18QHTF21-13.560-PD

Overview

The 18QHTF21-13.560-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.56 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage and features a standby (power down) control function for energy management. It is housed in a compact 4-SMD, no lead surface-mount package with dimensions of 2.00mm x 1.60mm. The component is designed for timing applications requiring precise frequency stability.

Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Includes standby control functionality to reduce power consumption
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• Battery-powered portable devices
• RFID reader circuits
• General purpose timing references

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD no-lead package footprint matches the PCB layout requirements. Check for any specific handling instructions regarding electrostatic discharge sensitivity during assembly.

Selection Notes

Select this component when a 13.56 MHz clock signal is required with low voltage operation. The LVCMOS output is suitable for direct interfacing with standard digital logic families. The standby feature makes it appropriate for applications requiring power management. Consider the small form factor for space-constrained designs.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies including 51.2 MHz and 68.665 MHz. All variants share similar electrical characteristics and packaging, differing primarily in their output frequency specifications.

Replacement Considerations

Direct substitutes include other 13.56 MHz XO units with LVCMOS outputs and 1.8V supply requirements. Verify pinout compatibility and thermal performance before substitution.