74ABT373ADB,112

Overview

The NXP USA Inc. 74ABT373ADB,112 is an octal transparent latch featuring 3-State output buffers within the ABT logic family. It operates on a single-ended input and provides non-inverting outputs. The device supports a supply voltage range of 4.5 V to 5.5 V. Propagation delay from Dn to Qn ranges from 1.4 ns to 4.7 ns at 25°C, extending to 5.1 ns across the full temperature range. Output drive capability reaches +64 mA for low-level and -32 mA for high-level states. It utilizes a 20-pin SSOP Type II package (SOT339-1) and functions reliably between -40°C and +85°C.

Feature Summary

• Octal transparent latch design with independent Enable and Output Enable control gates
• High-output drive capability suitable for heavily loaded 3-State buses and MOS memories
• Power-up 3-State functionality permitting live insertion and extraction without bus contention
• Robust ESD protection exceeding 2000 V per MIL STD 883 Method 3015

Applications

• Driving heavily loaded 3-State buses in digital systems
• Data storage interfaces for MOS memories
• Data buffering for MOS microprocessors
• Live insertion/extraction peripheral connections

Procurement Notes

Verify the specific ordering suffix ',112' against current manufacturer documentation to confirm packaging details and availability status. Confirm that the SSOP Type II package matches the required footprint for the target PCB layout. Ensure the component meets all applicable environmental compliance standards relevant to the deployment region before finalizing procurement orders.

Selection Notes

Select this component when an octal latch with high-speed BiCMOS performance and robust 3-State buffering is required. The ABT series offers superior speed compared to standard TTL while maintaining compatibility. Consider the 20-pin SSOP package constraints and verify that the 4.5 V to 5.5 V operating voltage aligns with the system power rails. Evaluate thermal management requirements given the maximum junction temperature limits specified in the datasheet.

Part Context

This part belongs to the 74ABT373A product line, which defines octal transparent latches with 3-State outputs. The 'DB' designation indicates the 20-pin Plastic SSOP Type II package variant. The ',112' suffix typically denotes specific tape-and-reel or tube packaging configurations used by NXP Semiconductors for distribution. This component represents a legacy high-performance logic solution originally developed under Philips Semiconductors specifications.

Replacement Considerations

Direct replacements include other 74ABT373 variants in compatible packages such as SO or DIP formats. Verify pinout compatibility and electrical characteristics match the original design requirements. Cross-reference with Nexperia or other authorized manufacturers offering equivalent ABT series octal latches with identical 3-State buffer specifications.