SN74LVTH646DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH646DW is an octal bus transceiver and register from Texas Instruments, belonging to the LVTH logic series. It features three-state outputs and operates within a supply voltage range of 2.7 V to 3.6 V. The device provides non-inverting data transmission with a propagation delay of 5.1 ns at 3.3 V. It supports LVTTL input and output levels, offering a low-level output current of 64 mA and a high-level output current of -32 mA. Packaged in a 20-pin SOIC format, it functions as both a bus transceiver and a register for bidirectional data communication.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Integrates octal bus transceiver and register functionality for efficient data handling
• Provides tri-state outputs to facilitate multiple driver connections on a bus
• Supports LVTTL logic levels for compatibility with low-voltage systems

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data communication on system buses
• Memory mapping applications requiring address/data multiplexing
• Clock drivers and buffer circuits in low-voltage digital systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant against the datasheet, as the 'DW' suffix indicates a 20-pin SOIC tube. Confirm that the operating voltage requirements align with the 2.7 V to 3.6 V specification. Ensure that the LVTTL input thresholds are compatible with the driving source logic levels in the target application design.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal transceiver with integrated latching capability is required for 3.3 V systems. Compare propagation delays and drive strengths against other LVTH or ABT series alternatives if higher speed or different voltage compatibility is needed. Verify pinout compatibility with existing PCB layouts before substitution.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVTH646 family of low-voltage transistor-transistor logic devices. It is functionally similar to the SN74ABT646 but optimized for lower voltage operation. The device serves as a key interface component in digital designs requiring isolated bidirectional data paths with storage capabilities.