18QHTF21-64.516-PD

Overview

The 18QHTF21-64.516-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 64.516 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals within low-power constraints.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode functionality to reduce power consumption
• Utilizes a leadless SMD package for surface mount assembly

Applications

• General purpose clock signal generation
• Low-voltage digital circuit timing
• Portable electronic devices requiring power efficiency

Procurement Notes

Verify the specific operating temperature range 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 guidelines. Check for any specific handling instructions related to the leadless package type during assembly.

Selection Notes

Select this model when a 64.516 MHz frequency is required with LVCMOS outputs. Consider it for designs constrained by a 1.8V supply voltage. The small 2.0x1.6mm package makes it suitable for space-limited applications. Evaluate the standby feature if power management is a priority. Ensure the manufacturer's reliability standards meet your project requirements.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal products. The series typically offers various frequencies with standardized packages. Mercury has a long history in the Taiwan quartz industry, providing frequency control solutions. This specific model represents a standard XO variant within their portfolio.

Replacement Considerations

Direct substitutes may include other 64.516 MHz LVCMOS oscillators in similar 4-SMD packages from different manufacturers. Verify electrical parameters such as supply voltage and output logic levels. Check mechanical dimensions and pinout configurations for compatibility. Ensure equivalent performance characteristics regarding stability and phase noise.