SN74LS31NSR

Specialty Logic Overview

The SN74LS31NSR is an octal transparent latch manufactured by Texas Instruments, belonging to the SNx4LSxx series of logic devices. It features eight D-type latches with three-state outputs and a common enable input. The device is designed for bus-oriented applications, allowing data to be latched and held while providing high-impedance isolation when disabled. It operates within standard LSTTL voltage ranges and utilizes a 20-pin Small Outline (DW) surface-mount package.

Specialty Logic Feature Summary

• Provides eight independent transparent latches for parallel data storage
• Features three-state outputs to facilitate direct bus connections
• Includes a common enable input to control data transparency

Specialty Logic Applications

• Bus-oriented memory implementations
• Parallel-to-serial data conversion circuits
• Temporary data storage in digital systems

Specialty Logic Procurement Notes

Verify that the ordering suffix 'NSR' corresponds to the specified 20-pin SOIC package and tape-and-reel quantity. Confirm the manufacturer designation matches Texas Instruments specifications. Ensure the component meets the required operating temperature range for your specific application environment before finalizing procurement.

Specialty Logic Selection Notes

Select this component when designing systems requiring multiple parallel latches with bus-compatible outputs. It serves as a suitable alternative to other octal latches in the LS family. Consider power consumption and propagation delay characteristics relative to system timing requirements. Verify pin compatibility if replacing existing designs.

Specialty Logic Part Context

This part belongs to the widely used SNx4LSxx logic family, known for Low-power Schottky TTL performance. The octal latch configuration allows efficient handling of 8-bit data words. It complements other bus drivers and transceivers in complex digital architectures requiring reliable data retention and controlled output states.

Specialty Logic Replacement Considerations

Compatible substitutes include SN74LS31N and SN74LS31DR. Verify pinout and electrical parameters match before substitution.