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The EFM32 series has a total of 9 types
Silicon Labs' EFM32 series has a total of 9 series, with the addition of 3 series: Happy Gecko with ultra-low power consumption and USB interface, and Jade Gecko / Pearl Gecko with encryption hardware. In addition, each series has a large number of products with different memory capacities and packages, so we can meet the detailed needs of our customers. It also has excellent compatibility between series.
EFM32 series lineup
| family | core | maximum operating speed |
flash· memory |
RAM | USB | LCD | hardware encryption |
| Zero Gecko | ARM Cortex-M0+ | 24 (MHz) | 4-32 (kB) | 2-4 (kB) | - | - | AES |
| Happy Gecko | ARM Cortex-M0+ | 25 (MHz) | 32-64 (kB) | 4-8 (kB) | ○ | - | AES |
| Tiny Gecko | ARM Cortex-M3 | 32 (MHz) | 4-32 (kB) | 2-4 (kB) | - | ○ | AES |
| Gecko | ARM Cortex-M3 | 32 (MHz) | 16-128 (kB) | 8-16 (kB) | - | ○ | AES |
| --Jade Gecko | ARM Cortex-M3 | 40 (MHz) | 128-256 (kB) | 32 (kB) | - | - | AES, ECC, SHA |
| Leopard Gecko | ARM Cortex-M3 | 48 (MHz) | 64-256 (kB) | 32 (kB) | ○ | ○ | AES |
| Giant Gecko | ARM Cortex-M3 | 48 (MHz) | 512-1024 (kB) | 128 (kB) | ○ | ○ | AES |
| Pearl Gecko | ARM Cortex-M4F | 40 (MHz) | 128-256 (kB) | 32 (kB) | - | - | AES, ECC, SHA |
| Wonder Gecko | ARM Cortex-M4F | 48 (MHz) | 64-256 (kB) | 32 (kB) | ○ | ○ | AES |
Recommended starter kit
Each series has a starter kit, but with 8 products, some of you may be wondering which one to choose. This starter kit is recommended for such people.
EFM32 Giant Gecko Starter Kit (EFM32GG-STK3700)
If you are wondering which one to choose, the EFM32GG-STK3700, which has a large built-in memory size and is well-balanced,
It is recommended.
Key Specifications of EFM32GG-STK3700 Starter Kit
- MCU: EFM32GG990F1024 (ARM Cortex-M3)
- 内蔵メモリ:Flash 1MB , RAM 128kB
- 外部メモリ:NAND 32MB
- LCD: 160 segments
- USB:ホスト/デバイス/OTG
- Sensors: ambient light sensor and inductive and capacitive metal sensors
- 2 user buttons, 2 user LEDs and touch slider
- 20 pin expansion header
For those concerned about security, the EFM32 Pearl Gecko Starter Kit (SLSTK3401A)
Equipped with AES 128/256-bit keys, SHA, ECC encryption hardware. It is recommended for those who want to incorporate security functions into low power consumption devices.
Main specifications of the EFM32 Pearl Gecko Starter Kit
- MCU: EFM32PG1B200F256GM48 (ARM Cortex-M4F)
- Built-in memory: Flash 256kB, RAM 32kB
- LCD
- Sensors: temperature/humidity sensor, ambient light sensor, inductive/capacitive metal sensor
- Capacitive touch buttons, LEDs, push buttons
- 20 pin expansion header
- encryption hardware
- AES 128/256 bit key
- SHA-1, SHA-224, SHA-256
- ECC (P-192, P-224, P-256, K-163, K-233, B-163, B-233)
EFM32 Happy Gecko Starter Kit (SLSTK3400A) if you want to use ARM Cortex-M0+
The EFM32 Happy Gecko Starter Kit is recommended for those who value cost and power consumption due to the ARM Cortex-M0+ core.
Main specifications of the EFM32 Happy Gecko Starter Kit
- MCU: EFM32HG322F64 (ARM Cortex-M0+)
- Built-in memory: Flash 64kB, RAM 8kB
- LCD
- USB:デバイス
- Sensor: temperature and humidity sensor
- Capacitive touch buttons, LEDs, push buttons
- 20 pin expansion header
In addition to the MCU, the starter kit also includes sensors, peripherals, and the SEGGER J-Link debugger for easy programming and debugging.