74LCXH16245G

Overview

The onsemi 74LCXH16245G is a low voltage 16-bit bidirectional transceiver with bus hold functionality. It features non-inverting buffers and three-state outputs designed for bus-oriented applications. The device operates at supply voltages from 2.3V to 3.6V, enabling interfacing with 5V signal environments. It utilizes advanced CMOS technology for high-speed operation while maintaining low power dissipation. Each byte has separate control inputs that can be shorted for full 16-bit operation. The package is a 54-ball Fine-Pitch Ball Grid Array (FBGA).

Feature Summary

• Active bushold circuitry eliminates the need for external pull-up or pull-down resistors.
• Implements patented noise and EMI reduction circuitry.
• Provides power-down high impedance outputs.
• Latch-up performance conforms to JESD78 requirements.

Applications

• Bus oriented applications requiring 16-bit data transfer.
• Interfacing low voltage logic to 5V signal environments.
• Byte-controlled data routing in electronic systems.

Procurement Notes

Verify the specific ordering suffix 'G' indicates tray packaging when sourcing this component. Confirm the manufacturer origin, as the datasheet references Fairchild Semiconductor Corporation specifications which may apply to current production entities. Ensure compatibility with the 54-ball FBGA footprint during procurement planning.

Selection Notes

Select this component for designs requiring 16-bit bidirectional data flow with bus hold capabilities. It supports operating temperatures from -40°C to +85°C. Consider the 54-ball FBGA package constraints for PCB layout. Verify input voltage levels match the specified ranges for the target supply voltage.

Part Context

This part belongs to the LCXH family of low voltage CMOS logic devices. It provides 16-bit bidirectional buffering with three-state outputs. The device is intended for applications needing interface between different voltage domains while maintaining signal integrity through bus hold features.

Replacement Considerations

Check for equivalent parts in the same logic family with compatible pinouts. Verify if alternative packages like TSSOP are available if the FBGA form factor is unsuitable. Ensure replacement parts maintain the required bus hold functionality and voltage specifications.

FAQ

What is the function of the bushold feature?

The active bushold circuitry holds unused or floating data inputs at a valid logic level, eliminating the need for external pull-up or pull-down resistors.

How does the device handle direction control?

The T/R inputs determine the direction of data flow through the device, allowing byte-controlled or full 16-bit operation depending on how the control inputs are connected.