18QHTF21-8.000-PD

Overview

The 18QHTF21-8.000-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8 MHz and utilizes LVCMOS output levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for applications requiring precise timing signals in low-power electronic systems.

Feature Summary

• Provides stable 8 MHz clock signal generation using LVCMOS interface
• Integrates standby mode capability to reduce power consumption during idle periods
• Utilizes surface-mount packaging for automated assembly compatibility

Applications

• General purpose digital circuit timing references
• Low-power embedded system clock sources
• Consumer electronics requiring precise frequency control

Procurement Notes

Verify the specific ordering suffix against official Mercury Electronics documentation to ensure correct voltage and output type configuration. Confirm that the 1.8V supply requirement aligns with target system design constraints before procurement. Check for RoHS compliance status if required by project specifications.

Selection Notes

Select this model when an 8 MHz frequency is required with LVCMOS outputs. Ensure the 1.8V operating voltage matches the system power rail. Consider the 4-SMD package size for PCB layout constraints. Verify that the standby feature meets power management requirements.

Part Context

This part belongs to the Mercury Electronic XO series, which offers various frequencies and voltages. The 18QHTF21 series typically features small form factors suitable for space-constrained designs. Similar parts in the lineup may differ in frequency, voltage, or package type.

Replacement Considerations

Direct substitutes include other 8 MHz LVCMOS oscillators from Mercury Electronics with identical pinout and electrical characteristics. Cross-reference with datasheets to confirm voltage tolerance and package dimensions match exactly.