74ABT373CMTCX

Overview

The onsemi 74ABT373CMTCX is an octal transparent latch with 3-STATE outputs housed in a 20-lead Thin Shrink Small Outline Package (TSSOP). It operates within a supply voltage range of +4.5V to +5.5V and supports an ambient temperature range of -40°C to +85°C. The device features high output drive capabilities, providing a sink current of 64mA and a source current of 32mA. Propagation delays from data inputs to outputs are typically 2.7ns at 5.0V with a 50pF load, while latch enable to output delays are typically 3.1ns.

Feature Summary

• Provides eight D-type latches with 3-STATE output buffers for bus interfacing applications
• Features high-current output drivers capable of sinking 64mA and sourcing 32mA
• Ensures glitch-free, high-impedance bus loading during power-up and power-down cycles
• Includes guaranteed simultaneous switching specifications and noise level performance

Applications

• Bus organized system applications requiring data storage and buffering
• High-speed digital systems utilizing 5V logic families
• Applications demanding hot-insertion capability without device damage

Procurement Notes

Verify the specific package variant, as the CMTC suffix denotes the TSSOP form factor. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design margins account for the specified absolute maximum ratings to prevent device stress or failure under transient conditions.

Selection Notes

Select this component when a 5V logic interface with high drive strength is required. The ABT series offers faster propagation speeds compared to standard AC/ACT logic families. Verify that the application environment remains within the recommended operating temperature and voltage limits to maintain signal integrity and timing specifications.

Part Context

This device belongs to the 74ABT logic family, designed for high-speed CMOS applications. It serves as a direct replacement for older TTL-compatible devices while offering improved speed and lower power consumption characteristics suitable for modern digital bus architectures.

Replacement Considerations

Publicly confirmed substitute part numbers include SN74ABT373DW and SN74ABT373DWR from Texas Instruments.