18QHTF21-67.563-OE

Overview

The 18QHTF21-67.563-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 67.563 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for operation within a specified temperature range suitable for electronic applications.

Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Features active enable/disable control pin for power optimization
• Utilizes a leadless SMD package for surface mount assembly

Applications

• General clock signal generation in embedded systems
• Timing reference for digital communication interfaces
• Clock source for microcontroller or FPGA circuits

Procurement Notes

Verify the specific operating temperature range 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 PCB footprint matches the 4-SMD no-lead package dimensions to prevent assembly errors during manufacturing.

Selection Notes

Select this component when a precise 67.563 MHz timing source is required with low voltage operation. Consider the enable/disable functionality if power conservation is critical. Evaluate the thermal performance limits to ensure reliability under expected environmental conditions. Compare package size constraints against available board space.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in producing crystals and oscillators. This series typically offers standard specifications for general-purpose timing applications in consumer and industrial electronics.

Replacement Considerations

Compatible substitutes include other 67.563 MHz LVCMOS oscillators with identical 1.8V supply and 4-SMD no-lead packaging. Verify electrical parameters such as frequency stability and phase noise match the original design requirements before substitution.