18QHTF21-20.560-OE

Oscillators Overview

The 18QHTF21-20.560-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 20.56 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes an integrated Enable/Disable control pin for power management. It is housed in a compact 4-SMD surface-mount package, designed for integration into digital circuits requiring precise clock signals.

Oscillators Feature Summary

• Supports active low enable/disable functionality via dedicated control pin
• Generates stable LVCMOS square wave output signals
• Operates on a single 1.8V power supply rail
• Utilizes a small footprint 4-SMD surface-mount housing

Oscillators Applications

• Digital signal processing clock sources
• Microcontroller system timing references
• Communication interface synchronization
• Embedded system clock generation

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the PCB layout accommodates the 4-SMD package dimensions to guarantee proper soldering and thermal performance during assembly.

Oscillators Selection Notes

Select this component when a 20.56 MHz clock source is required with low voltage operation. Consider the Enable/Disable feature if power conservation is necessary during idle states. Verify compatibility with LVCMOS logic levels used in the downstream digital components to ensure signal integrity across the operating temperature range.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronic. The series typically offers various frequency options within a standardized 4-SMD form factor. The suffix OE indicates the inclusion of an enable pin, distinguishing it from basic continuous-output variants within the same physical package family.

Oscillators Replacement Considerations

Direct substitutes must match the 20.56 MHz frequency, 1.8V voltage, LVCMOS output, and 4-SMD package. Check manufacturer-specific pinouts for enable functionality compatibility. Cross-reference electrical parameters such as phase noise and jitter specifications to ensure equivalent performance in the application.