EFM32™ Gecko 128k Flash, 16k RAM, AES, T/R

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EFM32G210F128-QFN32 ARM Cortex-M3 32-bit Microcontroller

The EFM32G210F128-QFN32 is a ARM Cortex-M3 based microcontroller (MCU) with speeds up to 32 MHz and is part of the Gecko family of energy friendly devices. Built on top of a low-power platform that includes innovative low energy techniques, fast wake-up times and energy saving modes the EFM32G210F128-QFN32 is ideal for energy sensitive applications. In addition, this device includes 128 kB Flash, 16 RAM, 24 Dig I/O Pins, 2 x 16-bit Timers and multiple communication interfaces. Please read the datasheet for more details.

Symmetry Electronics (and its e-commerce division: SemiconductorStore.com) is an authorized Silicon Labs distributor.


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ARM Cortex-M3 CPU platform
High Performance 32-bit processor @ up to 32 MHz
Memory Protection Unit
Wake-up Interrupt Controller
Flexible Energy Management System
20 nA @ 3 V Shutoff Mode
0.6 A @ 3 V Stop Mode, including Power-on Reset, Brown-out Detector, RAM and CPU retention
0.9 A @ 3 V Deep Sleep Mode, including RTC with 32.768 kHz oscillator, Power-on Reset, Brown-out Detector, RAM and CPU retention
45 A/MHz @ 3 V Sleep Mode
180 A/MHz @ 3 V Run Mode, with code executed from flash
128 KB Flash
24 General Purpose I/O pins
Configurable push-pull, open-drain, pull-up/down, input filter, drive strength
Configurable peripheral I/O locations
14 asynchronous external interrupts
Output state retention and wake-up from Shutoff Mode
8 Channel DMA Controller
8 Channel Peripheral Reflex System (PRS) for autonomous inter-peripheral signaling
Hardware AES with 128/256-bit keys in 54/75 cycles
2 16-bit Timer/Counter
23 Compare/Capture/PWM channels
Dead-Time Insertion on TIMER0
16-bit Low Energy Timer
1 24-bit Real-Time Counter
1 8-bit Pulse Counter
Watchdog Timer with dedicated RC oscillator @ 50 nA
Communication interfaces
2 Universal Synchronous/Asynchronous Receiver/Transmitter
UART/SPI/SmartCard (ISO 7816)/IrDA
Triple buffered full/half-duplex operation
Low Energy UART
Autonomous operation with DMA in Deep Sleep Mode
I2C Interface with SMBus support
Address recognition in Stop Mode
Ultra low power precision analog peripherals
12-bit 1 Msamples/s Analog to Digital Converter
4 single ended channels/2 differential channels
On-chip temperature sensor
12-bit 500 ksamples/s Digital to Analog Converter
2 Analog Comparator
Capacitive sensing with up to 5 inputs
Supply Voltage Comparator
Ultra efficient Power-on Reset and Brown-Out Detector
2-pin Serial Wire Debug interface
1-pin Serial Wire Viewer
Pre-Programmed UART Bootloader
Temperature range -40 to 85 C
Single power supply 1.98 to 3.8 V
QFN32 package


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Silicon Labs
ARM Cortex M3
Data Bus Width
32 bit
Data RAM Size
16 kB
Data RAM Type
Interface Type
Silicon Laboratories
Maximum Clock Frequency
32 MHz
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
Number of I/Os
24 I/O
Number of Timers
2 Timer
Operating Supply Voltage
1.8 V to 3.8 V
Processor Series
Program Memory Size
128 kB
Program Memory Type

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EFM32™ Gecko 128k Flash, 16k RAM, AES, T/R