NSC5021A-27M

Overview

The NSC5021A-27M is a standard CMOS crystal oscillator manufactured by NDK (NIHON DEMPA KOGYO CO., LTD). It operates at a nominal frequency of 27 MHz and utilizes a 4-SMD, No Lead surface-mount package. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is designed for applications requiring precise timing signals in compact electronic systems.

Feature Summary

• CMOS output signal generation
• Integrated standby mode capability
• Compact surface-mount form factor

Applications

• Digital clock signal distribution
• Microcontroller system timing
• Communication interface synchronization

Procurement Notes

Verify the specific ordering suffix to confirm the 1.8V supply voltage requirement, as variants exist with different voltage ratings. Ensure the selected part number matches the required package type and frequency tolerance specifications for your design.

Selection Notes

Select this component when a low-voltage 1.8V CMOS oscillator is required. Compare against the NSC5021D-27M if a 3.3V supply is needed instead. Verify that the 4-SMD footprint aligns with the PCB layout constraints.

Part Context

This model belongs to the NSC5021 series of surface-mount crystal oscillators from NDK. It provides a stable clock source for digital circuits. The 'A' suffix typically denotes the 1.8V operating voltage variant within this product line.

Replacement Considerations

NSC5021D-27M is a confirmed substitute offering identical frequency and package but operates at 3.3V. Ensure voltage compatibility before substitution.