18QHTF21-8.912-OE

Overview

The 18QHTF21-8.912-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.912 MHz and utilizes LVCMOS output logic levels. The device supports an active high enable/disable control function, allowing for power management in system designs. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise clock signals.

Feature Summary

• LVCMOS output interface for digital compatibility
• Active high enable/disable control capability
• Standard crystal oscillator configuration
• Compact 4-SMD no lead surface mount package

Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources
• Consumer electronics timing modules

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 enable/disable pin logic matches your microcontroller or FPGA GPIO capabilities to guarantee proper operation during initialization and sleep modes.

Selection Notes

Select this component when a low-cost, standard frequency XO is required for non-critical timing applications. The 1.8V operating voltage makes it suitable for modern low-power digital systems. Consider the 4-SMD package size for PCB space constraints. Verify that the 8.912 MHz frequency meets the specific baud rate or clock division needs of the target application without requiring external dividers.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various standard frequencies in a small form factor. The series is designed for cost-sensitive applications where moderate stability is sufficient. Mercury Electronics has a long history in quartz crystal manufacturing, providing reliable frequency control solutions for global markets.

Replacement Considerations

Direct replacements include other 8.912 MHz LVCMOS oscillators in 4-SMD packages with 1.8V supply and enable pins. Verify pinout compatibility and electrical characteristics such as current consumption and startup time. Cross-reference with similar series from other manufacturers ensuring identical package dimensions and mounting requirements.