consider the 14-pin SOIC package for surface-mount assembly constraints. Evaluate the obsolete status against long-term availability needs and potential substitution strategies.

Part Context

This part belongs to the Texas Instruments 74AS series of high-speed Schottky logic devices. The SN74AS32D specifically implements the quadruple 2-input OR function. It is distinct from the SN54AS32J, which supports military temperature ranges, and the SN74ALS32D, which offers lower power consumption.

Replacement Considerations

The SN74AS32DR is an active production version of the same logical function in the same package type.