18QHTF21-75.665-PD

Overview

The 18QHTF21-75.665-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 75.665 MHz and utilizes LVCMOS output logic levels. The device is designed for operation with a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption during inactive periods. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode capability for power management
• Utilizes a leadless SMD package for surface-mount integration

Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 1.8V operation
• Embedded devices utilizing LVCMOS interfaces

Procurement Notes

Verify the specific datasheet from Mercury Electronic Ind. Co., Ltd. to confirm exact electrical parameters such as frequency stability, load capacitance, and operating temperature range. Ensure the 1.8V supply requirement aligns with the target system design. Confirm package dimensions against PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when a 75.665 MHz clock source is required with LVCMOS outputs and 1.8V operation. Consider the standby feature if power efficiency is critical. Verify that the 4-SMD no-lead package fits the assembly process and footprint requirements. Compare against other frequencies in the 18QHTF21 series if alternative timing is needed.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies with consistent LVCMOS output and 1.8V supply characteristics. The manufacturer specializes in quartz crystals and frequency control products, providing reliable timing solutions for industrial and commercial applications.

Replacement Considerations

Check Mercury Electronic Ind. Co., Ltd. documentation for direct replacements within the 18QHTF21 series offering different frequencies. Verify pinout and package compatibility for any cross-brand substitutes. Ensure equivalent LVCMOS drive strength and supply voltage tolerance are maintained.