18QHTF21-11.110-OE

Overview

The 18QHTF21-11.110-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 11.11 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring 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

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact surface-mount package design

Applications

• General clock signal generation in electronic circuits
• Timing reference for low-voltage digital systems
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a precise 11.11 MHz timing source is required for LVCMOS-compatible digital logic. The choice is driven by the need for a low-profile surface-mount solution with integrated power management capabilities via the enable pin. Consider the operating temperature range and phase noise specifications if the application demands high-frequency stability or strict jitter performance limits.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies within the same physical footprint, allowing for design flexibility. Mercury Electronics is a specialized manufacturer of frequency control products, including quartz crystals and oscillators, with a long history in the industry.

Replacement Considerations

Direct substitutes include other 11.11 MHz LVCMOS oscillators in a 2.0x1.6mm SMD package with 1.8V operation and enable pins. Verify pinout compatibility and electrical characteristics such as rise/fall times and current consumption before substitution.