SN74LS261D

Overview

The SN74LS261D is a 2-bit by 4-bit parallel binary multiplier from Texas Instruments, part of the LS TTL series. It operates within a supply voltage range of 2V to 6V and supports commercial temperature grades from -55°C to +85°C. The device features inverting polarity with specific input/output configurations typical of its logic family.

Feature Summary

• Performs parallel binary multiplication operations
• Compatible with standard LS TTL logic levels
• Designed for commercial industrial temperature environments

Applications

• Digital signal processing arithmetic units
• Embedded control systems requiring basic multiplication
• Educational logic circuit demonstrations

Procurement Notes

Verify RoHS compliance status as sources indicate non-compliance with certain directives. Confirm humidity sensitivity level (MSL 3) and REACH regulatory standing before integration. Ensure ordering suffix 'D' matches required SOIC-14 package specifications for your PCB layout.

Selection Notes

Select this component when a dedicated hardware multiplier is preferred over software implementation for latency reduction. Verify that the LS TTL speed and power consumption profiles align with system requirements. Check availability of alternative packages if surface mount constraints differ.

Part Context

This device belongs to the SN74LS series, a widely used line of low-power Schottky TTL logic devices. It provides standardized digital logic functions for general-purpose computing and control applications within the Texas Instruments portfolio.

Replacement Considerations

Check for direct pin-compatible equivalents within the same LS TTL family. Verify functional equivalence for 2x4 bit multiplication before substitution.