18QHTF21-38.57143-PD

Oscillators Overview

The 18QHTF21-38.57143-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 38.57143 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby (power down) function. It is housed in a 4-SMD, No Lead package.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Includes standby power down capability
• Utilizes LVCMOS output logic

Oscillators Applications

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

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet for the 18QHTF21-38.57143-PD variant. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD package dimensions fit the PCB layout constraints before finalizing procurement.

Oscillators Selection Notes

Select this component when a precise 38.57143 MHz clock source is required with low power consumption. The LVCMOS interface ensures compatibility with standard digital logic families. The integrated standby feature allows for power management in battery-operated or energy-efficient designs requiring periodic clock suspension.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within the same 4-SMD package form factor. The series provides standardized clock solutions with consistent electrical characteristics across different frequency options, facilitating inventory simplification for common design architectures.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical package and voltage specifications but different frequencies, such as 18QHTF21-38.680-PD or 18QHTF21-38.500-PD, provided the frequency difference is acceptable for the application.