74LCX240MTCX

Overview

The Fairchild Semiconductor 74LCX240MTCX is a low-voltage CMOS octal bus transceiver featuring non-inverting logic and three-state outputs. Designed for 2.5V or 3.3V VCC applications, it provides full compatibility with 5V signal environments through its 5V tolerant inputs and outputs. The device utilizes advanced CMOS technology to ensure high-speed operation while maintaining low power dissipation characteristics suitable for modern digital systems.

Feature Summary

• Provides bidirectional data transmission between two buses using eight non-inverting buffers with three-state control
• Features 5V tolerant inputs and outputs allowing direct interfacing between low-voltage logic and legacy 5V systems
• Incorporates patented noise and EMI reduction circuitry to minimize electromagnetic interference during switching

Applications

• Memory address drivers in embedded systems
• Clock distribution networks requiring low jitter
• Bus-oriented transmitter/receiver modules

Procurement Notes

Verify the specific suffix 'MTCX' against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements for your region. Cross-reference the ordering code with authorized distributors to confirm availability and authenticity before finalizing procurement.

Selection Notes

Select this component when designing systems that require bidirectional data transfer between different voltage domains. It is appropriate for applications needing high-speed performance with minimal power consumption. Consider the 5V tolerance feature if interfacing with older peripherals. Verify that the operating temperature range and output drive capabilities meet the specific system load requirements.

Part Context

This part belongs to the 74LCX series of low-voltage CMOS logic devices manufactured by Fairchild Semiconductor. The LCX family is engineered to bridge the gap between traditional 5V logic and modern low-voltage standards like 3.3V and 2.5V. These components are widely used in portable electronics and computing equipment where power efficiency and signal integrity are critical design constraints.

Replacement Considerations

The 74LCX240MTC is a compatible variant from the same manufacturer offering identical logical functionality in a TSSOP-20 package. Verify pinout compatibility and electrical specifications before substitution. Other manufacturers may offer equivalent parts within the 74LCX standard, but functional equivalence must be confirmed via detailed datasheet comparison.