18QHTF21-20.8125-PD

Oscillators Overview

The 18QHTF21-20.8125-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 20.8125 MHz and utilizes LVCMOS output logic levels. The device is designed for operation with a supply voltage of 1.8V and includes 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 assembly processes.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power management
• Provides LVCMOS signal output compatibility

Oscillators Applications

• Digital clock signal generation
• Data communication interface timing
• Embedded system microcontroller clocks

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application circuit design. Confirm that the 1.8V supply rail stability meets the oscillator's jitter specifications. Ensure the PCB layout adheres to the manufacturer's recommended footprint dimensions for the 4-SMD package to maintain signal integrity.

Oscillators Selection Notes

Select this component when a precise 20.8125 MHz reference is required for low-power digital circuits. The choice depends on the necessity for LVCMOS interfacing and the availability of a stable 1.8V power source. Consider the physical size constraints of the 4-SMD package relative to the available board space.

Oscillators Part Context

This model belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series is characterized by small form factors and low power consumption profiles. The 'PD' suffix typically indicates the inclusion of a power-down control feature within the oscillator module.

Oscillators Replacement Considerations

Direct replacements must match the 20.8125 MHz frequency, 1.8V supply voltage, LVCMOS output type, and 4-SMD package dimensions. Verify pinout compatibility before substitution.