SN74LVC245ANS

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC245ANS is an octal bus transceiver from the Texas Instruments LVC family, designed for asynchronous communication between data buses. It operates within a supply voltage range of 1.65 V to 3.6 V and features three-state outputs. The device supports mixed-mode signal operation, allowing inputs to accept voltages up to 5.5 V while powered by lower supply rails. It provides high drive capability with output currents reaching 24 mA at 3 V. The component includes Ioff circuitry to prevent back-driving during partial-power-down modes.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation on all ports
• Ioff circuitry prevents damaging current backflow
• Inputs accept voltages up to 5.5 V

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 package suffix 'NS' corresponds to the SOP (Small Outline Package) variant when sourcing. Confirm that the ordering suffix matches the required moisture sensitivity level and lead finish specifications listed in the manufacturer's orderable addendum. Ensure compatibility with the intended operating temperature range of -40°C to 125°C.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring bidirectional data transfer between buses operating at different voltage levels within the 1.65 V to 3.6 V range. The high input tolerance allows interfacing with 5 V logic without external level shifters. Consider the SOP-20 package dimensions and thermal characteristics relative to available PCB space and heat dissipation requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVC245A series of octal bus transceivers. It utilizes CMOS technology to provide balanced output drive and low power consumption. The LVC family is optimized for low-voltage operations while maintaining compatibility with standard digital logic interfaces found in modern embedded systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC245ADW

Buffers, Drivers, Receivers, Transceivers FAQ

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

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

Can this transceiver interface 5 V logic with 3.3 V logic?

Yes, the inputs accept voltages up to 5.5 V regardless of the VCC supply, making it suitable for translating signals from 5 V devices to 3.3 V or lower voltage buses.