18QHTF21-64.200-PD

Overview

The 18QHTF21-64.200-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 64.2 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby function for power-down control. It is housed in a compact 4-SMD, no lead package, designed for surface-mount applications.

Feature Summary

• LVCMOS output logic interface
• Integrated standby mode for power management
• Surface-mount 4-SMD no lead package

Applications

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

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no lead footprint matches your PCB layout to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a precise 64.2 MHz clock source is required with low power consumption capabilities. The LVCMOS output ensures compatibility with standard digital logic families. Consider the standby feature if power efficiency during idle states is a critical design constraint for the target application environment.

Part Context

This part belongs to the Mercury Electronics XO series, which provides stable frequency control solutions. The manufacturer specializes in quartz crystals and oscillators, leveraging decades of experience in frequency control product manufacturing. This specific model represents a standard configuration within their portfolio of surface-mount oscillators.

Replacement Considerations

Direct substitutes must match the 64.2 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD no lead package dimensions. Verify pinout compatibility and electrical specifications to ensure seamless integration without redesigning the host circuit board or power supply infrastructure.

FAQ

Does the 18QHTF21-64.200-PD support variable frequency adjustment?

No, this is a standard XO (Crystal Oscillator) with a fixed frequency of 64.2 MHz. It does not support frequency tuning.

What is the purpose of the standby function in this oscillator?

The standby function allows the device to enter a power-down state, reducing current consumption when the clock signal is not actively required by the system.