74LCXH16245MTD

Overview

The onsemi 74LCXH16245MTD is a low voltage 16-bit bidirectional transceiver with bus hold functionality. It features 3-state outputs and operates within a supply voltage range of 2.0V to 3.6V. The device supports byte-controlled operation via separate control inputs for each byte, allowing full 16-bit operation when shorted. Propagation delay is specified at a maximum of 4.5 ns at 3.3V and 5.2 ns at 2.7V. Output drive capability reaches -/+24 mA at VCC of 3.0V or higher. The component utilizes advanced CMOS technology for high-speed performance with low power dissipation.

Feature Summary

• Integrates active bus hold circuitry on data inputs to maintain valid logic levels without external pull-up resistors
• Provides non-inverting bidirectional buffering with 3-state outputs for bus-oriented applications
• Supports interface between low voltage (2.5V/3.3V) systems and 5V signal environments
• Implements patented noise and EMI reduction circuitry for improved signal integrity

Applications

• Bus oriented applications requiring 16-bit data transfer
• Interfacing low voltage logic devices with 5V signal environments
• Byte-controlled data routing in embedded systems

Procurement Notes

Verify the specific ordering suffix to confirm package type and tape/reel configuration. The MT designation indicates a 48-lead Thin Shrink Small Outline Package. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the source document matches the manufacturer's current datasheet specifications before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring 16-bit bidirectional data flow with integrated bus hold capabilities. The LCXH series is suitable for low voltage applications ranging from 2.0V to 3.6V. Consider the TSSOP-48 package for surface mount implementations. Verify that the propagation delay and output drive current meet the system timing and load requirements.

Part Context

This part belongs to the LCXH family of low voltage CMOS logic devices. It is functionally similar to other 16-bit bus transceivers but includes unique bus hold features. The device was originally manufactured by Fairchild Semiconductor and is now part of the onsemi portfolio. It serves as a standard solution for parallel data bus interfacing in consumer and industrial electronics.

Replacement Considerations

Check for direct pin-compatible substitutes within the same logic family. Verify that alternative parts support the required 2.0V to 3.6V operating range and 24 mA output drive. Ensure replacement components also include bus hold functionality if floating inputs are present in the design.