74LCXH16244GX

Overview

The Fairchild Semiconductor 74LCXH16244GX is a low voltage 16-bit buffer and line driver featuring five-volt tolerant inputs and outputs. It operates within a supply voltage range of 2.3V to 3.6V, providing high-speed performance with a maximum propagation delay of 4.5ns at 10µA quiescent current. The device supports an output drive current of 24mA at VCC 3.0V and utilizes patented noise and EMI reduction circuitry. Designed for memory, address, clock drivers, or bus-oriented transmitter/receiver applications, it features nibble-controlled three-state outputs and supports live insertion and withdrawal.

Feature Summary

• Features five-volt tolerant inputs and outputs for direct interfacing with 5V signal environments while operating at lower voltages.
• Incorporates patented noise and EMI reduction circuitry to minimize electromagnetic interference during high-speed switching.
• Supports live insertion and withdrawal capabilities, allowing safe connection and disconnection without system damage.
• Provides nibble-controlled three-state outputs, enabling flexible configuration for full 16-bit operation or independent control.

Applications

• Memory and address bus drivers
• Clock distribution circuits
• Bus-oriented transmitter and receiver systems

Procurement Notes

Verify the exact suffix 'GX' against official Fairchild or ON Semiconductor datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with 2.3V–3.6V supply requirements and check for RoHS compliance status in the specific manufacturing batch documentation before procurement.

Selection Notes

Select this component when designing systems requiring 16-bit buffering with 5V tolerance at low voltage levels. Consider its 4.5ns propagation delay and 24mA drive capability for high-speed data lines. Evaluate the need for nibble control versus full-byte control based on interface complexity and pin count constraints.

Part Context

This part belongs to the LCX family of low-voltage CMOS logic devices, designed to bridge 5V and 3.3V/2.5V domains. It serves as a high-performance alternative to older TTL families, offering reduced power consumption and faster switching speeds suitable for modern digital communication interfaces.

Replacement Considerations

Cross-reference with 74LCX16244G or 74LCX16244GX from ON Semiconductor for functional equivalence. Verify pinout compatibility and electrical characteristics match before substitution.