18QHTF21-17.73447-PD

Oscillators Overview

The 18QHTF21-17.73447-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 17.73447 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning at a supply voltage of 1.8V. It features a standby mode that allows for power-down functionality to conserve energy when the oscillator is not in active use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount assembly processes.

Oscillators Feature Summary

• Supports LVCMOS output interface for digital circuit compatibility
• Includes standby capability for power management
• Utilizes a small form factor SMD package

Oscillators Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Oscillators Procurement Notes

Verify the specific ordering suffix matches the required frequency and package variant. Confirm the manufacturer part number against official Mercury Electronics documentation to ensure authenticity. Check for any specific handling requirements related to electrostatic discharge during storage and installation.

Oscillators Selection Notes

Select this component when a precise 17.73447 MHz clock source is required for 1.8V logic systems. Consider the 4-SMD no-lead package size constraints and the necessity for standby power control. Ensure the LVCMOS output swing aligns with the input requirements of the downstream digital components.

Oscillators Part Context

This oscillator belongs to the Mercury Electronics 18QHTF21 series, which focuses on low-voltage, small-footprint crystal oscillators. The series typically offers various frequency options within a standardized 2.0x1.6 mm package format, providing designers with consistent mechanical dimensions across different clock frequencies.

Oscillators Replacement Considerations

Direct substitutes must match the 17.73447 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics before substitution.