SN74LVC245ADWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC245ADWR is an octal bus transceiver with three-state outputs manufactured by Texas Instruments. It operates from a supply voltage of 1.65 V to 3.6 V and features inputs that accept voltages up to 5.5 V, enabling mixed-mode signal operation. The device supports asynchronous communication between data buses with a maximum propagation delay of 6.3 ns at 3.3 V. It includes Ioff circuitry for partial-power-down mode and back drive protection. The component is housed in a 20-pin SOIC package and functions within a temperature range of -40°C to 125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports bidirectional data transmission between two 8-bit buses controlled by a direction input.
• Provides high drive capability suitable for PCB trace length extensions and bus interface applications.
• Features overvoltage tolerant inputs allowing compatibility with 5-V devices while operating at lower supply voltages.

Buffers, Drivers, Receivers, Transceivers Applications

• Cable modem termination systems
• Servers
• LED displays
• Network switches
• I/O expanders

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DW' corresponds to the SOIC-20 package variant. Confirm RoHS compliance status and lead finish details via the manufacturer's latest orderable addendum. Ensure the procurement channel provides valid production data documentation matching the SCAS218X datasheet revision.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring low-voltage operation down to 1.65 V combined with 5-V input tolerance. It is appropriate for applications needing balanced output drive and isolation capabilities. Consider the thermal resistance characteristics of the SOIC-20 package for heat dissipation requirements in dense layouts.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC245A family of octal bus transceivers. It shares functional specifications with other packages in the series, such as SSOP and TSSOP variants, but differs in physical dimensions and thermal metrics. The 'ADWR' designation specifically identifies the active production SOIC-20 reel version.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC245ADW

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle power-down conditions?

The device utilizes Ioff circuitry to disable outputs during partial-power-down modes, preventing damaging current backflow through the device when it is powered down.

What is the function of the OE pin?

The Output Enable (OE) input disables the device when high, effectively isolating the buses. When low, the device operates based on the DIR input state.