C8051F92x-F93x Ultra Low-Power MCUs

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.
 
 

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

Documentation

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Data Sheet (2)

Data Short (4)

DescriptionVersionUpdatedSize
C8051F920 Data Short
11110811/11/2008
C8051F921 Data Short
011408
C8051F930 Data Short
11110811/11/2008
C8051F931 Data Short
011408

Errata (1)

DescriptionVersionUpdatedSize
C8051F93x-92x Rev B/D/E/F Errata
0420125/9/2012

User Guides (10)

Quick Start Guide (2)

Application Notes (30)

DescriptionVersionUpdatedSize
AN0822: Simplicity Studio User's Guide
0.12/12/2014
AN0823: Simplicity Configurator User's Guide
0.12/12/2014
AN101: Configuring the Port I/O Crossbar Decoder
2.27/19/2013
AN103: Using the On-Chip Temperature Sensor
1.37/19/2013
AN104: Integrating Keil 8051 Tools into the IDE
3.06/18/2013
AN107: Implementing 16-bit PWM Using the PCA
1.1
AN111: Using the C8051Fxxx in 5 Volt Systems
1.37/20/2013
AN114: Hand Soldering Tutorial for Fine Pitch QFP Devices
1.1
AN117: Using the C8051Fxxx On-Chip Interface Utilities DLL
3.37/19/2013
AN119: Calculating Settling Time for Switched Capacitor ADCs
1.27/19/2013
AN124: Pin Sharing Techniques for the C2 Interface
1.27/19/2013
AN125: Integrating Raisonance 8051 Tools into the IDE
1.3
AN126: Integrating Tasking 8051 Tools into the Silicon Labs IDE
2.4
AN127: FLASH Programming via the C2 Interface
1.21/15/2013
AN136: Production Programming Options for MCU Devices
1.37/19/2013
AN140: Integrating HI-TECH 8051 Tools into the IDE
1.3
AN198: Integrating SDCC 8051 Tools into the Silicon Labs IDE
0.2
AN203: C8051Fxxx Printed Circuit Board Design Notes
0.27/19/2013
AN236: Integrating IAR 8051 Tools into the Silicon Laboratories IDE
0.3
AN324: Advanced Encryption Standard
0.1
AN358: Optimizing Low Power Operation of the ‘F9xx
0.411/4/2010
AN359: Debugging Techniques for the C8051F9xx and Si10xx Device Families
0.45/3/2012
AN431: C8051F93x-90x Software Porting Guide
0.112/8/2009
AN451: Wireless M-Bus Software Implementation
0.12/22/2010
AN452: Wireless M-Bus Stack Programmer's Guide
0.12/22/2010
AN533: Modular Bootloader Framework for Silicon Labs C8051Fxxx Microcontrollers
0.112/3/2010
AN568: EEPROM Emulations for Flash Microcontrollers
0.11/5/2011
AN767: SMBus Bootloader
0.14/24/2013
AN778: UART Bootloader
0.16/18/2013
AN798: EEPROM Emulation with Wear-Leveling for 8-Bit Flash MCUs
0.110/21/2013

White Papers (9)

Miscellaneous (3)

PCN (7)

Development Kits

 

One Click Access to the Latest Software, Documentation & Tools

 Simplicity Studio
One-click accessibility Simplicity Studio gives you instant access to tools, relevant documentation, software and source code libraries
Always updated Simplicity Studio automatically keeps you up-to-date with all changes affecting your development environment
World-class simplicity Simplicity Studio includes a product selector to help you speed up the MCU selection process
 

Design Tools

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Software (41)

DescriptionVersionUpdatedSize
Interfacing an External SRAM to the C8051Fxxx
16-bit PWM using an on-chip timer
8 Bits Tools Installer
4.907/23/2014
Advanced encryption standard
AN767SW: SMBus Bootloader Software
4/25/2013
AN778 Software
6/21/2013
Battery Life Estimator Installer
CapTouchSense game
Configuration Wizard 2 Installer
4.4012/11/2013
Configuring the internal and external oscillators
Configuring the Port I/O Crossbar Decoder
EEPROM emulation for flash microcontrollers
EZLink Firmware (F930/Si443x)
1.4r/b8/10/2010
Flash programming via the C2 interface
FLASHUtil Installer
4.407/23/2014
Hex to Svf conversion utility software
V 1.317/17/2012
IDE Installer
4.907/23/2014
Implementing 16-bit PWM using the PCA
Implementing a real-time clock
Improving ADC resolution by oversampling and averaging
Integrating Hi-Tech 8051 tools into the Silicon Labs IDE
Integrating IAR 8051 tools into the Silicon Labs IDE
Integrating SDCC 8051 tools into the Silicon Labs IDE
Integrating Tasking 8051 tools into the Silicon Labs IDE
IR Performance Analysis Tool
Low Pin-Count LCD Interface Software
Modular bootloader framework for Silicon Labs MCUs
Optimizing Low Power Operation of the 'F9xx
Production Programmer
3.207/23/2014
Simplicity Studio v2
v212/12/2014
Simplicity Studio v2, Linux Installer
v212/12/2014
Simplicity Studio v2, Mac Installer
v212/12/2014
Simplicity Studio v2, Offline Installer
v212/12/2014
Software UART examples
Three-Channel Power Sequencer.
ToolStick Development Tools
2.60.18/2/2013
USB Debug Adapter Reset Utility
1.76/1/2013
Using the on-chip temperature sensor
uVision Driver
4.107/23/2014
Wireless Meter Bus
Writing to flash from firmware

Schematics/Layout (14)

Example Code (1)

DescriptionVersionUpdatedSize
AN463 Deglitch Reference Code
0.212/14/2010

Training (3)

Product Matrix
Zoom
Part NumberMCU CoreMHzFlashRAMDig I/O PinsTimers (16-bit)PCA ChannelsInternal Osc.ADC 1ADC 2DACTemp SensorVREFComparatorsDebug InterfaceOtherPackage TypePackage SizeAlternativeDev KitDatasheetAEC-Q100CommunicationsFootnotes
C8051F920-GM
Buy
Sample
80512532 kB4.252446±2%10-bit, 23-ch., 300 kspsYesYes2C2170 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQFN325x5 mmC8051F930DK

NoEMIF; I2C; SPI; 2 x SPI; UART
C8051F920-GQ
Buy
Sample
80512532 kB4.252446±2%10-bit, 23-ch., 300 kspsYesYes2C2170 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCLQFP329x9 mmC8051F930DK

NoEMIF; I2C; SPI; 2 x SPI; UART
C8051F921-GM
Buy
Sample
80512532 kB4.251646±2%10-bit, 15-ch., 300 kspsYesYes2C2170 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQFN244x4 mmC8051F930DK

NoI2C; SPI; 2 x SPI; UART
C8051F930-GM
Buy
Sample
80512564 kB4.252446±2%10-bit, 23-ch., 300 kspsYesYes2C2170 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQFN325x5 mmC8051F930DK

NoEMIF; I2C; SPI; 2 x SPI; UART
C8051F930-GQ
Buy
Sample
80512564 kB4.252446±2%10-bit, 23-ch., 300 kspsYesYes2C2170 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCLQFP329x9 mmC8051F930DK

NoEMIF; I2C; SPI; 2 x SPI; UART
C8051F931-GM
Buy
Sample
80512564 kB4.251646±2%10-bit, 15-ch., 300 kspsYesYes2C2170 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQFN244x4 mmC8051F930DK

NoI2C; SPI; 2 x SPI; UART

    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, ultimately 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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