18QHTF21-25.78125-OE

Oscillators Overview

The 18QHTF21-25.78125-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 25.78125 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output logic interface
• Integrated enable/disable control functionality
• Compact 4-SMD no lead surface mount package

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific suffix against official documentation to confirm exact electrical characteristics and pinout configuration. Ensure compatibility with the target 1.8V supply voltage and LVCMOS logic levels before integration. Confirm that the 4-SMD no lead package dimensions align with the PCB footprint requirements.

Oscillators Selection Notes

Select this component when a stable 25.78125 MHz clock source is required for low-voltage digital systems. The integrated enable feature allows for power management control. Verify that the operating temperature range meets the environmental conditions of the intended application.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies with LVCMOS outputs. The -OE suffix denotes a specific variant within this family, distinguished by its frequency and package type compared to other models like the -PD variant.

Oscillators Replacement Considerations

Direct substitutes may include other 25.78125 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Ensure voltage, current consumption, and enable logic polarity match. Cross-reference datasheets for pin compatibility.