18QHTF21-16.9988-PD

Oscillators Overview

The 18QHTF21-16.9988-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 16.9988 MHz and utilizes LVCMOS output logic levels. 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 with dimensions of 3.2mm x 2.5mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface for digital circuit compatibility
• Integrated standby mode for power management
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose digital timing circuits
• Communication equipment clock sources
• Embedded system microcontroller clocks

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against the specific datasheet before procurement. Ensure the 1.8V supply voltage aligns with the target system design. Confirm that the 4-SMD package footprint matches the PCB layout constraints. Check for any specific RoHS compliance documentation if required by the end product regulations.

Oscillators Selection Notes

Select this component when a 16.9988 MHz clock signal is required with low voltage operation. Consider the LVCMOS output swing for direct interfacing with compatible logic families. Evaluate the thermal performance within the -40°C to 85°C operating range. Compare size constraints against alternative packages if space is limited.

Oscillators Part Context

This part belongs to the 18QHTF series of oscillators from Mercury Electronics, characterized by small form factors and low voltage operation. The series typically includes various frequencies and supply voltages, catering to portable and high-density electronic designs. The 'PD' suffix indicates the inclusion of a power-down feature.

Oscillators Replacement Considerations

Direct replacements must match the 16.9988 MHz frequency, 1.8V supply, LVCMOS output, and 3.2x2.5mm package. Verify pinout compatibility and electrical specifications such as jitter and stability before substitution.