74LCXZ162244MTX

Overview

The onsemi 74LCXZ162244MTX is a low-voltage CMOS 16-bit buffer and line driver featuring 5V tolerant inputs and outputs. It operates within a supply voltage range of 2.7V to 3.6V and utilizes a 48-lead Thin Shrink Small Outline Package (TSSOP). The device incorporates nibble control for independent operation or full 16-bit functionality, with integrated series resistors in the outputs designed to reduce signal overshoot and undershoot.

Feature Summary

• Features 5V tolerant inputs and outputs for direct interfacing with 5V signal environments while operating at lower voltages.
• Includes built-in series resistors in the output paths to minimize signal overshoot and undershoot during high-speed transitions.
• Provides guaranteed high impedance state during power-up and power-down sequences to prevent bus loading issues.

Applications

• Memory address drivers
• Clock drivers
• Bus-oriented transmitter/receiver circuits

Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the datasheet lists multiple variants including SSOP and TSSOP options. Confirm the presence of the 'MTX' suffix indicates the tape and reel packaging format. Ensure compatibility with the 2.7V to 3.6V operating voltage range for your target application design.

Selection Notes

Select this component when a 16-bit non-inverting buffer with 5V tolerance is required. The integrated series resistors make it suitable for applications needing reduced EMI and signal integrity improvements without external components. Consider the nibble control architecture if independent 4-bit section management is necessary.

Part Context

This part belongs to the LCXZ family of low-voltage CMOS logic devices. It is functionally similar to other 16-bit buffers but distinguished by its specific inclusion of output series resistors and 5V tolerance capabilities. The device is manufactured using advanced CMOS technology to balance high-speed performance with low power dissipation.

Replacement Considerations

Check for equivalent parts from other manufacturers offering 16-bit buffers with 5V tolerance and integrated output resistors. Verify pinout compatibility and electrical specifications such as propagation delay and drive current before substitution.

FAQ

How does the device handle power-up and power-down states?

When VCC is between 0 and 1.5V, the device enters a high impedance state, preventing intermittent low impedance loading or glitching in bus-oriented applications.

What is the purpose of the series resistors in the outputs?

The outputs include nominal 26/58 ohm series resistors designed to reduce overshoot and undershoot, implementing patented noise and EMI reduction circuitry.