18QHTF21-76.800-OE

Overview

The 18QHTF21-76.800-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 76.800 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring 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 on printed circuit boards.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Low voltage operation at 1.8V supply
• Compact 4-SMD no lead surface mount package

Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources
• Communication interface synchronization

Procurement Notes

Verify the specific suffix OE against official Mercury Electronic documentation to confirm exact electrical tolerances and pinout configuration. Ensure the selected variant matches the required operating temperature range and load capacitance specifications for the target application environment before finalizing procurement orders.

Selection Notes

Select this component when a precise 76.800 MHz clock source is required with low power consumption constraints. The 1.8V supply requirement dictates compatibility with modern low-voltage digital logic families. Consider the enable/disable feature if power management during idle states is necessary for the system design.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic, a manufacturer specializing in quartz crystals and oscillators. The series typically offers various frequencies within a standardized small outline package format. Mercury Electronic has established itself as a supplier of frequency control products including TCXOs and VCTCXOs since 1973.

Replacement Considerations

Direct substitutes may include other 76.800 MHz LVCMOS oscillators in 4-SMD packages from manufacturers such as Epson or SiTime. Verify that replacement parts match the 1.8V supply voltage, current consumption limits, and physical footprint dimensions to ensure board compatibility.