74AC32MTR

Overview

The STMicroelectronics 74AC32MTR is a quad 2-input OR gate fabricated in sub-micron silicon gate C2MOS technology. It operates within a supply voltage range of 2V to 6V and features high-speed performance with a typical propagation delay of 4ns at 5V. The device provides symmetrical output impedance with minimum drive currents of 24mA for both high and low states. It includes protection circuits against static discharge, offering 2kV ESD immunity, and ensures improved latch-up immunity.

Feature Summary

• Advanced high-speed CMOS logic utilizing sub-micron silicon gate and double-layer metal wiring C2MOS technology
• High noise immunity with balanced propagation delays and stable buffered output stages
• Robust input and output protection circuits providing 2kV ESD immunity against static discharge
• Capable of driving 50Ω transmission lines with symmetrical output impedance

Applications

• General-purpose digital logic applications requiring quad 2-input OR functionality
• Systems requiring direct interface with TTL and NMOS components due to pin compatibility
• Designs needing high-speed signal processing with low power dissipation characteristics

Procurement Notes

Verify component authenticity as the 74AC32MTR is listed as an obsolete product by the manufacturer. Confirm availability through authorized distributors or secondary market suppliers. Ensure replacement strategies account for potential lead time variations associated with end-of-life components. Validate that alternative sources provide original STMicroelectronics packaging and documentation.

Selection Notes

Select this component for designs requiring quad 2-input OR gates with AC series speed and low power consumption. It serves as a plug-in replacement for LSTTL devices while maintaining CMOS efficiency. Consider the 2V to 6V operating voltage range and 14-pin package options when integrating into existing circuit architectures. Verify thermal and electrical specifications match system requirements before implementation.

Part Context

The 74AC32 belongs to the 74AC family of advanced CMOS logic devices produced by STMicroelectronics. This specific part number denotes the SOP-14 surface mount variant. The AC series combines the high speed of LSTTL with true CMOS low power dissipation. It is designed for applications demanding fast switching speeds and high noise immunity in standard digital logic environments.

Replacement Considerations

Direct substitutes include other manufacturers' 74AC32 variants in compatible packages. Verify pinout and electrical specifications match the original design requirements. Consider functional equivalents from the 74HC or 74HCT families if speed constraints allow, noting differences in drive current and voltage thresholds.