SN74HC646DWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74HC646DWR is an octal bus transceiver from the Texas Instruments HC logic series, housed in a 20-pin SOIC package. It features three-state outputs and operates within a supply voltage range of 2 V to 6 V. The device provides a propagation delay of 22 ns and supports low-level output currents of 6 mA and high-level output currents of -6 mA. It functions as a non-inverting transceiver with CMOS input and output levels, operating reliably between -40°C and +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent bidirectional data paths for efficient system integration
• Three-state outputs enable direct connection to bus lines without additional interface hardware
• Non-inverting polarity maintains signal integrity across all eight channels

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and register implementations
• Control signaling between logic circuits
• Data transmission on multiple buses

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the component matches the specified SN74HC646DWR part number exactly. Confirm the manufacturer is Texas Instruments and check for RoHS compliance status. Ensure the package type corresponds to SOIC-20 and validate the operating temperature range requirements against your specific application needs before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal non-inverting bus transceiver with three-state outputs is required. It is suitable for applications needing bidirectional data transfer with minimal propagation delay. Consider the 2 V to 6 V supply range and CMOS compatibility for interfacing with other logic families in your design.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74HC646 family of octal bus transceivers. It is designed for high-speed digital applications requiring reliable data transmission across multiple lines. The HC series ensures compatibility with standard CMOS logic systems while offering robust performance characteristics.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74HC646NTE4 is listed as a similar alternative by Texas Instruments.