18QHTF21-13.560064-PD

Overview

The 18QHTF21-13.560064-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.560064 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) function to reduce power consumption when not in active use. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic levels
• Includes standby mode capability for power management
• Utilizes surface-mount no-lead packaging for automated assembly

Applications

• RFID reader clock sources
• Wireless communication module timing
• Portable electronic device clocks

Procurement Notes

Verify the specific suffix PD indicates the power-down feature as documented. Confirm the 1.8V supply requirement matches the target circuit design. Ensure the 4-SMD footprint aligns with the PCB layout specifications before finalizing procurement orders.

Selection Notes

Select this component when a precise 13.56 MHz frequency is required for RFID or NFC applications. The low profile 2.0x1.6 mm package suits space-constrained designs. The LVCMOS interface ensures compatibility with standard digital logic families operating at 1.8V.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a small form factor. The series is characterized by its suitability for portable electronics requiring stable clock signals with minimal power draw during idle states.

Replacement Considerations

Direct substitutes include other 13.56 MHz XO components in 4-SMD packages with LVCMOS outputs and 1.8V operation. Verify pinout compatibility and thermal characteristics before swapping manufacturers.