74LCX07MX

Overview

The onsemi 74LCX07MX is a low voltage hex buffer featuring open drain outputs, designed for high-speed operation with CMOS low power dissipation. It operates within a supply voltage range of 2.0V to 5.5V and accepts inputs tolerant up to 5.5V, facilitating interface between 5V and 3V systems. The device provides propagation delays of 0.8ns to 3.7ns depending on the supply voltage and load capacitance. It supports output currents up to +24mA at 3.0V and includes power-down high impedance states.

Feature Summary

• Features five-volt tolerant inputs allowing direct interfacing between 5V and 3V logic systems.
• Outputs are configured as open drain, enabling active HIGH wire AND or active LOW wire OR functions when connected together.
• Provides power-down high impedance state for inputs and outputs to minimize current consumption during standby.
• Fabricated using advanced CMOS technology to achieve high speed while maintaining low power dissipation.

Applications

• Interface circuits connecting 5V systems to 3V systems
• Implementing active HIGH wire AND logic functions
• Implementing active LOW wire OR logic functions

Procurement Notes

Verify the specific package designation against the datasheet ordering information, as the MX suffix corresponds to the TSSOP-14 package. Confirm that the required lead-free status aligns with JEDEC J-STD-020B standards. Ensure input pins are not left floating in the final design to maintain proper logic levels.

Selection Notes

Select this component when open drain output capability is required for wired logic configurations. It is suitable for applications needing voltage translation between 5V and 3V domains without additional level shifting circuitry. Consider the thermal performance and operating temperature range of -40°C to +85°C for environmental compatibility.

Part Context

The 74LCX07MX belongs to the LCX series of low voltage CMOS logic devices manufactured by onsemi. This series is characterized by high speed and low power consumption. The part is functionally equivalent to previous Fairchild Semiconductor designs, with nomenclature adjustments made during the integration process to remove underscores from ordering numbers.

Replacement Considerations

Check for updated part numbers on the manufacturer's website due to system integration changes replacing underscores with dashes. Verify pinout compatibility if substituting with other hex buffers, noting that open drain outputs differ from standard push-pull configurations.