SN74ABT646ADW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ABT646ADW is an octal bus transceiver and register manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features three-state outputs. The device utilizes BiCMOS technology and belongs to the ABT logic series. It provides non-inverting data transfer with independent direction control. Key electrical parameters include a propagation delay of 5.1 ns, a low-level output current of 64 mA, and a high-level output current of -32 mA. The maximum power supply current is 30 mA. It functions reliably across an operating temperature range from -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal registered bus transceiver with three-state outputs for efficient bidirectional data transfer
• Independent direction control allows flexible data flow management between ports
• High drive capability supports heavy loads with significant output current capacity
• Compatible TTL input and output levels simplify interface design

Buffers, Drivers, Receivers, Transceivers Applications

• Mobile applications requiring high-speed data transmission
• Clock drivers and buffered oscillators
• Memory mapping controllers
• Capacitively loaded outputs and driving bus lines

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix to confirm package type and tape-and-reel versus tube packaging. Ensure the component meets RoHS compliance requirements for your assembly process. Confirm the manufacturer date code and lot traceability if required for quality assurance. Check for any specific handling instructions related to electrostatic discharge protection during storage and installation.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal configuration with registered outputs is necessary for system synchronization. The ABT series offers superior speed compared to standard ALS counterparts while maintaining compatible pinouts. Consider the 5.5 V maximum rating and ensure the system power supply remains within specified limits. Evaluate the thermal performance under continuous load conditions given the 30 mA maximum supply current.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ABT646A family of octal bus transceivers. It shares functional similarities with other ABT series devices but is distinct in its eight-bit width and registered architecture. The DW suffix indicates a 24-pin SOIC package. It serves as a bridge between microprocessors and peripheral devices in complex digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ABT646DW

Buffers, Drivers, Receivers, Transceivers FAQ

What is the polarity of the data transfer?

The SN74ABT646ADW provides non-inverting data transfer.

Does the device support independent direction control?

Yes, the device features independent direction control for each port.