74LCX2244SJX

Overview

The Fairchild Semiconductor 74LCX2244SJX is an octal buffer and line driver featuring non-inverting logic with three-state outputs. It operates within a supply voltage range of 2.3V to 3.6V, ensuring compatibility with low-voltage systems while maintaining robust performance. The device incorporates advanced CMOS technology designed for high-speed operation alongside low power dissipation characteristics. Key electrical specifications include a maximum propagation delay of 8.5ns at 2.7V and 7.5ns at 3.3V. Output drive capabilities are rated at ±12mA, supporting reliable signal transmission in bus-oriented applications.

Feature Summary

• Provides eight non-inverting buffers with three-state outputs for flexible bus management
• Features 5V tolerant inputs and outputs to facilitate interfacing between different voltage domains
• Implements patented noise and EMI reduction circuitry to enhance signal integrity
• Supports live insertion and withdrawal operations without causing system damage

Applications

• Memory address drivers in embedded systems
• Clock distribution networks requiring precise timing
• Bus-oriented transmitter and receiver circuits
• Interface modules connecting low-voltage logic to 5V environments

Procurement Notes

Verify the specific suffix SJX against official datasheets to confirm package type and tape-and-reel configuration. Confirm RoHS compliance status and lead-free material declarations directly with the manufacturer or authorized distributors. Ensure the component matches the exact logical function and pinout requirements for your design before procurement.

Selection Notes

Select this component when designing systems that require octal buffering with three-state control and mixed-voltage compatibility. It is suitable for applications demanding low power consumption and high-speed data transfer between 2.5V or 3.3V logic blocks and 5V tolerant interfaces. Consider its EMI reduction features for sensitive analog-digital hybrid designs.

Part Context

This part belongs to the 74LCX family of low-voltage CMOS logic devices. It shares functional similarities with other octal buffers like the 74LCX244 but offers specific packaging and trailing edge specifications defined by the SJX suffix. The LCX series is engineered to bridge legacy 5V systems with modern low-voltage digital logic standards.

Replacement Considerations

Check for direct equivalents such as the onsemi 74LCX2244SJX or STMicroelectronics variants within the same LCX family. Verify pin compatibility and electrical parameters before substitution. Ensure any replacement maintains the 5V tolerance and three-state output functionality required by the original design.