18QHTF21-75.690-OE

Overview

The 18QHTF21-75.690-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 75.69 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Produces a stable 75.69 MHz clock signal using LVCMOS logic levels
• Operates on a single 1.8V power supply rail
• Features integrated enable and disable functionality for power management
• Utilizes a small form factor 4-SMD no-lead surface mount package

Applications

• General purpose timing reference for digital circuits
• Clock generation for embedded systems requiring low voltage operation
• Synchronization in portable electronic devices

Procurement Notes

Verify the specific suffix OE against official Mercury Electronics documentation to confirm exact electrical tolerances and temperature range specifications. Ensure the required operating temperature range aligns with the application environment. Confirm that the 1.8V supply voltage matches the target system design before procurement.

Selection Notes

Select this component when a precise 75.69 MHz frequency is required within a space-constrained design. The choice is driven by the need for low voltage operation at 1.8V and the availability of an enable pin for power efficiency. The small 2.0x1.6mm footprint makes it suitable for high-density PCB layouts where larger oscillators cannot fit.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series typically offers various frequencies and voltage options within a standardized small outline package format, catering to modern consumer and industrial electronics requiring reliable timing solutions.

Replacement Considerations

Direct substitutes may include other 75.69 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers. Verify pin compatibility and voltage levels when cross-referencing. Alternative parts from the same family, such as those with different frequency suffixes, are not direct replacements.