18QHTF21-67.392-PD

Overview

The 18QHTF21-67.392-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 67.392 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 to manage energy consumption. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation with integrated power-down capability
• Provides stable clock signals via standard LVCMOS interface
• Utilizes leadless surface-mount packaging for automated assembly

Applications

• Embedded systems requiring precise timing references
• Communication equipment utilizing LVCMOS interfaces
• Portable devices necessitating low-power clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Ensure the selected variant matches the required operating temperature range and supply voltage specifications. Confirm that the 4-SMD no-lead package dimensions align with the target PCB footprint design constraints.

Selection Notes

Select this component when a 1.8V supply is available and LVCMOS compatibility is required. Consider the thermal performance and stability needs relative to the application environment. Evaluate the physical size constraints imposed by the 4-SMD package against the board layout limitations.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized small form factor. The 'PD' suffix indicates the inclusion of a power-down control feature, distinguishing it from standard continuous-operation variants within the same product line.

Replacement Considerations

Consult the manufacturer's cross-reference list for direct substitutes. Verify pinout compatibility and electrical parameters such as voltage and logic levels before replacing with alternative brands.