18QHTF21-8.500-PD

Overview

The 18QHTF21-8.500-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.5 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes Standby (Power Down) functionality for power management
• Utilizes a surface-mount 4-SMD, No Lead package design

Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 8.5 MHz
• Embedded applications utilizing LVCMOS interfaces

Procurement Notes

Verify the exact part number suffix to ensure correct configuration. Confirm that the required operating temperature range and load capacitance specifications align with the target application requirements before procurement. Check datasheet for specific electrical characteristics.

Selection Notes

Select this component when an 8.5 MHz clock source is required with low voltage operation. Ensure the system supports LVCMOS logic levels and can accommodate the 1.8V supply requirement. Consider the small form factor for space-constrained designs.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies and voltage options. The series typically provides standard XO performance in compact SMD packages suitable for modern consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other 8.5 MHz LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Verify pinout and voltage compatibility before substitution.