18QHTF21-31.644-PD

Oscillators Overview

The 18QHTF21-31.644-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 31.644 MHz with LVCMOS output logic and a supply voltage of 1.8V. The device features a Standby (Power Down) function and utilizes a 4-SMD, No Lead package.

Oscillators Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic for digital interfacing
• Includes Standby or Power Down functionality to reduce power consumption
• Utilizes a compact 4-SMD No Lead surface mount package

Oscillators Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring low voltage operation
• Embedded applications necessitating power-down capabilities

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 layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 31.644 MHz timing source is required within a low-voltage environment. The choice is driven by the need for LVCMOS compatibility and the integration of power management features via the standby pin. Consider the physical constraints of the 4-SMD No Lead package for space-limited designs.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, which specializes in quartz crystal frequency control products. The series typically offers standard XO configurations with various frequency options and voltage levels, catering to diverse industrial and consumer electronics applications requiring reliable timing solutions.

Oscillators Replacement Considerations

Direct substitutes may include other 31.644 MHz LVCMOS oscillators with identical 1.8V supply and 4-SMD No Lead packaging. Verify electrical parameters such as phase noise and jitter against the original datasheet to ensure functional equivalence in the specific application context.