C8051F985-GM

Overview

The C8051F985-GM is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, featuring a CIP-51 core. It integrates 2KB of in-system programmable flash memory and 512 bytes of RAM. The device operates at clock speeds up to 25MHz with a supply voltage range of 1.8V to 3.6V. It includes a 16-channel 10-bit ADC, four general-purpose timers, and multiple communication interfaces including SPI, UART/USART, and SMBus/I2C. The component is housed in a 20-pin QFN package.

Feature Summary

• Integrates a high-speed 16-channel 10-bit analog-to-digital converter for signal acquisition.
• Includes on-chip internal oscillator and comprehensive system monitoring peripherals.
• Supports in-system programming via standard debug interfaces.

Applications

• Battery-powered sensor nodes
• Portable measurement instruments
• Industrial control systems

Procurement Notes

Verify the specific suffix against official documentation, as variants like -GMR indicate tape-and-reel packaging while -GM denotes tube packaging. Confirm current availability status, as this part number may be subject to discontinuation notices or production changes documented by the manufacturer.

Selection Notes

Select this component for applications requiring moderate code storage and mixed-signal capabilities within a compact footprint. Ensure the design accommodates the 1.8V to 3.6V operating range and utilizes the available GPIO pins for required peripheral connections.

Part Context

This unit belongs to the C8051F9xx family of fully integrated mixed-signal microcontrollers. These devices combine a CIP-51 processor with extensive on-chip peripherals, reducing the need for external components in embedded designs.

Replacement Considerations

Consult official cross-reference data for verified substitutes. Other members of the C8051F9xx series may offer pin-compatible alternatives with different memory sizes or peripheral configurations.