18QHTF21-1.340-OE

Overview

The 18QHTF21-1.340-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 1.34 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. A key functional characteristic is the inclusion of an Enable/Disable control pin, allowing for power management flexibility within the circuit. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Feature Summary

• LVCMOS output interface
• Enable/Disable functionality
• 1.8V supply voltage operation

Applications

• General clock signal generation
• Low-power embedded systems
• Digital circuit timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the 4-SMD No Lead package dimensions fit within your PCB layout constraints. Check current availability status as stock levels may vary.

Selection Notes

Select this model when a precise 1.34 MHz reference is required with minimal power consumption. The LVCMOS output ensures compatibility with standard digital logic families operating at 1.8V. Consider the Enable/Disable feature if dynamic power saving is necessary. Evaluate thermal performance and stability needs relative to the standard XO specifications provided in the official datasheet.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies while maintaining consistent electrical characteristics and packaging. The 'OE' suffix typically denotes specific ordering or configuration details defined by the manufacturer. This family targets applications requiring reliable timing sources in space-constrained environments.

Replacement Considerations

Direct substitutes must match the 1.34 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical parameters such as jitter and phase noise before swapping components. Consult the manufacturer's cross-reference list for approved alternatives.