18QHTF21-8.330-OE

Overview

The 18QHTF21-8.330-OE is a standard LVCMOS crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.33 MHz with a supply voltage of 1.8V. The device features an enable/disable control function and is housed in a 4-SMD, No Lead package. Maximum supply current is specified as 21 mA.

Feature Summary

• Provides stable clock signals via LVCMOS output logic for digital circuit synchronization
• Includes hardware enable and disable functionality to manage power consumption during idle states
• Designed for surface-mount assembly using a compact four-terminal no-lead package format

Applications

• General purpose clock generation in embedded systems
• Timing reference for microcontrollers and processors
• Synchronization in consumer electronic devices

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system design requirements. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside precise 8.33 MHz timing. The enable/disable feature makes it suitable for battery-powered applications where power management is critical. Consider the small form factor if space constraints are a primary design driver.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has produced timing components since 1973, establishing expertise in crystal oscillators and filters. This specific model represents their standard LVCMOS offering for general-purpose timing needs.

Replacement Considerations

Direct substitutes include other 8.33 MHz LVCMOS oscillators with identical 1.8V supply and 4-SMD no-lead packaging. Verify pin compatibility and electrical parameters such as jitter and phase noise before swapping. Alternative part numbers within the same family may offer different temperature ranges or tolerances.