SN74LVC8T245NSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC8T245NSR is an eight-bit non-inverting bus transceiver featuring configurable dual power supply rails for bidirectional voltage level translation. It operates with VCCA and VCCB set between 1.65V and 5.5V, enabling universal low-voltage translation between 1.8V, 2.5V, 3.3V, and 5V nodes. The device supports asynchronous communication via DIR and OE inputs, providing three-state outputs. It includes Ioff for partial-power-down mode and VCC isolation to prevent backflow current.

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
• Control inputs VIH/VIL levels are referenced to VCCA voltage
• VCC isolation feature disables all I/O outputs when either VCC input is below 100mV or left floating

Buffers, Drivers, Receivers, Transceivers Applications

• Personal electronics: sound bar, flat-panel monitor
• Industrial: PLC controller, CNC controller, ultrasound scanner
• Enterprise: high-performance computing, network attached storage
• Telecom: data center switch, baseband unit

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the NSR suffix indicates a tape-and-reel packaging format compatible with automated assembly equipment. Confirm that the specific lot traceability and manufacturing date codes align with project requirements. Ensure ESD handling protocols are strictly followed during storage and installation to maintain device integrity.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing systems operating at different interface voltages within the 1.65V to 5.5V range. It is suitable for applications requiring bidirectional data transfer with configurable direction control. Ensure unused I/Os are tied to GND to minimize power consumption and prevent floating states.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVC8T245 family of 8-bit dual-supply bus transceivers. It shares functional characteristics with other variants in the series but differs in package type and shipping configuration. The NSR designation specifically identifies the surface-mount TSSOP-24 package supplied in a reel format for high-volume production environments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC8T245PW

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial-power-down scenarios?

The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

What happens if one of the supply rails is disconnected?

If either VCC input is below 100mV or left floating, all I/O outputs are disabled and become high-impedance state.