18QHTF21-65.535-PD

Overview

The 18QHTF21-65.535-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 65.535 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down control function. It is housed in a compact 4-SMD, no-lead package suitable for surface-mount applications.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby or power-down functionality for energy management
• Designed for low-voltage operation at 1.8V

Applications

• General-purpose timing clock generation
• Digital signal processing systems
• Communication equipment requiring precise frequency references

Procurement Notes

Verify the specific ordering suffix to ensure the correct control function. The '-PD' suffix indicates a Standby (Power Down) feature, whereas other variants like '-OE' may offer Enable/Disable controls. Confirm that the 1.8V supply requirement aligns with the target system design before procurement.

Selection Notes

Select this component when a 65.535 MHz frequency is required with LVCMOS outputs. Ensure the application supports the 1.8V operating voltage. The choice between '-PD' and other suffixes depends on whether power-down or enable/disable control is needed for the specific system architecture.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of surface-mount crystal oscillators. The series offers various frequencies and control options. Mercury Electronics is a Taiwan-based manufacturer specializing in quartz crystals and timing components, established as a pioneer in the local industry.

Replacement Considerations

The 18QHTF21-65.535-OE is a related variant from the same manufacturer. However, it features an Enable/Disable control instead of the Standby (Power Down) function found in the -PD version. Direct substitution requires verifying if the control logic difference impacts the system design.