18QHTF21-27.7777-OE

Oscillators Overview

The 18QHTF21-27.7777-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.7777 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and includes enable/disable functionality for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for timing applications requiring precise clock signal generation.

Oscillators Feature Summary

• LVCMOS output logic compatible with standard digital interfaces
• Integrated enable and disable control for power optimization
• Compact surface-mount package suitable for space-constrained designs

Oscillators Applications

• Timing and clock signal generation in electronic devices
• High-performance applications requiring stable frequency references
• Consumer electronics with low power requirements

Oscillators Procurement Notes

Verify the specific frequency tolerance and operating temperature range against your system requirements before procurement. Ensure the 1.8V supply voltage aligns with your design constraints. Confirm the 4-SMD package footprint matches your PCB layout to avoid assembly issues. Check for any specific handling instructions related to the no-lead soldering process.

Oscillators Selection Notes

Select this oscillator when a 27.7777 MHz clock source is required with LVCMOS compatibility. Consider the 1.8V supply requirement and enable/disable feature for power-sensitive applications. The small 2.0x1.6mm package makes it suitable for dense PCB layouts. Evaluate thermal performance within the specified operating temperature range.

Oscillators Part Context

This part belongs to the 18QHTF21 series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies with consistent LVCMOS output and enable/disable features. These oscillators are designed for applications needing reliable timing signals in compact form factors. The series supports multiple supply voltages and package types across different models.

Oscillators Replacement Considerations

Direct substitutes include other 27.7777 MHz LVCMOS oscillators with similar package dimensions and electrical characteristics. Verify pin compatibility and supply voltage requirements when considering alternatives. Ensure the replacement maintains the same enable/disable functionality if power management is critical.