18QHTF21-1.000-OE

Overview

The 18QHTF21-1.000-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.0 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Integrates enable/disable functionality for power management
• Utilizes LVCMOS output interface for digital compatibility
• Features a compact surface-mount package design

Applications

• General clock signal generation in embedded systems
• Timing reference for low-frequency digital circuits
• Power-sensitive portable electronic devices

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's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to prevent assembly errors during manufacturing.

Selection Notes

Select this component when a precise 1.0 MHz timing source is required for low-power applications. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the enable pin feature if dynamic power saving is necessary. Verify that the operating temperature range meets the environmental conditions of the intended deployment scenario.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'OE' suffix typically denotes the presence of an enable control pin, distinguishing it from variants without this feature. These components are designed for space-constrained electronics requiring reliable timing signals.

Replacement Considerations

Direct substitutes include other 1.0 MHz LVCMOS oscillators in 2.0x1.6mm packages with 1.8V operation and enable pins. Verify pinout compatibility and electrical parameters such as jitter and phase noise before substitution.