18QHTF21-13.544-OE

Overview

The 18QHTF21-13.544-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.544 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes enable and disable functionality for power management
• Utilizes a small form factor surface-mount package

Applications

• General-purpose clock signal generation in electronic circuits
• Low-power embedded systems requiring precise timing
• Consumer electronics utilizing standard crystal oscillators

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements 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 specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a standard frequency of 13.544 MHz is required with LVCMOS outputs. The 1.8V operating voltage makes it suitable for modern low-power digital designs. The enable/disable feature allows for dynamic power control, which is beneficial for battery-operated devices or systems requiring periodic clock gating capabilities.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 2.0x1.6mm SMD package. The series typically supports LVCMOS outputs and includes control functions for power efficiency. Other variants in this family differ primarily in their nominal operating frequencies while maintaining similar electrical and physical characteristics.

Replacement Considerations

Direct substitutes must match the 13.544 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical parameters such as phase noise and jitter if available in the replacement manufacturer's documentation.