18QHTF21-9.984625-OE

Overview

The 18QHTF21-9.984625-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 9.984625 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an Enable/Disable control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Features integrated Enable/Disable functionality for power management
• Utilizes a low-profile 4-SMD No Lead surface-mount package

Applications

• General clock signal generation in embedded systems
• Timing reference for microcontrollers and processors
• Digital communication interfaces requiring precise frequency standards

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD No Lead footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Selection Notes

Select this component when a precise 9.984625 MHz timing source is required for low-voltage digital circuits. The LVCMOS output ensures compatibility with standard logic families. The Enable/Disable pin allows for dynamic power control, which is beneficial for battery-operated or energy-efficient designs. Consider the small 2.0x1.6mm package size if space constraints are critical in the application.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options, all sharing the same compact 4-SMD No Lead form factor. These oscillators are designed for applications requiring stable clock signals in consumer electronics, industrial controls, and telecommunications equipment where size and power efficiency are prioritized.

Replacement Considerations

Direct substitutes within the same series include other frequency variants such as 18QHTF21-13.1313-OE or 18QHTF21-44.200-OE, provided the frequency difference is acceptable for the application. Ensure any replacement maintains the 1.8V supply voltage and LVCMOS output characteristics to preserve electrical compatibility.