C8051F92x-F93x Ultra Low-Power MCUs

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C8051F92x/93x Block Diagram

The C8051F92x/3x low-power MCU family is the industry's first MCU family capable of full spec operation down to 0.9 V and up to 3.6 V, enabling single-cell battery operation as well as dramatically increasing battery life for dual-cell applications. With an integrated dc-dc converter, the C8051F92x/3x has been designed to provide a fast wake-up time, low active mode and ultra-low sleep mode current consumption.

The F9xx series has the industry’s lowest active mode current consumption, which saves power when the application is running. It also has the industry’s lowest current consumption in sleep modes, which is often the most common mode in many battery-powered applications. Also, since the MCU cannot do any useful processing until all of the digital and analog circuitry all fully settled and operational, the F9xx series offers the industry’s fastest wake-up and analog settling time.

  • Lowest voltage operation
  • Maximized power efficiency
  • Highest functional density
  • Best in class tools

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Designing for low power operation

 

Features

  • One-cell mode supports 0.9 to 1.8 V operation
    • Dual-cell mode supports 1.8 to 3.6 V operation
    • Integrated high-efficiency dc-dc boost converter
    • Integrated low drop out (LDO) voltage regulator
    • Multiple internal oscillators
    • Ultra-low current sleep mode and fast wake
  • 25 MHz, single-cycle 8051 compatible CPU with low active-mode current
  • Burst mode 10-bit ADC with internal fast start-up VREF
  • Up to 23 capacitive touch sense inputs
 

Applications

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Documentation    Expand All   Collapse All

 
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Data Sheet (2)

Document NameDescriptionVersionLast Updated
C8051F930-GDI.pdf
C8051F930-GDI Die Sales1.18/5/2011
C8051F93x-92x.pdf
C8051F93x-92x Data Sheet1.25/15/2011

Data Short (4)

Document NameDescriptionVersionLast Updated
C8051F920_short.pdf
C8051F920 Data Short11110811/11/2008
C8051F921_short.pdf
C8051F921 Data Short011408
C8051F930_short.pdf
C8051F930 Data Short11110811/11/2008
C8051F931_short.pdf
C8051F931 Data Short011408

Errata (1)

Document NameDescriptionVersionLast Updated
C8051F930Errata.pdf
C8051F93x-92x Rev B/C/D Errata10300911/2/2009

User Guides (11)

Document NameDescriptionVersionLast Updated
C8051F930-DK.pdf
C8051F930-DK User Guide0.58/4/2009
EZLink_UG.pdf
EZLink™ Fast Prototyping Modules—User Guide0.111/25/2008
QuickSense_Studio_UG.pdf
QuickSense Studio User's Guide0.212/18/2009
Serial_Debug_Adapter_UG.pdf
RS232 Serial Adapter (EC2) User Guide0.1
SDBC-DK3_UG.pdf
SDBC-DK3 User Guide0.48/25/2009
ToolStick_F931_DC_UG.pdf
ToolStick C8051F931 Daughter Card User Guide0.1
ToolStick_CapTouchSense_DC_UG.pdf
ToolStick CapTouchSense DC UG0.35/13/2011
ToolStick_Debug_Adapter_UG.pdf
ToolStick Debug Adapter User Guide0.1
ToolStick_Programming_Adapter_UG.pdf
Toolstick Programming Adapter User Guide0.39/15/2008
USB_Debug_Adapter_UG.pdf
USB Debug Adapter User Guide0.1
WirelessMBus-EK.pdf
Wireless M-Bus Demonstration Kit User's Guide0.12/22/2010

Application Notes (27)

Document NameDescriptionVersionLast Updated
an101.pdf
AN101: Configuring the Port I/O Crossbar Decoder2.1
an103.pdf
AN103: Using the On-Chip Temperature Sensor1.2
an104.pdf
AN104: Integrating Keil 8051 Tools into the IDE2.91/5/2011
an107.pdf
AN107: Implementing 16-bit PWM Using the PCA1.1
an111.pdf
AN111: Using the C8051Fxxx in 5 Volt Systems1.27/1/2008
an114.pdf
AN114: Hand Soldering Tutorial for Fine Pitch QFP Devices1.1
an117.pdf
AN117: Using the C8051Fxxx On-Chip Interface Utilities DLL3.27/29/2008
an119.pdf
AN119: Calculating Settling Time for Switched Capacitor ADCs1.1
an124.pdf
AN124: Pin Sharing Techniques for the C2 Interface1.1
an125.pdf
AN125: Integrating Raisonance 8051 Tools into the IDE1.3
an126.pdf
AN126: Integrating Tasking 8051 Tools into the Silicon Labs IDE2.4
an127.pdf
AN127: FLASH Programming via the C2 Interface1.1
an136.pdf
AN136: Production Programming Options for MCU Devices1.28/14/2008
an140.pdf
AN140: Integrating HI-TECH 8051 Tools into the IDE1.3
an198.pdf
AN198: Integrating SDCC 8051 Tools into the Silicon Labs IDE0.2
AN203.pdf
AN203: C8051Fxxx Printed Circuit Board Design Notes0.1
an236.pdf
AN236: Integrating IAR 8051 Tools into the Silicon Laboratories IDE0.3
an333.pdf
AN333: ToolStick Virtual Tools User's Guide0.1
an354.pdf
AN354: AB0 Prototyping Board User's GuideRev 0.111/7/2008
AN358.pdf
AN358: Optimizing Low Power Operation of the ‘F9xx0.411/4/2010
AN359.pdf
AN359: Debugging Techniques for the C8051F9xx Family0.311/4/2010
AN431.pdf
AN431: C8051F93x-90x Software Porting Guide0.112/8/2009
AN451.pdf
AN451: Wireless M-Bus Software Implementation0.12/22/2010
AN452.pdf
AN452: Wireless M-Bus Stack Programmer's Guide0.12/22/2010
AN520.pdf
AN520: CMOS Advanced Galvanic Isolators for Medical Electronics0.16/17/2010
AN533.pdf
AN533: Modular Bootloader Framework for Silicon Labs C8051Fxxx Microcontrollers0.112/3/2010
AN568.pdf
AN568: EEPROM Emulations for Flash Microcontrollers0.11/5/2011

White Papers (6)

Document NameDescriptionVersionLast Updated
CIP-51.pdf
CIP-51 Performance for Standard Library Math Routines2.1
Selecting-the-Optimal-Battery-White-Paper-GER.pdf
Die Wahl der optimalen Batterie für Ihr Embedded-System1.010/20/2011
Low-Power-Design-Basics.pdf
Low Power Design Basics: How to Choose the Optimal Low Power MCU for Your Embedded System White Paper
Selecting-the-Optimal-Battery_WP.pdf
Selecting the Optimal Battery for your Embedded Application1.16/24/2011
Personal medical device market white paper.pdf
The Heartbeat behind Portable Medical Devices: Ultra-Low-Power Mixed-Signal Microcontrollers0.19/3/2010
Using-Low-Cost-OTP-Microcontrollers-to-Simplify-Embedded-Applications.pdf
Using Low-Cost OTP Microcontrollers to Simplify Embedded Applications

Miscellaneous (5)

Document NameDescriptionVersionLast Updated
C2spec.pdf
C2 Specification1.1
C8051F9xx_FAQ.pdf
C8051F9xx Product Family FAQs0.1
MCU_QS_Guide_USB.pdf
MCU Quick-Start Guide Featuring the USB Debug Adapter0.5
RF_Wireless_Foundation_CB1.pdf
RF Wireless Foundation Course Book One0.111/24/2008
Wireless_MBus_QSG.pdf
Wireless M-Bus Quick Start Guide0.12/16/2010

PCN (6)

Document NameDescriptionVersionLast Updated
1104202-BCCC-BCDM_FM_Receiver_3x3_QFN_Change_to_Copper_Wire_Bond_Material_and_Assembly_Site_Expansion.pdf
BCCC-BCDM FM Receiver 3x3 QFN Change to Copper Wire Bond Material and Assembly Site Expansion
1002101-MCU_32LQFP_14SOIC_Family_Test_Site_Expand_ASECL_Std.pdf
MCU 32LQFP/14SOIC Family Test Site Expand ASECL Std
1004221A.pdf
MCU DFN/QFN/TQFN/TQFP Pkg Test Site Expand-ASECL Grp1of2 Std
1005191A.pdf
MCU DFN/QFN/TQFN/TQFP Pkg Test Site Expand-ASECL, Grp2of2 Std
1005191.pdf
MCU DFN/QFN/TQFN/TQFP Pkg Test Site Expand-ASECL, Grp2of2, Std
1011021.pdf
MCU Fab(TSMC) & Assy(ASECL)Site Expansion Std
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Development Kits

 

Design Tools    Expand All   Collapse All

 
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Software (38)

Document NameDescriptionVersionUpdated
an106sw.zip
Interfacing an External SRAM to the C8051Fxxx
an110sw.zip
16-bit PWM using an on-chip timer
an324sw.zip
Advanced encryption standard
BatteryLifeEstimator_Installer.exe
Battery Life Estimator Installer
an534sw.zip
CAN BOOTLOADER
CAN_OBD_DC_Setup.zip
CAN OBD Reader Reference Design Kit
CapTouchSenseDC_Senso_Web.zip
CapTouchSense game
ConfigAndConfig2Install.exe
Configuration Wizard 2 Installer4.0112/7/2011
an102sw.zip
Configuring the internal and external oscillators
an101sw.zip
Configuring the Port I/O Crossbar Decoder
AN568SW.zip
EEPROM emulation for flash microcontrollers
EZLink_C8051F930_Si443x_B1.zip
EZLink Firmware (F930/Si443x)1.4r/b8/10/2010
an127sw.zip
Flash programming via the C2 interface
UtilDLL.exe
FLASHUtil Installer4.0012/7/2011
Hex2Svf_Installer.exe
Hex to Svf conversion utility software
mcu_ide.exe
IDE Installer4.4012/7/2011
an107sw.zip
Implementing 16-bit PWM using the PCA
an108sw.zip
Implementing a real-time clock
an118sw.zip
Improving ADC resolution by oversampling and averaging
an140sw.zip
Integrating Hi-Tech 8051 tools into the Silicon Labs IDE
an236sw.zip
Integrating IAR 8051 tools into the Silicon Labs IDE
AN198SW.zip
Integrating SDCC 8051 tools into the Silicon Labs IDE
AN126_sw.zip
Integrating Tasking 8051 tools into the Silicon Labs IDE
IR_Performance_Analysis_Tool.zip
IR Performance Analysis Tool
KeilV8Tools_Installer.zip
Keil Eval Tools Installer
an533sw.zip
Modular bootloader framework for Silicon Labs MCUs
an358sw.zip
Optimizing Low Power Operation of the 'F9xx
MCUProductionProgrammer.zip
Production Programmer2.7012/7/2011
an115sw.zip
Software UART examples
ToolStick_Setup.exe
ToolStick Development Tools
TouchPanel_RD.zip
TouchPanel Reference Design
USB_Reset_Utility.zip
USB Debug Adapter Reset Utility
an103sw.zip
Using the on-chip temperature sensor
SiC8051F_uVision.exe
uVision Driver3.6012/7/2011
VCP_WinCE60.zip
VCP Driver for WinCE60
VCP_WinCE50.zip
VCP Drivers for WinCE50
Wireless_Meter_Bus.exe
Wireless Meter Bus
AN201SW.zip
Writing to flash from firmware

Schematics/Layout (8)

Document NameDescriptionVersionUpdated
ULADI_SiliconLabs_Reader.exe
ADI Ultra-Librarian Reader for CAD/CAE Schematic Footprints and Symbols .bxl Files
C8051F920-GM.bxl
C8051F920-GM CAD/CAE Schematic Footprints and Symbols1.0
C8051F920-GQ.bxl
C8051F920-GQ CAD/CAE Schematic Footprints and Symbols1.0
C8051F921-GM.bxl
C8051F921-GM CAD/CAE Schematic Footprints and Symbols1.0
C8051F930_GM.bxl
C8051F930-GM CAD/CAE Schematic Footprints and Symbols1.0
C8051F930_GQ.bxl
C8051F930-GQ CAD/CAE Schematic Footprints and Symbols1.0
C8051F931.bxl
C8051F931 CAD/CAE Schematic Footprints and Symbols1.0
toolstickdctemplate.zip
ToolStick Daughter Card Template

Example Code (1)

Document NameDescriptionVersionUpdated
AN463SW.zip
AN463 Deglitch Reference Code0.212/14/2010

Training (3)

Document NameDescriptionVersionUpdated
8051_Instruction_Set.pdf
8051 Instruction Set
Designing_Power_Efficient_Applications.pdf
Designing Power Efficient Applications
Simplifying Microcontroller Development through Compiler Flexibility.pdf
Simplifying Microcontroller Development through Compiler Flexibility
 

 

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Product Matrix


Part Number Available DocumentsMIPS (peak)FlashRAMDig I/O PinsTimers (16-bit)PCA ChannelsInternal Osc.ADC 1ADC 2DACTemp SensorVREFComparatorsOtherPackageAlternativeDev KitCommunications
C8051F920-GMSample
Buy
Data Sheet
Data Short
Errata
2532 kB43522446±2%10-bit, 23-ch., 300 kspsYesYes2170 µA/MHz active 50 nA sleep, dc-dc32-pin, 5x5, QFNC8051F930DK
UART, I2C, 2 SPI, Ext Mem I/F
C8051F920-GQSample
Buy
Data Sheet
Data Short
Errata
2532 kB43522446±2%10-bit, 23-ch., 300 kspsYesYes2170 µA/MHz active 50 nA sleep, dc-dc32-pin, 9x9, LQFPC8051F930DK
UART, I2C, 2 SPI, Ext Mem I/F
C8051F921-GMSample
Buy
Data Sheet
Data Short
Errata
2532 kB43521646±2%10-bit, 15ch., 300 kspsYesYes2170 µA/MHz active 50 nA sleep, dc-dc24-pin, 4x4, QFNC8051F930DK
UART, I2C, 2 SPI
C8051F930-GMSample
Buy
Data Sheet
Data Short
Errata
2564 kB43522446±2%10-bit, 23-ch., 300 kspsYesYes2170 µA/MHz active 50 nA sleep, dc-dc32-pin, 5x5, QFNC8051F930DK
UART, I2C, 2 SPI, Ext Mem I/F
C8051F930-GQSample
Buy
Data Sheet
Data Short
Errata
2564 kB43522446±2%10-bit, 23-ch., 300 kspsYesYes2170 µA/MHz active 50 nA sleep, dc-dc32-pin, 9x9, LQFPC8051F930DK
UART, I2C, 2 SPI, Ext Mem I/F
C8051F931-GMSample
Buy
Data Sheet
Data Short
Errata
2564 kB43521646±2%10-bit, 15ch., 300 kspsYesYes2170 µA/MHz active 50 nA sleep, dc-dc24-pin, 4x4, QFNC8051F930DK
UART, I2C, 2 SPI

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Lowest Voltage Operation

The C8051F92x/3x family not only provides high performance while saving power but also unprecedented functional density in a small footprint. With an integrated dc-dc converter, the C8051F92x/3x family is the industry's first MCU capable of operating down to 0.9 V, enabling single-cell battery operation and dramatically increasing battery life for dual-cell applications, utimately shrinking the form factor and cost of battery-powered products.

Maximized Power Efficiency

The C8051F92x/3x family is optimized in all operating modes to enable customers to either move to a single-cell design or increase the system's battery life by up to 2x in parallel dual-cell designs.

Highest Functional Density

With 64 kB of Flash and 4 kB of RAM in a 4 mm x 4 mm package, the C8051F92x/3x provides customers with increased memory for data-intensive applications. The small form factor makes these devices ideal for applications where end-product size is critical.

Best-in-Class Tools

The complete, low-cost professional C8051F930 Development Kit includes everything required to immediately begin system design. Silicon Labs' battery Life Estimator, a GUI-based tool that provides detials on typical battery discharge characteristics, as well as a user-editable spreadsheet inluded as part of the development kit. An inexpensive C8051F931 ToolStick Daughter Card and Base Adapter also provide a full development environment.

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Training & Resources

Featured Videos

C8051F96x and Si102x/3x DC-DC Converter Enables Extended Battery Life
C8051F96x and Si102x/3x DC-DC Converter Enables Extended Battery Life
C8051F96x and Si102x/3x Autonomous Pulse Counter for Water & Gas Meters
C8051F96x and Si102x/3x Autonomous Pulse Counter for Water & Gas Meters
Wireless Sensor Node Reference Design Overview
Wireless Sensor Node Reference Design Overview

Designing for Ultra Low-Power Operation
Designing for Ultra Low-Power Operation

Si1000 Wireless MCU in Smart Metering Applications
Si1000 Wireless MCU in Smart Metering Applications

Featured Utilities

Battery Life Calculator

Silicon Labs' Battery Life Calculator is an easy-to-use web-based utility that gives designers a quick and easy way to understand the discharge characteristics of different system configurations to help optimize low-power applications.
» Battery Life Calculator

MCU Parametric Search

Find microcontroller parts fast by specifying the specs and features you need.
» MCU Parametric Search

Cross-Reference Search Utility

Enter the part number from another company into the utility to find a list of Silicon Labs' products that can replace those parts. Once you find the products you need, you can click on the part number to see more details about the Silicon Labs' device, download the data sheet by clicking on the data sheet link, and export the results to Excel
» Cross-Reference Search Utility


Featured White Papers

Designing Power Efficient Smart Gas and Water Utility Meters

Designing a smart water or gas utility meter can present a vexing low-power challenge for embedded control systems requiring RF connectivity. Since a single service call from a technician often exceeds the entire cost of the smart meter, battery life must exceed 20 years.
» Designing Power Efficient Smart Gas and Water Utility Meters
» 积少成多:如何设计智能燃气表和水表实现能源效率最大化

Selecting the Right Battery for Your Embedded System

As batteries become more sophisticated in design and function, you must weigh a set of sometimes-conflicting requirements when determining the optimal battery type for your embedded system, including energy capacity, terminal voltage, physical dimensions, self-discharge rate, power-delivery requirements, etc.
» Selecting the Right Battery for Your Embedded System

USB Design Considerations

Choosing the right USB communications option depends on several factors, and each solution has different requirements and degrees of flexibility for both the developer and end-user. Download this white paper to determine the easiest, most cost-effective way to add USB communications to new designs or a legacy system.
» USB Design Considerations


Featured Presentations and Tutorials

8051 Instruction Set

This course takes a look at the 8051 microcontroller architecture and the associated instruction set. Included is a comprehensive look at the addressing modes and instruction operation.
» 8051 Instruction Set

C8051 Interrupt Architecture

This module provides a basic understanding of interrupts and their operation. It illustrates how the 8051 microcontroller performs asynchronous code execution as a result of internal or external events and highlights the programming requirements to implement interrupts in the MCU.
» C8051 Interrupt Architecture

External Memory Interface Controller (EMIF)

The C8051 provides internal memory as well as the ability to access external memory or peripherals using the external memory interface. This course describes the C8051 microcontroller memory architecture and how to access off-chip resources.
» External Memory Interface Controller (EMIF)

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Video: Designing for Low Power Operation

 

 

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