SN74ABT640PW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT640PW is an octal bus transceiver manufactured by Texas Instruments, belonging to the ABT logic series. It features eight independent bidirectional data channels with three-state outputs housed in a TSSOP-20 package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL input and output levels. Key electrical specifications include a propagation delay of 4.9 ns, a low-level output current of 64 mA, and a high-level output current of -32 mA. It functions as an inverting transceiver with a maximum power supply current of 30 mA and is rated for operation between -40°C and +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight independent bidirectional data paths for efficient bus management
• Features three-state outputs to prevent bus contention during inactive states
• Supports TTL-compatible input and output signal levels for system integration

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed data transmission on parallel buses
• Buffering and driving bus lines in digital systems
• Bidirectional data flow control in memory interfaces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'PW' corresponds to the TSSOP-20 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the operating temperature range meets the application requirements. Cross-reference the datasheet revision to confirm pinout and electrical characteristics match the design specifications before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring fast switching speeds and high drive capability within a 5V logic environment. The ABT technology offers superior performance compared to standard HC series devices. Consider the TSSOP-20 package constraints regarding PCB space and thermal dissipation. Verify that the required propagation delay and output current capabilities align with the system's timing and load requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ABT640 family of octal bus transceivers from Texas Instruments. It shares functional similarities with other variants like SN74ABT640DWR but differs in packaging. The ABT series utilizes Advanced BiCMOS technology to achieve high speed and low power consumption. It serves as a standard solution for managing multiple data lines in complex digital circuits.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ABT640DWR is a confirmed substitute offering identical functionality in a SOIC-20 package. SN74ABT640DBR provides the same electrical characteristics in an SSOP-20 package. These alternatives maintain compatibility with the original design while accommodating different footprint requirements.