18QHTF21-13.5635-OE

Overview

The 18QHTF21-13.5635-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 13.5635 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports Enable/Disable functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Compact 4-SMD No Lead surface mount package design

Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 1.8V operation
• Embedded applications utilizing LVCMOS interfaces

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD No Lead package footprint matches the PCB layout constraints to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a precise 13.5635 MHz timing source is required within space-constrained designs. The 1.8V operating voltage makes it suitable for low-power portable devices or modern digital logic families. The enable pin allows for dynamic power control, which is beneficial for battery-operated applications requiring extended standby times without compromising signal integrity during active modes.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic, a manufacturer specializing in quartz crystals and oscillators. The series typically offers various frequencies and package options. This specific model represents a standard XO variant designed for general-purpose timing applications where size and low voltage operation are primary selection criteria.

Replacement Considerations

Direct substitutes include other 18QHTF21 series models with identical 13.5635 MHz frequency, 1.8V supply, and LVCMOS output. Verify pinout compatibility and physical dimensions (2.0x1.6mm) when considering alternative manufacturers. Ensure equivalent electrical specifications such as phase noise and jitter if strict timing performance is required.