SN74AVC4T245PWRG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AVC4T245PWRG4 is a 4-bit dual-supply noninverting bus transceiver with configurable voltage translation and 3-state outputs. It operates within a supply voltage range of 1.2V to 3.6V on both VCCA and VCCB rails. The device supports asynchronous communication between two data buses, featuring maximum data rates up to 380Mbps for 1.8V to 3.3V translation. It includes Ioff circuitry for partial power-down mode and provides ESD protection exceeding JESD 22 standards.

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 and support high-speed translation applications
• Ioff circuitry disables outputs to prevent damaging current backflow during partial power-down
• Control input logic levels are referenced to the VCCA voltage

Buffers, Drivers, Receivers, Transceivers Applications

• Personal electronics
• Industrial automation
• Enterprise systems
• Telecommunications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the package type matches the PW (TSSOP-16) designation in the ordering suffix. Confirm RoHS compliance and Green product status (no Sb/Br) as specified by the G4 suffix. Ensure the component meets the recommended operating conditions for VCCA and VCCB voltages before integration into the target system design.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing devices requiring bidirectional level translation between different low-voltage nodes such as 1.2V, 1.8V, 2.5V, and 3.3V. The device is suitable for applications needing push-pull drivers connected to data I/Os. Consider the TSSOP-16 package constraints and thermal characteristics if space or heat dissipation is a primary design factor.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AVC4T245 family of dual-bit bus transceivers. The PWRG4 suffix indicates a specific tape-and-reel packaging configuration in the PW (TSSOP-16) package. It shares functional specifications with other variants like SN74AVC4T245DT and SN74AVC4T245RGYR, differing primarily in physical package dimensions and manufacturing lot codes.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AVC4T245DT

Buffers, Drivers, Receivers, Transceivers FAQ

How does the OE pin function during power-up?

To ensure outputs remain in a high-impedance state during power-up or power-down, the OE input must be tied to VCCA through a pullup resistor. This prevents enabling the outputs until VCCA and VCCB are fully ramped and stable.

What is the purpose of the Ioff feature?

The Ioff feature supports partial-power-down mode operation. It disables the I/O output circuits to prevent backflow current through the device when it is powered down, protecting the system from damage.