18QHTF21-63.7563-PD

Overview

The 18QHTF21-63.7563-PD is a 63.7563 MHz crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a supply voltage of 1.8V and utilizes LVCMOS output logic. The component features a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. It includes a power-down (Standby) control function to reduce consumption when inactive.

Feature Summary

• Supports low-voltage operation at 1.8V for energy-efficient applications
• Integrates LVCMOS output logic for standard digital interface compatibility
• Includes standby mode capability via power-down pin for active power management

Applications

• Portable electronic devices requiring low power consumption
• Embedded systems utilizing LVCMOS logic interfaces
• Compact consumer electronics with strict size constraints

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a small form factor and low voltage operation are critical. The LVCMOS output ensures compatibility with standard logic families. Consider the power-down feature if dynamic power management is required. Verify thermal performance within the specified operating temperature range for your specific environmental conditions.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies in a standardized 4-SMD package. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from standard continuous-operation variants within the same physical footprint family.

Replacement Considerations

Direct substitutes must match the 63.7563MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Check datasheets for equivalent parts from other manufacturers offering identical pinouts and electrical characteristics to ensure seamless integration without redesign.