SN74LVC8T245PWG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC8T245PWG4 is an eight-bit non-inverting bus transceiver with configurable dual power supply rails enabling bidirectional voltage level translation. It operates with VCCA and VCCB set between 1.65V and 5.5V, supporting universal low-voltage translation between 1.8V, 2.5V, 3.3V, and 5V nodes. The device features three-state outputs, robust glitch-free power sequencing, and Ioff for partial-power-down mode. Control inputs are referenced to VCCA. It provides high drive capability with output currents up to 32mA at 5V and includes VCC isolation to force high-impedance states if either supply drops below 100mV.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Fully configurable dual-rail design allows each port to operate over the full 1.65V to 5.5V power-supply range
• Robust, glitch-free power supply sequencing ensures reliable operation during power transitions
• Ioff supports partial-power-down mode operation by disabling outputs to prevent backflow current
• VCC isolation feature forces all I/O outputs to a high-impedance state if either supply falls below 100mV

Buffers, Drivers, Receivers, Transceivers Applications

• Personal electronics such as sound bars and flat-panel monitors
• Industrial applications including PLC controllers, CNC controllers, and ultrasound scanners
• Enterprise computing and network attached storage systems
• Telecom infrastructure like data center switches and baseband units

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the ordering suffix G4 indicates compliance with RoHS 3 standards and confirms lead-free manufacturing. Confirm the package type matches the required TSSOP-24 footprint dimensions of 7.8mm by 6.4mm. Ensure the operating temperature range meets system requirements of -40°C to +85°C. Check for specific ESD protection ratings against JESD 22 standards if handling sensitivity is critical.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing systems requiring asynchronous communication between buses operating at different voltage levels within the 1.65V to 5.5V range. It is suitable for designs needing bidirectional data transfer with configurable direction control via the DIR pin. Consider its high drive strength for driving larger loads or connecting multiple outputs for increased drive capability. Ensure unused I/Os are tied to logic levels to minimize power consumption.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC8T series of 8-bit dual-supply bus transceivers from Texas Instruments. It is designed for low-voltage CMOS technology, offering compatibility with various logic families. The PWG4 suffix denotes a TSSOP package with green molding compound and RoHS 3 compliance. It serves as a bridge for digital signals in mixed-voltage environments common in modern embedded systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC8T245PW is a parameter-equivalent alternative available from Texas Instruments. Verify that any substitute maintains the same TSSOP-24 package dimensions and electrical characteristics. Ensure the replacement supports the required 1.65V to 5.5V operating range and glitch-free sequencing features.