C8051F980-GM

Overview

The C8051F980-GM is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, utilizing the CIP-51 core. It features 8KB of in-system programmable Flash memory and 512 bytes of RAM. The device operates at a maximum clock speed of 25MHz with an internal oscillator. It includes nine 12-bit analog-to-digital converters (ADCs), SMBus/I²C, SPI, and UART/USART interfaces. Power supply ranges from 1.8V to 3.6V, with an operating temperature range of -40°C to 85°C. The component is housed in a 20-QFN package.

Feature Summary

• Integrates nine 12-bit ADCs for high-resolution analog signal acquisition
• Includes on-chip temperature sensor and power-on reset circuitry
• Supports multiple serial communication protocols including I²C, SPI, and UART

Applications

• Battery-powered sensor nodes requiring low voltage operation
• Industrial control systems with analog input monitoring
• Data acquisition modules using integrated temperature sensing

Procurement Notes

Verify current availability status as distribution channels may list this part as obsolete or not recommended for new designs. Confirm package marking and revision level against official datasheets before integration. Ensure compatibility with existing firmware architectures designed for the CIP-51 instruction set.

Selection Notes

Select this component when nine independent 12-bit ADC channels are required within a compact 20-pin footprint. Compare against other C8051F9xx variants if higher Flash capacity or additional digital peripherals are needed. Verify that the 1.8V to 3.6V supply range aligns with system power constraints.

Part Context

This MCU belongs to the C8051F9xx family, which emphasizes mixed-signal capabilities. The C8051F980 variant specifically provides a balance of moderate program memory and extensive analog conversion resources. It shares architectural similarities with other members like the C8051F990 but differs in peripheral configuration and memory size.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Check for direct pin-compatible upgrades within the C8051F9xx series, such as the C8051F990-C-GMR, ensuring functional equivalence of the nine 12-bit ADCs and memory specifications.