18QHTF21-64.0128-PD

Overview

The 18QHTF21-64.0128-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 64.0128 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications. This component provides precise timing signals suitable for digital circuits requiring stable clock sources.

Feature Summary

• LVCMOS output logic interface
• Integrated standby power down capability
• Compact 4-SMD no lead surface mount package

Applications

• Digital circuit clock generation
• Embedded system timing references
• Consumer electronics signal synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge protection during assembly.

Selection Notes

Select this model when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The integrated power-down feature makes it suitable for battery-powered or energy-efficient designs. Consider the 4-SMD form factor for space-constrained applications where through-hole components are not feasible. Verify compatibility with your microcontroller or FPGA clock input specifications.

Part Context

Mercury Electronics specializes in frequency control products including quartz crystals and oscillators. The 18QHTF series represents their line of standard crystal oscillators. This specific part number indicates a 64.0128 MHz variant within the 18QHTF family, characterized by its low voltage operation and surface-mount packaging.

Replacement Considerations

Direct substitutes may include other 64.0128 MHz LVCMOS oscillators from different manufacturers with identical 1.8V supply and 4-SMD pinout. Verify electrical parameters such as current consumption and startup time to ensure functional equivalence. Cross-reference mechanical dimensions to confirm board fit.