SN74LVCZ245ADWE4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCZ245ADWE4 is an octal bus transceiver with three-state outputs designed for 2.7-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 direction-control (DIR) input logic level. The device supports mixed-mode signal operation, allowing inputs to be driven by either 3.3-V or 5-V devices. It features Ioff and power-up three-state support for hot-insertion applications. The maximum propagation delay is 6.3 ns at 3.3 V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation on all ports, enabling compatibility with 5-V input/output voltage while operating with a 3.3-V supply.
• Includes Ioff circuitry that disables outputs to prevent damaging current backflow when the device is powered down.
• Features power-up three-state circuitry that places outputs in a high-impedance state during power transitions to prevent driver conflict.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• Hot-insertion applications requiring isolation during power cycles
• Mixed-mode signal translation in systems combining 3.3-V and 5-V logic levels

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type and marking code against the datasheet ordering information to ensure correct identification. Confirm that the component meets the required operating temperature range of -40°C to 85°C. Check RoHS compliance status and lead finish specifications as listed in the package option addendum. Ensure the part number suffix corresponds to the desired packaging format before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bidirectional data transfer is required between two 8-bit buses within a 2.7-V to 3.6-V supply environment. It is suitable for designs needing tolerance to 5-V input signals without external level shifters. Consider its propagation delay characteristics for timing-critical paths. Evaluate the thermal impedance of the SOIC-20 package if operating near the upper temperature limits.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVCZ245A family of octal bus transceivers manufactured by Texas Instruments. It is part of the broader LVC logic series, which provides low-voltage CMOS performance. The ADWE4 designation indicates a specific manufacturing variant within the standard product line, typically associated with the SOIC-20 package configuration.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVCZ245ADWR is a compatible alternative offering identical electrical specifications but supplied in a tape-and-reel format instead of a tube.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle hot-insertion scenarios?

The device utilizes Ioff circuitry to disable outputs and prevent backflow current when powered down, along with power-up three-state circuitry to maintain high-impedance states during power transitions.

Can this transceiver interface directly with 5-V logic devices?

Yes, the inputs accept voltages up to 5.5 V, allowing it to operate in mixed-mode environments where it interfaces with 5-V devices while running on a 3.3-V supply.