C8051F808-GU

Overview

The C8051F808-GU is an 8-bit mixed-signal ISP Flash microcontroller from the Silicon Labs C8051F80x-83x family. It features a high-speed 8051 core with up to 25 MIPS throughput at a 25 MHz clock frequency. The device includes 16 kB of in-system programmable Flash memory and 512 bytes of internal data RAM. Key peripherals include a 10-bit ADC, comparators, a Capacitance to Digital Converter, UART, SMBus, and SPI interfaces. It operates on a supply voltage of 1.8 V to 3.6 V within a temperature range of –40 °C to +85 °C.

Feature Summary

• Integrated Capacitance to Digital Converter supporting buttons, sliders, wheels, and capacitive proximity sensing with auto-scan capabilities.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Pipelined instruction architecture executing 70% of instructions in one or two system clocks for efficient processing.
• Hardware-enhanced serial communication ports including UART, SMBus, and SPI for versatile connectivity.

Applications

• Capacitive touch sensing applications such as buttons, sliders, and wheels
• Embedded systems requiring mixed-signal processing and analog-to-digital conversion
• Industrial control and monitoring systems utilizing serial communication interfaces

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package type matches QSOP-24 specifications. Check revision status as this series is marked Not Recommended for New Designs. Ensure environmental compliance documentation aligns with project requirements.

Selection Notes

Select this component when a high-integration 8-bit MCU with analog front-end capabilities is required. Consider the specific pinout and peripheral availability compared to other members of the C8051F80x family. Evaluate power consumption profiles against application needs given the 1.8 V to 3.6 V operating range.

Part Context

This part belongs to the C8051F80x-83x family of mixed-signal ISPs Flash MCUs by Silicon Labs. These devices combine a fast 8051 core with extensive on-chip analog and digital peripherals. The family is designed for cost-sensitive embedded applications requiring high integration and low power consumption.

Replacement Considerations

Consult the official product selection guide for compatible alternatives within the C8051F80x series. Verify pin compatibility and peripheral overlap before substitution. Note that this family is designated as Not Recommended for New Designs.