C8051F989-C-GM

Overview

The C8051F989-C-GM is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, featuring a CIP-51 core. It integrates 4KB of flash memory and 512 bytes of RAM within a 24-QFN package. The device operates at speeds up to 25MHz with an internal oscillator and supports supply voltages between 1.8V and 3.6V. Connectivity includes SMBus, SPI, and UART/USART interfaces, while peripherals cover power-on reset, watchdog timer, and PWM functions.

Feature Summary

• Integrates a CIP-51 8051-compatible core for standard instruction set execution.
• Includes on-chip analog peripherals such as temperature sensors and capacitive sensing capabilities.
• Supports multiple serial communication protocols including I2C, SPI, and UART.

Applications

• Battery-powered sensor nodes
• Industrial control systems
• Consumer electronics

Procurement Notes

Verify component status as this part may be discontinued or not recommended for new designs. Confirm package markings and revision levels against official errata documents before integration. Ensure compatibility with existing firmware architectures when sourcing replacements.

Selection Notes

Select this model for applications requiring compact QFN packaging and integrated analog features like temperature sensing. Compare pin counts and peripheral sets against similar C8051F9xx variants to ensure interface requirements are met without unnecessary complexity.

Part Context

This component belongs to the C8051F9xx family of mixed-signal microcontrollers. These devices combine a high-performance 8051 core with extensive on-chip analog and digital peripherals, targeting cost-sensitive embedded applications requiring low power consumption and small form factors.

Replacement Considerations

Check for direct substitutes within the C8051F9xx series that offer compatible pinouts and memory sizes. Verify if newer generations provide equivalent functionality with improved availability.