Leopard Gecko
EFM32 Leopard Gecko 32-bit Microcontroller
Manufacturer: Silicon Labs

Based on the powerful ARM® Cortex®-M3 core, the Leopard Gecko family features innovative low energy techniques, short wake-up time from energy saving modes and a wide selection of peripherals, making it ideal for battery operated applications and other systems requiring high performance and low-energy consumption.
Features
- 48 MHz ARM Cortex-M3 CPU
- Up to 256 kB flash
- 32 kB RAM
- Up to 93 GPIOs
- Flexible energy management system with 5 different energy modes:
- 20 nA shutoff mode (0.4 µA with RTC)
- 0.65 µA stop mode, including power-on-reset, brown-out detector, RAM and CPU retention
- 0.95 µA deep sleep mode, including RTC with 32.768 kHz oscillator, power-on-reset, brown-out detector, RAM and CPU retention
- 63 µA/MHz sleep mode
- 211 µA/MHz run mode with code executed from flash
- Ultra low power precision and analog peripherals:
- 12-bit 1 Msps ADC
- 12-bit 500 ksps DAC
- Up to 8x36 segment LCD controller (9xx/8xx only)
- Low power sensor interface (LESENSE):
- Autonomous sensor monitoring in deep sleep
- Supports wide range of sensors, including LC sensors and capacitive buttons
- 1.98–3.8 V supply voltage
- Debug interface
- Temperature range: –40 to +85 °C
- Packages:
- 64-pin QFN (9 mm x 9 mm)
- 64-pin QFP (10 mm x 10 mm)
- 100-pin QFP (14 mm x 14 mm)
- 112-pin BGA (10 mm x 10 mm)
- 120-pin BGA (7 mm x 7 mm)
- 81-pin WLCSP81 (4.36 mm x 4.28 mm)
- Full Wafer Option