EFM32™ Leopard Gecko 32-bit Microcontroller

Our EFM32™ Leopard Gecko low-power microcontroller (MCU) family offers up to 256 kB of flash memory with the added option of embedded USB connectivity, direct-drive TFT, and CPU speeds up to 48 MHz.

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.

Sleep current with RTC as low as
0.95 μA
Active current as low as
211 μA/MHz

Leopard Gecko Common Specs

  • ARM Cortex-M3 CPU platform
  • 48 MHz
  • Up to 256 Flash
  • Up to 32 kB RAM
  • 211 μA/MHz in Active Mode (EM0)
  • 0.95 μA sleep with RTC and RAM retention
  • Autonomous peripherals in sleep
  • DMA and peripheral reflex system
  • LESENSE
  • USART, I²C, SPI, and USB
  • Up to 93 General Purpose I/O Pins
  • -40 °C to +85 °C operation range
  • 1.98 V to 3.8 V single power supply
  • Packages:
    • 64-pin QFN (9 mm x 9 mm)
    • 64-pin QFP (10 mm x 10 mm)
    • 81-pin WLCSP (4.36 mm x 4.28 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)

Status

Find the Right Leopard Gecko Device Select Columns
Select Columns
Part Number MHz Flash RAM Dig I/O Pins 5 Volt Tolerant ADC 1 DAC USB Cap Sense LCD Temp Sensor Timers (16-bit) AES-128 AES-256 ECC SHA-1 SHA-2 RSA-2048 UART USART SPI I2C I2S EMIF RTC Comparators Vdd (min) Vdd (max) Package Type Package Size (mm) Internal Osc. Debug Interface Cryptography
48 128 32 56 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 2 1.98 3.8 QFN64 9x9 ±2% ETM; SW AES-128 AES-256
48 256 32 56 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 2 1.98 3.8 QFN64 9x9 ±2% ETM; SW AES-128 AES-256
48 64 32 56 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 2 1.98 3.8 QFN64 9x9 ±2% ETM; SW AES-128 AES-256
48 128 32 53 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 2 1.98 3.8 QFP64 10x10 ±2% ETM; SW AES-128 AES-256
48 256 32 53 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 2 1.98 3.8 QFP64 10x10 ±2% ETM; SW AES-128 AES-256
48 256 32 86 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 QFP100 14x14 ±2% ETM; SW AES-128 AES-256
48 256 32 90 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 BGA112 10x10 ±2% ETM; SW AES-128 AES-256
48 256 32 93 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 BGA120 7x7 ±2% ETM; SW AES-128 AES-256
48 256 32 53 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 2 1.98 3.8 QFN64 9x9 ±2% ETM; SW AES-128 AES-256
48 256 32 50 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 1 1.98 3.8 QFP64 10x10 ±2% ETM; SW AES-128 AES-256
48 256 32 83 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 QFP100 14x14 ±2% ETM; SW AES-128 AES-256
48 128 32 56 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 2 1.98 3.8 QFN64 9x9 ±2% ETM; SW AES-128 AES-256
48 64 32 56 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 2 1.98 3.8 QFN64 9x9 ±2% ETM; SW AES-128 AES-256
48 256 32 53 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 2 1.98 3.8 QFP64 10x10 ±2% ETM; SW AES-128 AES-256
48 128 32 86 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 QFP100 14x14 ±2% ETM; SW AES-128 AES-256
48 256 32 86 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 QFP100 14x14 ±2% ETM; SW AES-128 AES-256
48 256 32 90 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 BGA112 10x10 ±2% ETM; SW AES-128 AES-256
48 256 32 93 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 BGA120 7x7 ±2% ETM; SW AES-128 AES-256
48 128 32 53 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 5 3 3 2 1 0 1 1.98 3.8 QFN64 9x9 ±2% ETM; SW AES-128 AES-256
48 128 32 83 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 QFP100 14x14 ±2% ETM; SW AES-128 AES-256
48 256 32 83 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 QFP100 14x14 ±2% ETM; SW AES-128 AES-256
48 256 32 87 12-bit, 8-ch., 1 Msps 12-bit, 2 ch. 4 AES-256 7 3 3 2 1 0 2 1.98 3.8 BGA112 10x10 ±2% ETM; SW AES-128 AES-256

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