C8051F988-GM

Overview

The C8051F988-GM is an 8-bit microcontroller from the Silicon Labs C8051F9xx series, utilizing the CIP-51 8051 core architecture. It features a maximum operating frequency of 25 MHz and includes 4 KB of in-system programmable flash memory alongside 512 bytes of RAM. The device operates within a supply voltage range of 1.8 V to 3.6 V and supports an industrial temperature range from -40°C to +85°C. Integrated peripherals include two PWM units, one SPI channel, one UART/USART interface, and a brown-out detector with power-on reset. It is housed in a compact 24-pin QFN package measuring 4 mm by 4 mm.

Feature Summary

• Integrates a high-speed 8-bit CIP-51 8051 processor core capable of executing instructions at up to 25 MHz.
• Includes on-chip non-volatile flash memory for program storage and internal RAM for data handling.
• Provides multiple communication interfaces including SPI and UART/USART for system connectivity.
• Features integrated analog peripherals such as pulse-width modulation generators and reset monitoring circuits.

Applications

• Battery-powered embedded systems requiring low voltage operation
• Industrial control modules utilizing serial communication protocols
• Motor control applications employing PWM signal generation
• General-purpose microcontroller tasks in space-constrained designs

Procurement Notes

Verify the specific suffix against official Silicon Labs documentation to confirm package type and temperature grade. Confirm current production status as some variants may be obsolete. Ensure compatibility with existing PCB footprints for the 24-QFN form factor. Check for any recent product change notices regarding assembly or material composition updates.

Selection Notes

Select this component when a balance of processing speed and peripheral integration is required for 8-bit applications. Consider the 25 MHz clock speed for real-time control loops. Evaluate the 4 KB flash capacity against application code size requirements. Verify that the 1.8 V to 3.6 V supply range matches the target system power rails.

Part Context

This part belongs to the C8051F9xx family of mixed-signal microcontrollers designed for cost-sensitive and space-constrained applications. The series emphasizes high integration by combining the 8051 core with extensive on-chip peripherals, reducing the need for external components. These devices are optimized for efficiency and performance in standard industrial and commercial environments.

Replacement Considerations

Consult official Silicon Labs substitution guides for verified equivalents. Cross-reference pinouts and electrical specifications carefully. Note that software compatibility may vary between different silicon revisions or family members.