C8051F811-GS 8051 8-bit Microcontroller

The C8051F811-GS is a capacitive touch sense microcontroller for cost-sensitive, high I/O embedded systems. The MCU offers highly robust, accurate, responsive and easy to configure touch sensing. Built on a powerful 8051 core with 25 MHz performance, the C8051F811-GS brings a high level of processing power and flexibility to add human interface support for accelerometers, vibratory haptic feedback, LED illumination control, temperature sensing and resistive touch screening.

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Specifications Summary

MCU Core: 8051

MHz: 25

Flash (kB): 16

RAM (kB): 0.5

I²C: 1

SPI: 1


Dig I/O Pins: 13



Comparators: 1

PCA Channels: 3

Timers: 3

Cap Sense Channels: 0

Package Type: SOIC16

Package Size (mm): 9.90x3.90

Development Tools Type
C8051F800DK C8051 MCU Development Kit Development Kits
Title Version Resource Type
Keymat Evaluation Kit Software
uVision Driver 4.30 Software
Configuration Wizard 2 Installer 4.40 Software
Production Programmer 3.90 Software
IDE Installer 5.30 Software
FLASHUtil Installer 4.78 Software
KeilC51 Install 9.55 Software
RD-0039-0201 - ZigBee Capsense Dimmer Reference Design with EM3587, EFM8SB1 and PCB Antenna 2.1 Reference Designs
USB Debug Adapter Reset Utility 1.7 Software
Simplicity Studio Production Programmer 1.0 Software
Simplicity Studio v3 v3 Software
Simplicity Studio v3, Linux Installer v3 Software
Simplicity Studio v3, Mac Installer v3 Software
ToolStick University DC Development Tools Software
Simplicity Studio v4, Mac Installer 4.1.5 Software
Simplicity Studio v4 (Windows) 4.1.5 Software
Simplicity Studio v4 (Windows64) v4.1.5 Software
Simplicity Studio v4, Linux Installer 4.1.5 Software
ToolStick Development Tools 2.60.1 Software
PCN #1604111: C8051F80x 1x 2x 3x GS 16NBSOIC Assembly site addition ASECL Product Change Notifications (PCN)
C8051F811-GS CAD/CAE Schematic Footprints and Symbols 1.0 Schematic and Layout Files
MCU Quick-Start Guide Featuring the USB Debug Adapter 0.5 Quick Start Guides
AN140: Integrating HI-TECH 8051 Tools into the IDE 1.3 Application Notes
AN778: UART Bootloader 0.2 Application Notes
AN124: Pin Sharing Techniques for the C2 Interface 1.4 Application Notes
AN447: Printed Circuit Design Notes for Capacitive Sensing with the CS0 Module 0.3 Application Notes
AN528: Buried Capacitor Sensors for Tamper Protection 0.2 Application Notes
AN104: Integrating Keil 8051 Tools into the IDE 3.0 Application Notes
AN119: Calculating Settling Time for Switched Capacitor ADCs 1.3 Application Notes
AN767: SMBus Bootloader 0.1 Application Notes
AN201: Writing to Flash from Firmware 0.7 Application Notes
AN324: Advanced Encryption Standard 0.1 Application Notes
AN529: Capacitive Sensing Through Long Wires 0.2 Application Notes
AN798: EEPROM Emulation with Wear-Leveling for 8-Bit Flash MCUs 0.1 Application Notes
AN376: Effects of ESD Protection Devices on Capacitive Sensing Performance 0.2 Application Notes
AN367: Understanding Capacitive Sensing Signal to Noise Ratios 0.4 Application Notes
C8051F80x/83x Data Sheet (Simplified Chinese): Mixed Signal ISP Flash MCU Family 1.0 Data Sheets
C8051F80x and C8051F83x Mixed-Signal ISP Flash MCU Family 1.0 Data Sheets
C8051F800-DK User's Guide 0.2 User Guides
ToolStick C8051F800 Daughter Card User's Guide 0.1 User Guides
ToolStick Base Adapter User Guide 0.1 User Guides
AN778 Software 0.2 Example Code
AN767SW: SMBus Bootloader Software Example Code
The C8051 Core: A Viable Compute Engine for 8-bit MCU Design 1.0 White Papers
8 Bit Tools package, Release Notes 4.90 Software
Chip Scale Packages Wearables Technology White Papers
Clock Tree 101 - Timing Basics 2 White Papers
Low Power Design Basics: How to Choose the Optimal Low Power MCU for Your Embedded System White Paper White Papers
Si10xx Quick-Start Guide 0.2 Quick Start Guides
Si10xx Quick-Start Guide 0.1 Quick Start Guides
uVision Driver Rev History 4.30 Release Notes
ToolStick Dev Tools Release Notes 2.60.1 Release Notes
USBXpress Win98SE Release Notes 2.42 Release Notes
VCP Driver v6.7.3 Release Notes v6.7.3 Release Notes
IR Performance Analysis Tool Release Notes 1.11 Release Notes
USBXpress v6.7.3 Release Notes 6.7.3 Release Notes
Hex to Svf Release Notes 1.31 Release Notes
8051 Instruction Set Presentations
WMBUS Setup Software
AN111: Using the 8-Bit MCUs in 5 Volt Systems 1.4 Application Notes
AN1096: Simplicity Studio v4 Offline Installation 0.1 Application Notes
AN533: Modular Bootloader Framework for Silicon Labs C8051Fxxx Microcontrollers 0.1 Application Notes
AN568: EEPROM Emulations for Flash Microcontrollers 0.1 Application Notes
AN203: 8-Bit MCU Printed Circuit Board Design Notes 0.3 Application Notes
AN236: Integrating IAR 8051 Tools into the Silicon Laboratories IDE 0.3 Application Notes
AN0822: Simplicity Studio User's Guide 0.3 Application Notes
AN198: Integrating SDCC 8051 Tools into the Silicon Labs IDE 0.2 Application Notes
8-Bit USB Debug Adapter User's Guide 0.3 User Guides
ToolStick Debug Adapter User Guide 0.1 User Guides
EFM8 8-bit Microcontroller Selector Guide 3 Brochures
8-bit MCU Selector Guide 1 Brochures
MCUniversity Course Lectures - Chinese 1 Miscellaneous
IEC-60730 Certificate Miscellaneous
MCUniversity Course Lectures 1 Miscellaneous
AN295: USB Audio Class Tutorial Example Code
AN249: Human Interface Device Tutorial Example Code
AN141: SMBus Communication for Small Form Factor Devices Example Code
AN127: Flash Programming via the C2 Interface Example Code
Designing Sensors into Battery Powered IoT Nodes 1.0 White Papers
Easily Add Capacitive Sense to Just About Anything 1 White Papers
Embedded programming Textbook 1 White Papers
CIP-51 Performance for Standard Library Math Routines 2.1 White Papers
Accuracy Considerations for Microcontroller-Based Temperature Sensors 1.0 White Papers
Choosing the Right Software Framework for Your Design White Papers
How to Overcome Technical Hurdles During Microcontroller Development 1.0 White Papers
Standard Outerbox Label Change to Include RoHS and Halogen Free Mark Product Change Notifications (PCN)
AN1121: Headless Builds with Simplicity Studio v4 0.1 Application Notes
AN1121SW.zip 0.1 Example Code
AN136: Silicon Labs Production Programming Options 1.6 Application Notes
Hex to Svf conversion utility software V 1.31 Software
PB #1606031: Inner Box Label Change Product Change Notifications (PCN)
QuickSense Front Panel STB Software
Simplicity Studio v3, Offline Installer v3 Software
Integrating Hi-Tech 8051 tools into the Silicon Labs IDE Example Code
Integrating Tasking 8051 tools into the Silicon Labs IDE Example Code
AN101: Configuring the Port I/O Crossbar Decoder Example Code
Improving ADC resolution by oversampling and averaging Example Code
Interfacing an External SRAM to the C8051Fxxx Example Code
Configuring the internal and external oscillators Example Code
16-bit PWM using an on-chip timer Example Code
Implementing a real-time clock Example Code
Software UART examples Example Code
AN798: EEPROM Emulation with Wear-Leveling for 8-Bit Flash MCUs 0.1 Example Code
Integrating IAR 8051 tools into the Silicon Labs IDE Example Code
Integrating SDCC 8051 tools into the Silicon Labs IDE Example Code
Modular bootloader framework for Silicon Labs MCUs Example Code
Low Pin-Count LCD Interface Software Example Code
EEPROM emulation for flash microcontrollers Example Code
Writing to flash from firmware Example Code
Three-Channel Power Sequencer. Example Code
Advanced encryption standard Example Code
EFM8 BRD5204A Reference Design Schematic Schematic and Layout Files
EFM8 BRD5204A Reference Design Bill of Materials Schematic and Layout Files
Production Programmer Release Notes 3.90 Release Notes
ToolStick Daughter Card Template Software
Simplicity Commander -- Windows 1.1.0 Software
Simplicity Commander Release Notes 1.1.0 Software
Simplicity Commander -- Mac 1.1.0 Software
Simplicity Commander -- Linux 1.1.0 Software
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