SN74AVCH8T245PWG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AVCH8T245PWG4 is an 8-bit dual-supply bus transceiver from Texas Instruments, designed for asynchronous communication between data buses. It features configurable voltage translation capabilities, allowing operation across multiple voltage nodes including 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. The device supports a maximum data rate of 320 Mbps when both VCCA and VCCB are at least 1.8V. It utilizes a TSSOP-24 package with a propagation delay of 2.5 ns and operates within a temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configurable dual-rail design enabling universal low-voltage bidirectional translation between independent power rails.
• I/O pins tolerate voltages up to 4.6 V, providing robust interface capability for mixed-voltage systems.
• Supports local shutdown mode via Ioff circuitry to prevent excessive current draw during partial power-down scenarios.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication interfaces between data buses operating at different logic levels.
• Voltage translation between 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V system nodes.
• General-purpose bidirectional level shifting in embedded and industrial control systems.

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's current product status, as it may indicate RoHS compliance or end-of-life status. Confirm that the TSSOP-24 package matches your PCB footprint requirements. Ensure supply chain sources provide original manufacturer documentation to validate authenticity and technical specifications before integration into designs.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring bidirectional data transfer between buses with differing voltage supplies. It is suitable for applications needing high-speed translation up to 320 Mbps. Consider the 4.6 V tolerance if interfacing with higher voltage peripherals. Evaluate the thermal performance within the specified -40°C to +85°C range for your operational environment.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AVCH8T245 family of 8-bit bus transceivers. It shares functional similarities with other members like SN74AVC8T245 but includes enhanced H (High Voltage) characteristics for improved I/O tolerance. The PWG4 designation specifies the TSSOP-24 package and Green/RoHS-compliant manufacturing process.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AVCH8T245DGVRG4: Pin-compatible alternative in TVSOP-24 package. SN74AVCH8T245RHLRG4: Pin-compatible alternative in VQFN-24 package. Verify package dimensions and thermal properties when substituting.