18QHTF21-8.007442-PD

Overview

The 18QHTF21-8.007442-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.007442 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning at 1.8V. It features a standby or power-down control capability to manage power consumption when not in active use. The component is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly processes.

Feature Summary

• Supports LVCMOS output signal compatibility
• Includes standby or power-down functionality
• Operates on a 1.8V supply voltage

Applications

• General-purpose clock generation in embedded systems
• Timing reference for microcontrollers
• Digital signal processing circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct pinout and electrical characteristics. Confirm that the 4-SMD no-lead package matches your PCB footprint requirements. Cross-reference the part number with the latest datasheet to validate the 1.8V operating voltage and LVCMOS interface specifications before finalizing procurement.

Selection Notes

Select this component when a precise 8.007442 MHz timing source is required for low-power digital designs. Ensure the system design supports the 1.8V logic level and accommodates the standby control feature. Verify that the 4-SMD no-lead package dimensions are compatible with the available board space and manufacturing capabilities.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which focuses on small-form-factor timing solutions. The series typically offers various frequency options within a standardized package profile. This specific model provides a fixed frequency output optimized for consumer electronics and portable devices requiring stable clock signals.

Replacement Considerations

Direct substitutes must match the 8.007442 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pin-to-pin compatibility and electrical parameters with alternative manufacturers' datasheets before integration.