SN74ABT646ADBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT646ADBR is an octal bus transceiver and register manufactured by Texas Instruments, belonging to the ABT logic series. It features BiCMOS technology with three-state outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides a propagation delay of 5.1 ns, with low-level output current capability of 64 mA and high-level output current of -32 mA. It supports TTL input and output levels and functions in non-inverting mode across an operating temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal Bus Transceiver and Register Functionality
• Three-State Output Capability
• BiCMOS Technology Implementation

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data bus systems
• Memory interface circuits
• Buffering applications requiring bidirectional control

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DBR' corresponds to the SSOP-20 package and tape-and-reel orientation as documented in official Texas Instruments datasheets. Confirm RoHS compliance status and ensure the component matches the exact part number for design compatibility. Cross-reference ordering information with authorized distributors to validate authenticity and manufacturing origin.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring simultaneous bus driving and latching capabilities. The ABT series offers improved speed over standard 74F logic while maintaining low power consumption. Ensure the application environment stays within the specified -40°C to +85°C temperature range and that the 4.5 V to 5.5 V supply voltage constraints are met for reliable operation.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the SN74ABT646 family, which includes variants such as SN74ABT646ADW (SOIC-24) and SN74ABT646PW (TSSOP-24). These components share identical electrical characteristics but differ in physical packaging. The ABT series represents a high-performance BiCMOS logic line designed for demanding digital applications requiring fast switching speeds and robust drive capabilities.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ABT646ADW and SN74ABT646PW serve as functional equivalents with identical electrical specifications but utilize different packages.