SN74AS32DBR

Overview

The SN74AS32DBR 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 supports high-level input voltages of 2 V and low-level input voltages of 0.8 V. The device provides a high-level output current of -2 mA and a low-level output current of 20 mA. Maximum propagation delays are 5.8 ns for both tPLH and tPHL at 5 V with a 50 pF load. It functions in the commercial temperature range of 0°C to 70°C and utilizes a 14-pin Small Outline Integrated Circuit (SOIC) package.

Feature Summary

• Contains four independent 2-input positive-OR gates performing Boolean OR logic functions
• Features high-speed switching characteristics suitable for fast digital signal processing
• Provides robust low-level output drive capability for interfacing with multiple loads

Applications

• Digital logic circuit design requiring OR functionality
• Signal routing and selection systems
• Data bus management architectures

Procurement Notes

Verify the specific ordering suffix against official documentation, as it determines packaging type and material specifications. Confirm that the component status aligns with production requirements, noting that certain variants may be obsolete while others remain active. Ensure compliance with RoHS directives and moisture sensitivity levels relevant to the assembly process.

Selection Notes

Select this component when high-speed OR logic operations are required within standard 5 V CMOS/TTL compatible environments. Consider the 14-pin SOIC package for surface-mount applications where space efficiency is necessary. Evaluate the 20 mA low-level output current capacity to ensure adequate drive strength for downstream circuitry loads.

Part Context

This part belongs to the Texas Instruments 74AS series, which represents Advanced Schottky technology designed for high-speed performance. It serves as a standard catalog logic gate providing fundamental Boolean operations. The device is distinct from military-grade counterparts like the SN54AS32, which offer extended temperature ranges but share similar electrical logic functions.

Replacement Considerations

SN74ALS32D offers comparable functionality with lower power consumption but reduced speed. SN74LS32D provides slower switching speeds with significantly lower drive current capabilities.