SN74LVCZ245ADBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCZ245ADBR is an octal bus transceiver with three-state outputs designed for 1.65 V to 3.6 V operation. It facilitates asynchronous communication between data buses, directing data flow from port A to B or vice versa based on the direction control input. The output enable input isolates the device when disabled. Designed for mixed 3.3/5 V systems, it accepts inputs up to 5.5 V and supports voltage translation. The component includes IOFF circuitry to prevent current damage during partial power-down and ensures high-impedance states during power transitions.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports real-time insertion and partial power-down modes via integrated IOFF circuitry
• Enables downward voltage translation while accepting 5.5 V tolerant inputs
• Allows mixed-mode signal operation across all ports within the specified voltage range

Buffers, Drivers, Receivers, Transceivers Applications

• Industrial control systems requiring robust bus interfacing
• Communication and network infrastructure equipment
• Motor drive and control applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DBR' against the manufacturer's official datasheet to confirm the SSOP-20 package type and tape-and-reel packaging configuration. Ensure the design accounts for the required pull-up resistor on the OE pin to maintain high-impedance states during power cycles. Confirm that the system environment aligns with the specified operating temperature range and voltage constraints before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring bidirectional data transfer between 1.65 V and 3.6 V domains with mixed 5 V compatibility. It is suitable for applications needing protection against back-driving currents during partial power-down scenarios. Consider the SSOP-20 package dimensions and thermal characteristics relative to the PCB layout requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments SN74LVCZ series, which features low-voltage CMOS technology optimized for 1.65 V to 3.6 V operation. The LVCZ family distinguishes itself by supporting partial power-down modes and providing enhanced robustness for mixed-voltage environments compared to standard LVC counterparts.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial power-down conditions?

The integrated IOFF circuit automatically disables the outputs to prevent damaging back-driving currents from flowing through the device when VCC is partially powered down.

Can this transceiver interface with 5 V logic devices?

Yes, the inputs are designed to accept voltages up to 5.5 V, allowing the device to function as a converter in mixed 3.3 V and 5 V system environments.