18QHTF21-2.750-PD

Oscillators Overview

The 18QHTF21-2.750-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 2.75 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. A key functional characteristic is its standby capability, allowing the oscillator to enter a power-down state when not in use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• 1.8V supply voltage operation
• Standby (Power Down) functionality
• Compact 4-SMD No Lead surface mount package

Oscillators Applications

• General clock signal generation in electronic circuits
• Low-voltage digital system timing references
• Portable devices requiring power management features

Oscillators Procurement Notes

Verify the specific suffix 'PD' confirms the Standby (Power Down) feature against the official datasheet. Ensure the 1.8V supply requirement aligns with the target circuit design. Confirm the 4-SMD No Lead package footprint matches the PCB layout specifications before ordering.

Oscillators Selection Notes

Select this component when a 2.75 MHz clock source is required with LVCMOS outputs. The choice depends on the necessity for a 1.8V operating voltage and the inclusion of a power-down mode for energy efficiency. The small 2.0x1.6 mm package size is suitable for space-constrained designs.

Oscillators Part Context

This part belongs to the 18QHTF21 series of XO oscillators from Mercury Electronics. The series offers various frequencies and output types. The '-PD' suffix specifically denotes the Standby (Power Down) variant, distinguishing it from OE (Enable/Disable) or other logic variants within the same family.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical 2.75 MHz frequency, 1.8V voltage, and PD suffix. Cross-referencing pinouts and thermal characteristics is necessary when considering alternative manufacturers.