18QHTF21-85.064-PD

Overview

The 18QHTF21-85.064-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 85.064 MHz and utilizes LVCMOS output logic. The device is powered by a 1.8V supply voltage and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic for digital interfacing
• Includes standby mode functionality for power management
• Utilizes surface-mount technology for automated assembly

Applications

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

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 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during operation.

Selection Notes

Select this component when a precise 85.064 MHz clock source is required with low voltage operation. Consider the LVCMOS interface compatibility with your downstream logic devices. Evaluate the need for standby capabilities to optimize power consumption in battery-operated or energy-sensitive applications compared to continuous oscillation alternatives.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The manufacturer has decades of experience in Taiwan producing crystals and oscillators. This series typically offers standard performance levels suitable for general electronic applications requiring stable frequency references.

Replacement Considerations

Compatible substitutes include other 85.064 MHz LVCMOS oscillators in 2.0x1.6mm packages such as the 18QHTF21-85.064 without the PD suffix if standby is not needed, or equivalent parts from manufacturers like Epson or SiTime offering similar form factors and electrical characteristics.