18QHTF21-16.625-PD

Oscillators Overview

The 18QHTF21-16.625-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 16.625 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a power-down standby function to reduce consumption. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down standby capability
• Provides LVCMOS signal output

Oscillators Applications

• Digital clock signal generation
• Microcontroller system timing
• Communication interface synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply rail is stable and within the operational limits defined in the official datasheet. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package specifications to guarantee proper soldering and electrical connection.

Oscillators Selection Notes

Select this component when a precise 16.625 MHz reference is required for low-power applications. The choice depends on the availability of a 1.8V power source and the need for a small form factor. Consider the LVCMOS compatibility with downstream logic gates. Evaluate thermal performance and stability needs relative to the standard XO classification provided by the manufacturer.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series typically includes various frequencies and packages. Mercury has been a pioneer in the Taiwan quartz industry since 1973. This specific model represents a standard XO variant optimized for modern low-voltage digital circuits requiring compact solutions.

Oscillators Replacement Considerations

Direct substitutes must match the 16.625 MHz frequency, 1.8V voltage, and 2.0x1.6 mm package size. Verify pinout compatibility and LVCMOS output characteristics. Check if alternative manufacturers offer equivalent timing accuracy and phase noise specifications. Ensure any replacement supports the same power-down functionality if required by the design.