18QHTF21-6.500-OE

Overview

The 18QHTF21-6.500-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 6.5 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with 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, suitable for surface-mount assembly.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable functionality for power management
• Compact 4-SMD no-lead surface mount package design

Applications

• General-purpose 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 procurement. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Cross-reference the datasheet for operating temperature range specifications to guarantee reliability under intended environmental conditions.

Selection Notes

Select this component when a precise 6.5 MHz reference is required for LVCMOS-compatible circuits. The integrated enable pin offers flexibility for power-sensitive designs requiring periodic shutdown capabilities. Consider the 1.8V operating voltage as a primary constraint for compatible logic families. Evaluate the small form factor benefits for space-constrained board layouts compared to larger oscillator packages.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronic. The series provides various frequency options within a consistent 4-SMD package format. The 'OE' suffix typically denotes the presence of an output enable feature. This family targets applications needing reliable timing sources with low profile and power efficiency.

Replacement Considerations

Direct replacements must match the 6.5 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify equivalent enable/disable functionality if critical. Check dimensional tolerances for mechanical fit. Consult manufacturer cross-reference lists for verified substitutes.