18QHTF21-74.758333-PD

Overview

The 18QHTF21-74.758333-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 74.758333 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and supports a standby power-down mode. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Provides LVCMOS output signal compatibility

Applications

• General clock generation for digital circuits
• Data communication interface timing
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications to ensure reliable performance during deployment.

Selection Notes

Select this component when a precise 74.758333 MHz clock source is required for low-power applications. Ensure the host system supports LVCMOS logic levels and can provide a stable 1.8V supply. Consider the 4-SMD package dimensions for PCB layout constraints.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies with standardized LVCMOS outputs and low-voltage operation, designed for compact electronic devices requiring precise timing signals.

Replacement Considerations

Direct substitutes must match the 74.758333 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics before replacing.