SN74LS641DWRE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS641DWRE4 is an octal bus transceiver from the Texas Instruments SN74LS series. It features open-collector outputs and operates within a supply voltage range of 4.75 V to 5.25 V. The device supports bidirectional data transfer controlled by a single direction pin. It is housed in a 20-pin Small Outline Integrated Circuit (SOIC) package with a width of 7.50 mm. The component is rated for operation at temperatures between 0°C and 70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent bidirectional data channels
• Open-collector output structure suitable for wired-OR logic applications
• Single-direction control pin manages data flow between ports A and B

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data bus interfacing between microprocessors and peripheral devices
• Wired-OR logic implementation on shared communication lines
• Memory address decoding and data buffering in industrial control systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific orderable part number matches the required suffix, as variations exist for tape-and-reel packaging. Confirm RoHS compliance status and lead finish specifications against current manufacturer documentation before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when open-collector outputs are required for bus sharing or level shifting. Ensure the system operates within the specified 4.75 V to 5.25 V supply range. Verify that the 0°C to 70°C temperature rating meets environmental requirements for the target application.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LS64x family of octal bus transceivers. It shares functional similarities with the SN74LS640 but utilizes open-collector outputs instead of three-state outputs. The DWRE4 suffix indicates a specific tape-and-reel packaging variant manufactured by Texas Instruments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LS641DWR serves as a direct alternative with identical electrical characteristics and functionality.