SN74AVC4T245PW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AVC4T245PW is a 4-bit dual-supply bus transceiver with configurable voltage-level shifting and 3-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 1.2V to 3.6V for both VCCA and VCCB rails. The device supports asynchronous communication between two data buses with maximum data rates up to 380Mbps when translating from 1.8V to 3.3V. Propagation delay is typically 2.9ns at 3.3V. It features I/Os that are 4.6V tolerant and includes Ioff circuitry for partial power-down mode operation.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Fully configurable dual-rail design allows each port to operate over the full 1.2V to 3.6V power-supply range
• I/Os are 4.6V tolerant for interfacing with higher voltage systems
• Ioff supports partial power-down mode operation to prevent backflow current
• Control inputs VIH/VIL levels are referenced to VCCA voltage

Buffers, Drivers, Receivers, Transceivers Applications

• Personal electronics
• Industrial applications
• Enterprise systems
• Telecommunications equipment

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type matches the required PCB footprint, as the SN74AVC4T245 family is available in multiple packages including SOIC, TVSOP, TSSOP, WQFN, UQFN, and SOT. Confirm that the ordering suffix corresponds to the desired packaging format, such as tube or tape-and-reel, before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional level translation is required between different low-voltage nodes such as 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. Ensure the application requires 3-state outputs and benefits from the Ioff feature for partial power-down scenarios. Verify that the operating temperature range of -40°C to +85°C meets the system environmental requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74AVC4T245 series of 4-bit dual-supply bus transceivers. It is part of Texas Instruments' AVC logic family, designed for high-speed asynchronous communication. The PW suffix specifically denotes the 16-pin Thin-Shrink Small-Outline Package (TSSOP), which offers a compact form factor suitable for space-constrained designs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AVC4T245DT

Buffers, Drivers, Receivers, Transceivers FAQ

How does the Ioff feature function?

The Ioff circuitry disables the I/O output circuits when the device is in partial-power-down mode, preventing damaging current backflow through the device.

What is the maximum data rate supported?

The maximum data rate is 380Mbps when translating signals from 1.8V to 3.3V.