18QHTF21-67.728-PD

Overview

The 18QHTF21-67.728-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 67.728 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby function for power down capabilities. It is designed for surface mount applications in a compact 4-SMD, No Lead package. This component is suitable for digital signal processing and communication systems requiring precise clock signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode for power management efficiency
• Compact 4-SMD no lead surface mount package design

Applications

• Digital signal processing equipment
• Communication system timing references
• Embedded control systems

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 RoHS compliance documentation if required for your manufacturing standards.

Selection Notes

Select this model when a 67.728 MHz clock signal is required with low power consumption features. Consider the LVCMOS output level compatibility with your receiving logic gates. Evaluate the thermal performance within the 4-SMD package for your operating environment. Compare against other frequencies in the 18QHTF21 series if alternative timing solutions are needed.

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 1.8V operation. The 'PD' suffix indicates the inclusion of a power-down or standby feature. These components are widely used in portable electronics and data communication devices.

Replacement Considerations

Direct substitutes may include other 67.728 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers. Verify pinout compatibility and electrical specifications such as current consumption and startup time. Cross-reference with Mercury Electronics' own product line for alternative frequencies or package types.