SN74LVC8T245PW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC8T245PW is an 8-bit non-inverting bus transceiver with configurable dual power supply rails and 3-state outputs, manufactured by Texas Instruments. It operates within a voltage range of 1.65V to 5.5V on both VCCA and VCCB ports. The device supports bidirectional data transmission between two buses using DIR and OE control inputs. It features robust glitch-free power sequencing, partial-power-down mode via Ioff, and high ESD protection exceeding 4000V HBM. Packaged in a 24-pin TSSOP, it ensures reliable asynchronous communication across various logic levels.

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 enables either supply rail to be powered on or off in any order without producing glitches
• Ioff circuitry supports partial-power-down mode operation by disabling outputs to prevent damaging current backflow
• 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
• Computing: network attached storage
• Telecom: data center switch, baseband unit

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package suffix 'PW' corresponds to the 24-pin TSSOP form factor required for your PCB layout. Confirm that the operating temperature range of -40°C to +85°C meets your environmental specifications. Ensure that the 1.65V to 5.5V supply voltage compatibility aligns with your system's VCCA and VCCB rails. Check for any recent documentation updates or PCNs that may affect pin marking or manufacturing location.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing systems requiring bidirectional translation between different low-voltage nodes such as 1.8V, 2.5V, 3.3V, and 5V. The dual-supply architecture allows independent voltage configuration for A and B ports. Consider the 3-state output capability for bus sharing applications. Ensure unused I/O pins are tied to GND or VCCI to minimize power consumption and prevent floating inputs.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVC8T245 family of 8-bit translating transceivers. It is part of Texas Instruments' LVC logic series, designed for low-voltage CMOS applications. The PW suffix indicates the TSSOP-24 package variant. Similar devices in the family include variants with different packaging options like SSOP or VQFN, but share identical electrical characteristics and functionality.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC8T245PWR is a parameter-equivalent alternative from Texas Instruments, differing primarily in tape-and-reel packaging instead of tube.