SN74LVC245ADB

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC245ADB 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-mode 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 asynchronous communication between data buses using a single-direction control input
• Accepts input voltages up to 5.5 V while operating at lower supply voltages
• Includes Ioff circuitry to prevent damaging backflow current during power-down conditions
• Enables effective bus isolation through an output-enable input

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 'DB' corresponds to the SSOP-20 form factor required for your design. Confirm RoHS compliance status and lead finish details via the manufacturer's orderable addendum. Ensure the selected variant matches the required temperature range and moisture sensitivity level for your assembly process.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing 8-bit buses requiring high drive capability and low power consumption. The LVC series is suitable for applications needing balanced output drive and fast switching speeds within the 1.65-V to 3.6-V range. Consider the SSOP-20 package dimensions if space constraints are present.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the Texas Instruments SN74LVC245A family of octal bus transceivers. The family offers various package options including SOIC, TSSOP, and VQFN. The SN74LVC245A provides a standard non-inverting buffer function with three-state outputs, widely used in digital logic interfaces.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC245ADBR

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 part.

Can this device translate signals from 5-V logic?

Yes, the inputs accept voltages up to 5.5 V, allowing the device to be driven by 3.3-V or 5-V devices even when operating at lower VCC levels.