74LCX16244G

Overview

The onsemi 74LCX16244G is a low-voltage 16-bit buffer and line driver featuring five-volt tolerant inputs and outputs. Designed for memory address drivers, clock drivers, and bus-oriented transmitter/receiver applications, the device utilizes nibble control with separate three-state control inputs for each nibble, which can be shorted for full 16-bit operation. It supports live insertion and withdrawal while employing patented noise and EMI reduction circuitry to minimize signal interference.

Feature Summary

• Features five-volt tolerant inputs and outputs compatible with mixed voltage systems
• Supports live insertion and withdrawal operations without system damage
• Utilizes patented noise and EMI reduction circuitry for signal integrity
• Provides high immunity against latch-up conditions exceeding standard thresholds

Applications

• Memory address drivers in low-voltage computing systems
• Clock distribution networks requiring low jitter
• Bus-oriented transmitter and receiver interfaces
• Portable devices utilizing battery-powered low-voltage logic

Procurement Notes

Verify the specific manufacturer designation as onsemi or Fairchild Semiconductor, given historical corporate transitions. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly. Ensure the package variant matches the required footprint, typically plastic fine-pitch ball grid array or similar surface-mount options. Validate that the component meets the intended operating temperature range for the target application environment.

Selection Notes

Select this component when designing systems requiring interface between 3.3V logic and 5V tolerant buses. The nibble-controlled architecture allows flexible configuration for partial or full 16-bit data paths. Consider the power-down high-impedance state for efficient power management during idle periods. Evaluate the output drive strength requirements against the load capacitance to ensure signal timing specifications are met within the specified voltage range.

Part Context

This device belongs to the LCX family of low-voltage CMOS logic products. It serves as a non-inverting buffer designed to drive high-capacitance loads while maintaining low power consumption. The technology focuses on reducing propagation delay and supply current compared to older generation logic families, making it suitable for high-density digital circuits.

Replacement Considerations

Cross-reference with 74LCX16244 equivalents from other manufacturers such as ON Semiconductor or Nexperia. Verify pin compatibility and electrical characteristics before substitution. Note that ordering suffixes may indicate package variations or tape-and-reel configurations rather than functional changes.