18QHTF21-65.500-PD

Overview

The 18QHTF21-65.500-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 65.5 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The device features a standby mode for power down capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby functionality to reduce power consumption during idle states
• Utilizes a leadless SMD package for automated surface-mount assembly

Applications

• General purpose clock signal generation in electronic circuits
• Timing reference sources for digital systems requiring 65.5 MHz stability
• Embedded devices utilizing low-voltage 1.8V power domains

Procurement Notes

Verify the specific ordering suffix and frequency tolerance requirements against the official datasheet before purchase. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD no-lead package dimensions fit the available PCB footprint. Check for any specific handling instructions regarding electrostatic discharge sensitivity.

Selection Notes

Select this component when a precise 65.5 MHz timing source is required within a low-voltage 1.8V environment. The LVCMOS output ensures direct interfacing with compatible digital logic families without additional level shifting. Consider the physical constraints of the 4-SMD package size relative to other available oscillator footprints in the design.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The manufacturer has extensive experience in quartz crystal production. This specific model represents a fixed-frequency oscillator option within their broader portfolio of timing components.

Replacement Considerations

Consult official cross-reference data for exact pin-compatible substitutes. Verify that alternative oscillators match the 65.5 MHz frequency, 1.8V voltage, and LVCMOS output type. Package compatibility must be confirmed for direct replacement.