18QHTF21-6.3625-OE

Overview

The 18QHTF21-6.3625-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a fixed frequency of 6.3625 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals in electronic circuits.

Feature Summary

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

Applications

• General purpose timing clock generation
• Digital circuit synchronization
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS compatibility. The enable pin feature makes it suitable for power-sensitive designs needing active control. Consider the small form factor of the 4-SMD package for space-constrained layouts. Validate that the 6.3625 MHz frequency meets the exact timing needs of the target application without requiring external dividers or multipliers.

Part Context

This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronic Ind. Co. Ltd. The series typically offers various frequencies within a similar voltage and package profile. It represents a solution for basic clocking needs where moderate precision and low power consumption are prioritized over high stability or extreme temperature performance found in TCXO or OCXO variants.

Replacement Considerations

Direct substitutes must match the 6.3625 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as current consumption and startup time. Cross-reference with other manufacturers offering identical specifications to ensure functional equivalence in the final assembly.