MC74LCX07DG

Overview

The MC74LCX07DG is a hex buffer and line driver manufactured by onsemi, belonging to the LCX logic series. It features six non-inverting channels with open-drain outputs in a 14-pin SOIC package. The device operates within a supply voltage range of 2 V to 5.5 V, supporting both 2.5 V and 3.3 V CMOS levels as well as TTL input compatibility. Key electrical parameters include a maximum propagation delay of 3.7 ns at 50 pF load, with output drive capabilities of -8 mA for high state and 8 mA for low state. It functions reliably across an industrial temperature range from -40 °C to +85 °C.

Feature Summary

• Provides six independent non-inverting buffer channels with open-drain output configuration
• Supports wide supply voltage operation from 2 V to 5.5 V for flexible system integration
• Ensures compatibility with 2.5 V and 3.3 V CMOS devices and TTL inputs

Applications

• Memory address buffering and data bus driving
• Clock signal distribution and line termination
• Interface bridging between different voltage logic families

Procurement Notes

Verify the specific suffix 'DG' confirms the SOIC-14 surface-mount package variant. Confirm RoHS compliance status through official manufacturer documentation or material declarations, as older batches may differ. Ensure the ordering code matches the required tape-and-reel or tube packaging format if applicable to your assembly process. Cross-reference the full part number against current obsolescence notices to confirm active manufacturing status.

Selection Notes

Select this component when multiple open-drain buffers are required for wired-OR configurations or level shifting. The LCX series offers lower power consumption compared to legacy HC/HCT families while maintaining comparable speed. Verify that the open-drain nature suits the pull-up requirements of your specific circuit design. Consider the 14-pin SOIC footprint constraints during PCB layout planning.

Part Context

This part belongs to the 74LCX family of low-voltage CMOS logic devices designed for high-speed applications. The LCX series bridges the performance gap between standard CMOS and advanced logic families, offering reduced switching noise and improved noise immunity. The MC74LCX07 specifically addresses the need for high-drive capacity buffers in portable and battery-operated systems requiring efficient power management.

Replacement Considerations

MC74LCX07DT (TSSOP-14 package)

FAQ

What is the output configuration of the MC74LCX07DG?

The device features open-drain outputs, which require external pull-up resistors to define the high logic state.

Does the MC74LCX07DG support TTL input levels?

Yes, the inputs are compatible with TTL logic levels, allowing direct interfacing with older digital systems.