SN74LVC245ADW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC245ADW is an octal bus transceiver with three-state outputs designed for 1.65-V to 3.6-V VCC operation. It facilitates asynchronous communication between data buses, transmitting data from the A bus to the B bus or vice versa based on the logic level at the direction-control (DIR) input. The device features inputs that accept voltages up to 5.5 V, enabling down voltage translation in mixed 3.3-V/5-V systems. It includes Ioff circuitry to support live insertion and partial-power-down modes by disabling outputs during power-off states.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation on all ports, allowing 5-V input/output voltage compatibility with a 3.3-V VCC supply.
• Ioff circuitry disables outputs to prevent damaging current backflow through the device when it is powered down.
• Inputs are overvoltage tolerant, accepting voltages up to 5.5 V at any valid VCC.

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 type and suffix against the manufacturer's orderable addendum to ensure correct physical dimensions and pinout compatibility. Confirm RoHS compliance status and lead finish specifications required for your assembly process. Check the moisture sensitivity level rating to determine storage and handling requirements before soldering.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring high drive capability and balanced output drive for bus interface designs. Ensure the design accounts for fast edges into light loads to prevent ringing. Verify that input conditions meet the specified rise and fall time requirements and that output load currents do not exceed maximum limits per output.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVC245A family of octal bus transceivers. It is manufactured using CMOS technology and is available in multiple packages including SOIC, SSOP, TSSOP, and VQFN. The family is designed for low-voltage operations and provides robust performance for data bus communication in various electronic systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC245ADWRG4

Buffers, Drivers, Receivers, Transceivers FAQ

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

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

What is the function of the OE input?

The output-enable (OE) input can be used to disable the device so the buses effectively are isolated.