C8051F90x-91x Ultra Low-Power MCUs

The C8051F90x/1x is the industry’s lowest power MCU, consuming as little as 160 µA/MHz in active mode and 10 nA in sleep mode with full memory retention. The C8051F90x/1x expands the award-winning C8051F92x/3x low power MCU product portfolio by offering lower memory devices with further power reduction and a higher resolution ADC. The C8051F90x/1x low power MCU family is fully software and hardware compatible with the C8051F92x/3x family and operates from 0.9 – 3.6 V to enable single cell battery designs.
The C8051F9xx ultra low-power microcontroller product family has been designed from the ground up to be the most power-efficient MCUs in the industry. The end result is a solution that has been optimized to be the industry’s best across all metrics necessary to be truly considered “low power”: active mode, sleep mode and wake-up time.
 
 

Features

  • Industry’s lowest active and sleep currents
  • 160 µA/MHz - active mode
  • 10 nA sleep w/BOD disabled
  • 50 nA sleep w/BOD enabled
  • 300 nA sleep w/internal RTC
  • 600 nA sleep with external crystal
  • LDO voltage regulator
  • 2 µS wake-up time
  • 1.5 µS analog settling time
  • 25 MHz, single-cycle 8051 compatible CPU
  • 12-bit ADC
  • Up to 16 kB Flash, 512 bytes SRAM
  • 768 bytes of SRAM
  • 0.9 – 3.6 V operation
 
 

Applications

Documentation

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Data Sheet (2)

Data Short (4)

DescriptionVersionUpdatedSize
C8051F901 Data Short
10.1.0912/7/2009
C8051F902 Data Short
10.1.0912/7/2009
C8051F911 Data Short
10.1.0912/7/2009
C8051F912 Data Short
10.1.0912/8/2009

User Guides (4)

Quick Start Guide (2)

Application Notes (19)

White Papers (10)

Miscellaneous (1)

DescriptionVersionUpdatedSize
C2 Specification
1.1

PCN (2)

Development Kits

 

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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
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
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 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
RF to USB Reference Design
RF to USB Reference Design
Simplicity Studio v2
v210/23/2014
Simplicity Studio v2, Linux Installer
v210/23/2014
Simplicity Studio v2, Mac Installer
v210/23/2014
Simplicity Studio v2, Offline Installer
v210/23/2014
Software UART examples
Three-Channel Power Sequencer.
ToolStick Development Tools
2.60.18/2/2013
USB Debug Adapter Reset Utility
1.76/1/2013
uVision Driver
4.107/23/2014
Wireless Meter Bus
Wireless Meter Bus Evaluation Kit
Wireless Meter Bus Stack
Writing to flash from firmware

Schematics/Layout (15)

Training (4)

Product Matrix
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Part NumberMCU CoreMHzFlashRAMDig I/O PinsTimers (16-bit)PCA ChannelsInternal Osc.ADC 1ADC 2DACTemp SensorVREFComparatorsDebug InterfaceOtherPackage TypePackage SizeAlternativeDev KitAEC-Q100CommunicationsFootnotes
C8051F901-GM8051258 kB0.751646±2%10-bit, 15-ch., 300 kspsYesYes2C2160 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQFN204x4 mmC8051F912DK
NoI2C; SPI; 2 x SPI; UART
C8051F901-GU8051258 kB0.751646±2%10-bit, 15-ch., 300 kspsYesYes2C2160 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQSOP248.65x3.90 mmC8051F912DK
NoI2C; SPI; 2 x SPI; UART
C8051F902-GM8051258 kB0.751646±2%12-bit, 15-ch., 75 kspsYesYes2C2160 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQFN244x4 mmC8051F912DK
NoI2C; SPI; 2 x SPI; UART
C8051F902-GU8051258 kB0.751646±2%12-bit, 15-ch., 75 kspsYesYes2C2160 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQSOP248.65x3.90 mmC8051F912DK
NoI2C; SPI; 2 x SPI; UART
C8051F911-GM80512516 kB0.751646±2%10-bit, 15-ch., 300 kspsYesYes2C2160 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQFN244x4 mmC8051F912DK
NoI2C; SPI; 2 x SPI; UART
C8051F911-GU80512516 kB0.751646±2%10-bit, 15-ch., 300 kspsYesYes2C2160 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQSOP248.65x3.90 mmC8051F912DK
NoI2C; SPI; 2 x SPI; UART
C8051F912-GM80512516 kB0.751646±2%12-bit, 15-ch., 75 kspsYesYes2C2160 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQFN244x4 mmC8051F912DK
NoI2C; SPI; 2 x SPI; UART
C8051F912-GU80512516 kB0.751646±2%12-bit, 15-ch., 75 kspsYesYes2C2170 µA/MHz active 50 nA sleep; dc-dc; Low Power; RTCQSOP248.65x3.90 mmC8051F912DK
NoI2C; SPI; 2 x SPI; UART
    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.
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