SN74LVC646APWT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC646APWT is a registered octal bus transceiver and register with three-state outputs manufactured by Texas Instruments. It operates from a supply voltage of 1.65 V to 3.6 V and features inputs that accept voltages up to 5.5 V, supporting partial-power-down mode via Ioff. The device utilizes a 24-TSSOP package and provides low-level output current of 24 mA and high-level output current of -24 mA. It functions within an operating temperature range of -40°C to +125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Registered octal bus transceiver functionality with three-state outputs
• Ioff support enables partial-power-down mode operation
• Input compatibility with 5.5 V signals while operating at lower supply voltages

Buffers, Drivers, Receivers, Transceivers Applications

• Portable systems requiring low power consumption
• Battery-powered equipment
• Consumer electronics with multiple voltage domains

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'PWT' corresponds to the 24-TSSOP package and reel packaging configuration. Confirm RoHS compliance status through official documentation. Ensure the operating temperature grade matches the application requirements, as industrial grades may differ. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and revision history before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring bidirectional data transfer between buses operating at different voltage levels. The 5.5 V tolerant inputs allow interfacing with legacy 5 V logic without level shifters. Consider the 24-TSSOP package constraints for PCB layout. Verify that the 1.65 V minimum supply voltage meets the system's lowest power state requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC646A family of registered bus transceivers. It is designed for high-speed data transmission in low-voltage applications. The device integrates latching registers to hold data during bus transitions, ensuring stable communication. It is commonly used in embedded systems where space and power efficiency are critical design parameters.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC646APWR is a pin-compatible alternative with similar electrical characteristics but potentially different packaging or tape-and-reel specifications. Verify functional equivalence and package dimensions before substitution.