18QHTF21-25.576-PD

Oscillators Overview

The 18QHTF21-25.576-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 25.576 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down function via a standby control input. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V for energy efficiency
• Includes standby mode for power-down functionality
• Utilizes LVCMOS output logic for digital interface compatibility

Oscillators Applications

• Battery-powered portable devices
• Compact electronic systems requiring low profile components
• Digital circuits utilizing LVCMOS logic levels

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target application's power rails. Ensure the 2.0x1.6mm footprint matches your PCB layout constraints. Cross-reference the datasheet for precise electrical characteristics to guarantee signal integrity.

Oscillators Selection Notes

Select this component when a small form factor is critical due to its 2.0x1.6mm SMD package. Choose it for applications requiring a 1.8V supply and LVCMOS outputs. Consider the power-down feature if system-level power management is necessary. Verify frequency stability needs against the standard XO specifications provided in the official documentation.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a 2.0x1.6mm package. The series supports both 1.8V and 3.3V options depending on the suffix. It is designed for general-purpose timing applications where size and power consumption are primary constraints.

Oscillators Replacement Considerations

Check equivalent models from the same manufacturer series with identical pinout and package dimensions. Ensure substitute parts support the required 25.576 MHz frequency and LVCMOS output type. Verify compatibility with the 1.8V supply voltage and standby control functionality.