18QHTF21-85.920-PD

Overview

The 18QHTF21-85.920-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 85.92 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount assembly.

Feature Summary

• Supports low-voltage operation with 1.8V supply requirement
• Integrates standby mode for power reduction
• Provides standard LVCMOS signal output

Applications

• General-purpose clock generation in embedded systems
• Timing reference for digital logic circuits
• Communication interface synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V operating voltage aligns with the system power rails. Ensure the 4-SMD no-lead package dimensions are compatible with the PCB footprint to avoid assembly issues during manufacturing.

Selection Notes

Select this component when a precise 85.92 MHz timing source is required for LVCMOS-compatible devices. Consider the 1.8V supply constraint and the availability of a power-down feature for applications requiring active power management. Evaluate the thermal and mechanical constraints associated with the small SMD package size.

Part Context

This part belongs to the 18QHTF21 series of clock oscillators from Mercury Electronics. The series offers various frequencies within a standardized 4-SMD form factor. The manufacturer specializes in quartz crystals and frequency control products, providing reliable timing solutions for electronic applications.

Replacement Considerations

Direct substitutes include other 85.92 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pin compatibility and electrical specifications before substitution.