18QHTF21-63.8976-PD

Overview

The 18QHTF21-63.8976-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 63.8976 MHz and utilizes LVCMOS output logic. The device is designed for low voltage applications, requiring a supply voltage of 1.8V. A key functional characteristic is the inclusion of a standby or power-down mode capability, allowing for energy management during inactive periods. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby and power-down functionality for power management
• Designed for surface-mount technology with no-lead packaging

Applications

• General purpose clock signal generation in electronic circuits
• Timing reference for digital systems requiring 63.8976 MHz
• Embedded devices utilizing low-voltage power supplies

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package dimensions fit within your PCB footprint constraints. Check current availability status as distribution channels may vary.

Selection Notes

Select this component when a precise 63.8976 MHz timing source is required for LVCMOS-compatible logic. Consider the 1.8V operating voltage to ensure compatibility with low-power designs. The integrated power-down feature makes it suitable for battery-operated or energy-efficient applications where standby current reduction is critical.

Part Context

This part belongs to the Mercury Electronics SuperTan series of crystal oscillators. The series offers various frequencies and voltage options. The 'PD' suffix typically indicates the power-down feature. Mercury Electronics specializes in frequency control products, providing standardized solutions for industrial and consumer electronics markets.

Replacement Considerations

Direct substitutes must match the 63.8976 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar XO specifications if Mercury Electronics stock is unavailable.