18QHTF21-67.584-PD

Overview

The 18QHTF21-67.584-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 67.584 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage and supports a standby or power-down mode for energy management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications. The component functions as a clock source for digital circuits requiring precise timing signals within the specified operating temperature range.

Feature Summary

• Supports low-power standby and power-down modes to reduce consumption during idle periods
• Provides stable LVCMOS output signals suitable for standard digital logic interfaces
• Utilizes a leadless SMD package design for efficient surface-mount assembly

Applications

• Clock generation for embedded systems requiring 67.584 MHz timing
• Digital signal processing circuits utilizing LVCMOS compatible inputs
• Portable electronic devices benefiting from low-voltage operation and standby capabilities

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply rail is stable and within the manufacturer's specified limits to ensure reliable oscillation. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions provided in the official datasheet to avoid mounting issues.

Selection Notes

Select this component when a precise 67.584 MHz clock signal is required with LVCMOS compatibility. Consider the 1.8V operating voltage constraint and the availability of standby functionality for power-sensitive designs. Evaluate the thermal performance and package size relative to the available board space and environmental conditions.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies with consistent LVCMOS outputs and low-voltage operation. The 'PD' suffix typically indicates specific packaging or tape-and-reel configuration details defined by the manufacturer for automated assembly processes.

Replacement Considerations

Direct replacements must match the 67.584 MHz frequency, LVCMOS output type, and 1.8V supply voltage. Verify pinout compatibility for the 4-SMD No Lead package. Consult the manufacturer's cross-reference list for verified equivalent parts with identical electrical characteristics.