SN74AVC4T245PWT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AVC4T245PWT is a 4-bit dual-supply noninverting bus transceiver with configurable voltage translation and 3-state outputs. It utilizes separate VCCA (1.2V to 3.6V) and VCCB (1.2V to 3.6V) rails for universal bidirectional translation between low-voltage nodes. The device supports maximum data rates up to 380Mbps during 1.8V to 3.3V translation. I/Os are 4.6V tolerant, and the Ioff circuit enables partial power-down mode by disabling outputs to prevent backflow current.

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 damaging current backflow
• Control input VIH/VIL levels are referenced to VCCA voltage

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific PW (TSSOP-16) package designation when ordering. Confirm that the application requires the standard SN74AVC4T245 functionality rather than the automotive-qualified SN74AVC4T245-Q1 variant if operating conditions exceed standard industrial limits. Ensure supply voltages remain within the 1.2V to 3.6V range for both VCCA and VCCB.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for asynchronous communication between two data buses requiring voltage level translation. It is suitable for interfaces where push-pull drivers connect to data I/Os. Consider the TSSOP-16 package for surface-mount assembly. Verify that the required data rate and voltage translation pairs fall within the specified operational characteristics of the standard device.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AVC4T245 family of 4-bit dual-supply bus transceivers. Other available packages include SOIC (D), TVSOP (DGV), WQFN (RGY), UQFN (RSV), and SOT (DYY). The PWT suffix specifically denotes the TSSOP-16 package type with tape-and-reel packaging.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AVC4T245PW

Buffers, Drivers, Receivers, Transceivers FAQ

How does the Ioff feature function?

The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is in a partial-power-down state.

What determines the direction of data transmission?

The logic levels of the direction-control (DIR) input activate either the B-port outputs or the A-port outputs. A high DIR transmits from A to B, while a low DIR transmits from B to A.