18QHTF21-63.333-PD

Overview

The 18QHTF21-63.333-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 63.333 MHz and utilizes LVCMOS output logic. The device is designed for low power consumption, featuring a supply voltage range that includes 1.8V operation with a standby or power-down mode capability. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD footprint matches the PCB layout constraints. Cross-reference the datasheet for operating temperature ranges to guarantee reliability under intended environmental conditions.

Selection Notes

Select this component when a low-profile, single-ended LVCMOS clock source is required. Consider the 1.8V supply compatibility and power-down features for energy-efficient designs. Evaluate the 63.333 MHz frequency against system clock needs. Verify mechanical fit within the 4-SMD package dimensions relative to surrounding components.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies with LVCMOS outputs and low-voltage operation. The 'PD' suffix typically indicates power-down capability. These oscillators are designed for applications needing stable clock signals in space-constrained environments.

Replacement Considerations

Direct substitutes must match the 63.333 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Check equivalent models from other manufacturers ensuring identical pinout and electrical characteristics. Verify thermal and mechanical compatibility if replacing in existing designs.