SN74AVC8T245PWE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AVC8T245PWE4 is an 8-bit dual-supply bus transceiver manufactured by Texas Instruments. It features configurable voltage-level shifting and 3-state outputs, designed for asynchronous data communication between buses operating at different voltage levels. The device supports a supply voltage range of 1.2V to 3.6V on both VCCA and VCCB rails. It operates within a temperature range of -40°C to +125°C and utilizes a 24-pin TSSOP package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configurable dual-rail design allows independent power supply settings for A and B ports across the full voltage range
• Supports bidirectional asynchronous data transfer controlled by DIR input logic levels
• Includes Ioff circuitry to disable outputs during partial power-down and prevent current backflow
• Provides VCC isolation functionality that forces all I/O ports into a high-impedance state if either supply rail drops to ground

Buffers, Drivers, Receivers, Transceivers Applications

• Voltage level translation between 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V nodes
• Asynchronous communication interfaces between devices with mismatched supply voltages
• Bus isolation in systems requiring partial power-down capabilities

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'E4' against the manufacturer's official documentation to confirm lead-free status and RoHS compliance details. Ensure the ordering part number matches the exact package variant required for your PCB footprint. Cross-reference the datasheet revision history to validate electrical characteristics and pinout configurations before finalizing procurement specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing logic families requiring flexible voltage translation without single-supply constraints. The dual-supply architecture enables optimized power consumption compared to fixed-voltage translators. Consider the propagation delay and drive strength requirements relative to the target bus speed and capacitive load to ensure signal integrity across the operating temperature range.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74AVC8T245 family of low-voltage bus transceivers. It serves as a bridge for mixed-voltage digital systems, replacing older single-supply solutions that lack configurable voltage shifting. The AVC series is engineered for high performance in portable and industrial applications where multiple voltage domains coexist.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AVC8T245PWRE4: Reel version of the same component; verify packaging preference.