74LVTH273MTCX

Overview

The Fairchild Semiconductor 74LVTH273MTCX is an octal D-type flip-flop with a clear input, belonging to the LVTH logic series. It features TTL-compatible inputs and outputs in a 20-lead TSSOP package. The device operates within a supply voltage range of 2.7 V to 3.6 V. Key electrical parameters include a maximum propagation delay of 3.2 ns at nominal supply, a low-level output current capability of 64 mA, and a high-level output current of -32 mA. It supports a load capacitance of 50 pF and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops within a single integrated circuit.
• TTL-compatible input and output characteristics ensuring interoperability with standard logic families.
• High drive strength capabilities suitable for bus-oriented memory addressing and data transmission applications.

Applications

• Bus-oriented memory addressing systems
• Data register storage circuits
• Parallel-to-serial conversion modules

Procurement Notes

Verify the manufacturer designation on the component marking against official Fairchild or onsemi documentation, as part numbers may be shared across entities. Confirm the specific suffix matches the required package type and lead finish. Ensure compliance with RoHS directives and check for any obsolescence notices or production lifecycle changes prior to final procurement decisions.

Selection Notes

Select this component when designing systems requiring octal storage with high current drive capabilities and TTL compatibility. The LVTH series is appropriate for applications needing robust signal integrity at 3.3 V logic levels. Consider the TSSOP-20 package constraints regarding thermal dissipation and PCB layout space compared to alternative packages like SOIC or QFP.

Part Context

This component belongs to the 74LVTH family of logic devices, which are designed for 3.3 V operation with TTL-compatible thresholds. The 74LVTH273 variant specifically provides octal D-type flip-flops with a clear function. It serves as a digital storage element in microprocessor-based systems, offering reliable data latching for bus architectures.

Replacement Considerations

Public confirmed substitute part numbers: SN74LVTH273PWR (Texas Instruments), SN74LVTH273DW (Texas Instruments). Verify pinout compatibility and electrical specifications before substitution.