EFM32™ Zero Gecko MCU 16k Flash, 4k RAM, ADC, AES, T/R

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Product Information

The EFM32ZG222F16-QFP48 is a ARM Cortex-M0+ based microcontroller (MCU) with speeds up to 24 MHz and is part of the Zero 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 EFM32ZG222F16-QFP48 is ideal for energy sensitive applications. In addition, this device includes 16 kB Flash, 4 RAM, 37 Dig I/O Pins, 2 x 16-bit Timers and multiple communication interfaces.

32-bit ARM Cortex-M0+, Cortex-M3 and Cortex-M4 microcontrollers for:

• Energy, gas, water and smart metering
• Health and fitness applications
• Smart accessories
• Alarm and security systems
• Industrial and home automation

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


ARM Cortex-M0+ CPU platform
High Performance 32-bit processor @ up to 24 MHz
Wake-up Interrupt Controller
Flexible Energy Management System
20 nA @ 3 V Shutoff Mode
0.5 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
48 A/MHz @ 3 V Sleep Mode
114 A/MHz @ 3 V Run Mode, with code executed from flash
32/16/8/4 KB Flash
4/4/2/2 KB RAM
37 General Purpose I/O pins
Configurable push-pull, open-drain, pull-up/down, input filter, drive strength
Configurable peripheral I/O locations
16 asynchronous external interrupts
Output state retention and wake-up from Shutoff Mode
4 Channel DMA Controller
4 Channel Peripheral Reflex System (PRS) for autonomous inter-peripheral signaling
Hardware AES with 128-bit keys in 54 cycles
2 16-bit Timer/Counter
23 Compare/Capture/PWM channels
1 24-bit Real-Time Counter
1 16-bit Pulse Counter
Watchdog Timer with dedicated RC oscillator @ 50 nA
Communication interfaces
Universal Synchronous/Asynchronous Receiver/Transmitter
UART/SPI/SmartCard (ISO 7816)/IrDA/I2S
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/ differential channels
On-chip temperature sensor
Current Digital to Analog Converter
Selectable current range between 0.05 and 64 uA
1 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
Pre-Programmed UART Bootloader
Temperature range -40 to 85 C
Single power supply 1.98 to 3.8 V
TQFP48 package


Silicon Labs
ARM Cortex M0
Data Bus Width
32 bit
Data RAM Size
4 kB
Data RAM Type
Interface Type
Silicon Laboratories
Mounting Style
Number of Timers
2 Timer
Operating Supply Voltage
3 V
Processor Series
Program Memory Size
16 kB
Program Memory Type


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