C8051F989-GMR

Overview

The C8051F989-GMR is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, utilizing the CIP-51 core. It features 4KB 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 supports a supply voltage range of 1.8V to 3.6V and functions within a temperature range of -40°C to 85°C. The component is housed in a 24-QFN (4x4) package and includes peripherals such as PWM, WDT, POR, and brown-out detection/reset.

Feature Summary

• Integrates CIP-51 8051 architecture for efficient code execution
• Includes on-chip analog and digital peripheral blocks
• Supports multiple serial communication interfaces including SPI and UART/USART

Applications

• Battery-powered embedded systems requiring low power consumption
• Industrial control applications with simple I/O requirements
• Consumer electronics devices using 8-bit processing

Procurement Notes

Verify the specific suffix 'GMR' against official documentation to confirm tape-and-reel packaging status. Confirm current lifecycle status as sources indicate obsolescence. Ensure compatibility with existing PCB footprints for the 24-QFN package before procurement.

Selection Notes

Select this component when a compact 8-bit MCU with minimal external components is required. The integrated oscillator and limited peripheral set make it suitable for cost-sensitive designs. Compare pin counts and memory sizes against other C8051F9xx variants if more I/O or storage is needed.

Part Context

This part belongs to the C8051F9xx family of mixed-signal microcontrollers. These devices are designed for high integration, reducing bill-of-materials by incorporating analog peripherals directly onto the silicon die alongside the digital CPU core.

Replacement Considerations

Public confirmed substitute: C8051F989-GM.