18QHTF21-16.774-PD

Oscillators Overview

The 18QHTF21-16.774-PD is a 16.774 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates with an LVCMOS output signal and supports a supply voltage of 1.8V. The component features a Standby (Power Down) function for energy management. It is housed in a compact 4-SMD, No Lead surface-mount package with dimensions of 2.00mm x 1.60mm.

Oscillators Feature Summary

• Supports Low Voltage Complementary Metal-Oxide-Semiconductor (LVCMOS) output signaling
• Includes standby mode capability for power reduction
• Designed for surface-mount assembly in leadless packages

Oscillators Applications

• General-purpose clock generation in electronic circuits
• Timing reference for digital systems requiring low voltage operation
• Portable devices utilizing power-down functionality

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the 4-SMD no-lead footprint matches the PCB land pattern to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 16.774 MHz timing source is required within space-constrained designs. The choice is driven by the need for low-voltage compatibility at 1.8V and the integration of power-saving standby modes. The small form factor makes it suitable for dense board layouts where larger packages are not feasible.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, a manufacturer established in 1973 specializing in frequency control products. The series typically includes various standard frequencies with consistent electrical characteristics and packaging standards, ensuring uniformity across different timing applications.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinouts and 1.8V LVCMOS outputs, such as the 18QHTF21-16.7722-PD. Verify that any replacement maintains the same 4-SMD no-lead footprint and standby functionality to ensure seamless integration.