Lizard Labs
EFM32 Product Introduction
EFM32 – a truly unique microcontroller
CPU and Memory
Clock Management
Embedded
Trace
Macrocell
High Freq
Crystal Osc
Low Freq
Crystal Osc
High Freq
RC Osc
Low Freq
RC Osc
Auxiliary
RC Osc
Energy Management
Voltage
Regulator
Brown-out
Detector
Back-up
Power
Domain
Voltage
Comparator
Power-on
Reset
ARM Cortex-M3
ARM Cortex-M
processor
Flash
Program
Memory
RAM
Memory
Memory
Protection
Unit
Debug
Interface
DMA
Ultra Low Freq
RC Osc
32-bit bus
Peripheral Reflex System
Serial Interfaces
USART
Low
Energy
UART
USB
UART
I/O Ports
External
Bus
Interface
External
Interrupt
Pin
Reset
TFT
Driver
General
Purpose
I/O
GPIO
Wake-up
Timers and Triggers
Timer/
Counter
Low Energy
Timer
Pulse
Counter
Backup
RTC
Low Energy
Sensor IF
Real Time
Counter
Watchdog
Timer
Analog Modules
ADC
LCD
Controller
Analog
Comparator
DAC
Operational
Amplifier
Security
AES
Accelerator
I2C
Available down to:
2-Oct-13
EM0
(Run Mode)
EM1
(Sleep)
EM2
(Deep Sleep)
EM3
(Stop Mode)
EM4
(Shutoff Mode)
2
www.energymicro.com
… the world’s most energy friendly microcontrollers and radios
10 Factors That Make EFM32
The World’s Most Energy Friendly Microcontroller
Battery life vs energy consumption
Energy = Power × Time
Power
Active Mode
Power
Time
Sleep Mode
Power
Total energy
consumption
=
Active + Sleep
mode energy
2-Oct-13
4
www.energymicro.com
… the world’s most energy friendly microcontrollers and radios
Very low active
power consumption
Reduced
processing time
Very fast
wake-up time
µA/MHz
@3V
@1 MHz
µA/MHz
@3V
@25 MHz
µA/MHz
@3V
@32 MHz
Cortex-M3
DMIPS/MHz
Cortex-M3
CoreMark/MHz
Wake-up time from sleep modes
210
150
150
1.25
2.17
2 µs
2-Oct-13
5
www.energymicro.com
… the world’s most energy friendly microcontrollers and radios
电源技术
