18QHTF21-65.280-OE

Overview

The 18QHTF21-65.280-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 65.28 MHz with LVCMOS output logic. The device functions on a 1.8V supply voltage and includes an enable/disable control feature. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0 x 1.6 mm. The unit offers ±50ppm frequency stability and supports an operating temperature range suitable for general electronic applications.

Feature Summary

• LVCMOS output logic interface
• Integrated enable and disable control functionality
• Compact 4-SMD surface mount package

Applications

• General clock signal generation
• Digital circuit timing references
• Embedded system 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 PCB footprint matches the 2.0x1.6mm SMD package dimensions to prevent assembly issues. Cross-reference the datasheet for any specific handling or storage conditions required for the component.

Selection Notes

Select this component when a low-voltage 1.8V clock source is required for space-constrained designs. The LVCMOS output is compatible with standard digital logic families. Consider the ±50ppm stability for applications not requiring high-precision timing. The enable pin allows for power management strategies in battery-operated devices. Verify thermal performance within the specified operating temperature range.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically features small form factors and low power consumption. Other variants in the series may differ in frequency, voltage, or package size. This specific model is defined by its 65.28 MHz output and 1.8V operation.

Replacement Considerations

Direct substitutes must match the 65.28 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check compatibility of pinout and enable logic. Verify equivalent frequency stability and temperature range. No other specific substitute part numbers are confirmed in public documentation.