18QHTF21-8.042715-PD

Overview

The 18QHTF21-8.042715-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 8.042715 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0 x 1.6 mm. This component is engineered for applications requiring precise timing signals within low-voltage digital systems.

Feature Summary

• Supports LVCMOS output logic for direct interface with digital circuits
• Includes standby or power-down functionality for energy management
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• Low-voltage digital signal processing systems
• Communication equipment requiring precise clock synchronization
• Portable electronic devices utilizing 1.8V power supplies

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a stable 8.042715 MHz reference is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage constraint and the necessity for a power-down feature to meet efficiency standards. Evaluate the physical space constraints to ensure the 2.0 x 1.6 mm package fits within the designated area on the printed circuit board layout.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronic Ind. Co., Ltd. The series typically offers various frequencies within a small form factor. The '-PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from standard continuous-operation variants within the same package family.

Replacement Considerations

Direct substitutes must match the 8.042715 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify equivalent electrical specifications and pinout compatibility before cross-referencing with other manufacturers' offerings.