18QHTF21-1.670-OE

Overview

The 18QHTF21-1.670-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.67 MHz and utilizes LVCMOS output logic levels. The device supports an active enable/disable function controlled by a 1.8V supply voltage. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation with 1.8V power supply
• Features LVCMOS output compatibility for digital interfaces
• Includes hardware enable/disable control functionality

Applications

• Embedded system clock generation
• Low-power portable electronic devices
• Digital signal processing timing references

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against the specific application design before procurement. Confirm that the 1.8V operating voltage aligns with the target circuit's power rails. 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 low-frequency 1.67 MHz reference is required with minimal power consumption. The LVCMOS interface ensures direct compatibility with standard digital logic families without additional level shifting. The small form factor makes it suitable for space-constrained designs where larger oscillators cannot be accommodated within the available board area constraints.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequency options while maintaining consistent electrical characteristics and package dimensions. The -OE suffix typically denotes specific packaging or tape-and-reel configurations provided by the manufacturer for automated assembly integration.

Replacement Considerations

Direct substitutes include other 1.67 MHz XO components with identical 4-SMD no-lead footprints and LVCMOS outputs. Verify that alternative parts support the same 1.8V operating voltage and enable/disable pin functionality to ensure seamless integration without redesigning the surrounding circuitry.