18QHTF21-12.2888-OE

Overview

The 18QHTF21-12.2888-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 12.2888 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 with dimensions of 2.0mm x 1.6mm. The component is designed for surface-mount applications and functions within a specified operating temperature range typical for commercial grade oscillators.

Feature Summary

• Integrates LVCMOS output interface for direct digital logic compatibility
• Features active enable and disable pin control for efficient power management
• Utilizes a low-profile 4-SMD no-lead surface mount package design

Applications

• Clock signal generation for microprocessors and microcontrollers
• Timing reference sources for communication interfaces
• Synchronization circuits in consumer electronic devices

Procurement Notes

Verify the specific suffix OE against the manufacturer's current datasheet to confirm exact electrical tolerances and packaging specifications. Ensure that the 1.8V supply requirement aligns with the target system's voltage rails. Confirm the enable/disable functionality is utilized correctly in the circuit design to prevent unintended operation or excessive power consumption during idle states.

Selection Notes

Select this component when a precise 12.2888 MHz timing source is required with low voltage operation. The LVCMOS output is suitable for standard digital logic families. Consider the small form factor for space-constrained PCB layouts. Verify thermal performance requirements against the commercial operating temperature range defined in the official documentation.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which focuses on quartz-based timing solutions. The manufacturer specializes in frequency control products including crystals, TCXOs, and VCTCXOs. This specific model represents a standard XO variant optimized for cost-effective mass production in portable electronics and embedded systems requiring stable clock signals.

Replacement Considerations

Cross-reference part numbers such as 18QHTF21-12.2888-PD for alternative packaging options within the same series. Ensure any substitute maintains identical frequency, voltage, and package dimensions. Verify that the replacement component offers compatible LVCMOS output characteristics and enable control functionality.