18QHTF21-63.500-PD

Overview

The 18QHTF21-63.500-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 63.5 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic

Applications

• General clock signal generation
• Embedded system timing
• Digital circuit synchronization

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before integration. Confirm that the 1.8V supply requirement aligns with the target system design. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability.

Selection Notes

Select this component when a precise 63.5 MHz clock source is required for low-power applications. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the small 2.0x1.6mm form factor for space-constrained designs requiring reliable timing signals without excessive power consumption.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series typically offers various frequencies within a standardized 1.8V LVCMOS format. Similar models in the lineup include variants like 18QHTF21-63.000-PD and 18QHTF21-51.200-PD, sharing identical packaging and electrical characteristics.

Replacement Considerations

Direct substitutes may include other 63.5 MHz XO components with matching 1.8V LVCMOS outputs and 4-SMD no-lead packages. Verify pinout compatibility and thermal performance before swapping manufacturers.