18QHTF21-16.639-PD

Oscillators Overview

The 18QHTF21-16.639-PD is a 16.639 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a standby function for power down control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm.

Oscillators Feature Summary

• LVCMOS output interface
• 1.8V operating voltage
• Standby power down capability

Oscillators Applications

• Low voltage digital circuits
• Clock signal generation
• Embedded systems requiring stable frequency reference

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design. Confirm that the 1.8V supply rail is stable within the operational limits specified in the official datasheet to ensure reliable oscillator performance.

Oscillators Selection Notes

Select this component when a low-profile surface mount oscillator is required for 1.8V logic families. Ensure the application does not demand higher drive levels or different output formats such as HCMOS or CMOS if compatibility is critical.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, which specializes in quartz crystals and frequency control products. The manufacturer has a history dating back to 1973, focusing on precision timing solutions.

Oscillators Replacement Considerations

Direct substitutes must match the 16.639 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility before substitution.