C8051F989-C-GU

Overview

The C8051F989-C-GU 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. The device operates at speeds up to 25MHz with an internal oscillator. It supports supply voltages between 1.8V and 3.6V and functions within a temperature range of -40°C to +85°C. Connectivity includes SMBus, SPI, and UART/USART interfaces. Peripherals comprise brownout detection, power-on reset, PWM, and a watchdog timer. The component is housed in a 24-QSOP package.

Feature Summary

• Integrates a high-performance CIP-51 8051-compatible core for efficient code execution.
• Includes on-chip analog and digital peripherals such as PWM and watchdog timers.
• Supports multiple serial communication protocols including SPI, UART, and SMBus.

Applications

• Battery-powered sensor nodes requiring low active current consumption
• Industrial control systems utilizing serial communication interfaces
• Consumer electronics devices operating within standard voltage ranges

Procurement Notes

Verify the specific suffix 'C' against official datasheets to confirm temperature grade and revision status. Confirm package type matches design requirements. Check manufacturer notices for end-of-life or obsolescence declarations. Validate pin compatibility if replacing existing components. Ensure supply chain sources provide authentic parts with proper traceability documentation.

Selection Notes

Select this model when 4KB flash capacity suffices for application firmware. Choose for designs requiring QSOP packaging constraints. Consider for projects needing integrated capacitive sensing capabilities if supported by the specific silicon revision. Evaluate power consumption metrics against system battery life requirements. Verify peripheral availability meets interface needs without external components.

Part Context

This component belongs to the C8051F9xx family of ultra-low-power mixed-signal microcontrollers. The series emphasizes energy efficiency with sleep modes consuming nanoamperes. These devices integrate extensive analog and digital resources onto a single chip. They target applications demanding high integration and minimal external component count.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.