18QHTF21-2.1845-OE

Oscillators Overview

The 18QHTF21-2.1845-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 2.1845 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features enable/disable functionality. Frequency stability is specified at ±50ppm, with an operating temperature range from -40°C to 85°C. The component is housed in a 4-SMD, No Lead package.

Oscillators Feature Summary

• LVCMOS output interface for digital signal compatibility
• Enable/Disable control function for power management
• Standard crystal oscillator design for timing applications

Oscillators Applications

• Embedded systems requiring precise clock signals
• Industrial equipment timing circuits
• Consumer electronics with low voltage requirements

Oscillators Procurement Notes

Verify the specific frequency suffix matches the required 2.1845 MHz specification. Confirm the 1.8V supply voltage aligns with system power rails. Ensure the LVCMOS output type is compatible with the target logic family. Check the ±50ppm stability requirement against application tolerance needs. Validate the -40°C to 85°C temperature range for environmental conditions.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V oscillator is required. Consider the LVCMOS output for direct interfacing with digital logic. Evaluate the ±50ppm stability against jitter-sensitive designs. Verify the 4-SMD package fits the PCB layout constraints. Assess the enable/disable feature for power efficiency requirements.

Oscillators Part Context

Mercury Electronics specializes in frequency control products including quartz crystals and oscillators. This model belongs to their standard XO series designed for general-purpose timing. The company has decades of experience in Taiwan's quartz industry. The part represents a compact solution for embedded timing needs.

Oscillators Replacement Considerations

Check for exact frequency match of 2.1845 MHz. Ensure identical 1.8V supply and LVCMOS output. Verify same package dimensions and pinout. Confirm comparable stability and temperature range specifications.