74ABT373ADB,118

Overview

The NXP USA Inc. 74ABT373ADB,118 is an octal transparent latch with 3-State output buffers manufactured in a 20-pin SSOP Type II package (SOT339-1). It operates within a supply voltage range of 4.5V to 5.5V and supports temperatures from -40°C to +85°C. Key electrical parameters include propagation delays of 3.2ns (Dn to Qn) and 3.6ns (E to Qn) at 25°C. Output drive capability reaches +64mA/-32mA, while quiescent supply current is typically 250μA.

Feature Summary

• Octal transparent latch design coupled with independent 3-State output buffers
• High output drive capability suitable for heavily loaded buses and MOS memories
• Power-up 3-State functionality enabling live insertion and extraction
• Robust protection against latch-up and electrostatic discharge

Applications

• Driving heavily loaded 3-State buses
• Interfacing with MOS memories
• Connecting to MOS microprocessors

Procurement Notes

Verify the specific ordering suffix 'DB' corresponds to the 20-pin Plastic SSOP Type II package (SOT339-1) as defined in the official documentation. Confirm that the component meets the required temperature range of -40°C to +85°C for your application environment. Ensure compatibility with the specified 4.5V to 5.5V DC supply voltage limits during system integration.

Selection Notes

Select this component when high-speed data latching and strong bus driving are required. The ABT series offers superior speed compared to standard logic families. Consider the 20-pin SSOP package constraints regarding board space and thermal dissipation. Verify that the system can accommodate the specified input transition rates and load capacitance requirements for optimal performance.

Part Context

This device belongs to the 74ABT373A family of octal transparent latches. It utilizes BiCMOS technology to combine low power dissipation with high-speed operation. The product specification was originally published by Philips Semiconductors in February 1995. Current manufacturing and distribution are handled under the NXP brand portfolio.

Replacement Considerations

Direct substitutes include other 74ABT373 variants in compatible packages, such as the 74ABT373D or 74ABT373PW, provided the pinout and electrical characteristics remain identical. Cross-reference package dimensions carefully when switching between SO, SSOP, and TSSOP formats.