DSC8121DI2

Overview

The DSC8121DI2 is a programmable MEMS oscillator manufactured by Microchip Technology, designed for precision frequency generation in digital systems. It operates within a supply voltage range of 2.25V to 3.6V and delivers a CMOS output signal. The device supports a frequency range from 10 MHz to 170 MHz with an overall frequency stability of ±25ppm. It features enable/disable functionality and is housed in a QFN-4 surface-mount package. The component is rated for operation in ambient temperatures ranging from -40°C to 85°C.

Feature Summary

• Utilizes MEMS technology for robust frequency stability
• Supports programmable frequency configuration via user interface
• Includes hardware enable and disable control pins
• Delivers standard CMOS output logic levels

Applications

• Telecommunications equipment requiring precise clocking
• Industrial automation systems needing stable timing references
• Digital consumer electronics utilizing LVCMOS interfaces
• Data communication modules operating within specified temperature ranges

Procurement Notes

Verify the specific suffix DI2 against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with system voltage rails between 2.25V and 3.6V. Confirm that the blank programming state meets project requirements before integration. Check for recent PCN updates regarding marking or packaging changes.

Selection Notes

Select this model when a small QFN-4 footprint is required for high-frequency applications up to 170 MHz. Choose based on the need for ±25ppm stability over the industrial temperature range. Consider the CMOS output format for direct interfacing with digital logic. Evaluate power consumption constraints relative to the maximum supply current specifications.

Part Context

The DSC8121DI2 belongs to the DSC8121 series of programmable MEMS oscillators from Microchip Technology. This family offers alternatives to traditional quartz crystals by providing smaller form factors and higher reliability. The DI2 suffix specifically denotes the QFN-4 package variant within this product line, distinguishing it from other package options like VDFN or SMD.

Replacement Considerations

Direct substitutes include other DSC8121 variants with compatible packages such as DSC8121AI2 or DSC8121BI2, provided pinout and thermal characteristics match. Cross-reference with DSC8101 series if lower frequency ranges suffice. Verify that any replacement maintains the same CMOS output type and voltage supply requirements.