EFM8™ Sleepy Bee 8-bit Microcontrollers (MCUs)

Optimal for low-power and battery-powered systems, Sleepy Bee EFM8™ microcontrollers (MCUs) offer the lowest power consumption available by combining innovative low-energy techniques and short wake-up times. The Sleepy Bee family of MCUs operate at up to 25 MHz and include up to 14 robust, high-sensitivity capacitive sense channels. 

Package as small as
1.6 mm x 1.8 mm
Sleep current with RTC current consumption
300 nA

Sleepy Bee Common Specs

  • Lowest MCU sleep current with supply brownout (50 nA)
  • Lowest MCU active current (150 μA / MHz at 24.5 MHz)
  • Lowest MCU wake on touch average current (< 1 μA)
  • Lowest sleep current using internal RTC and supply brownout (< 300 nA)
  • Ultra-fast wake up for digital and analog peripherals (< 2 μs)
  • Integrated LDO to maintain ultra-low active current at all voltages
  • Up to 14 capacitive sense channels
  • 25 MHz core frequency
  • Priority crossbar for flexible routing
Status
Find the Right Sleepy Bee Device Select Columns
Select Columns
Part Number MCU Core MHz Flash RAM Dig I/O Pins 5 Volt Tolerant ADC 1 USB Temp Sensor Timers (16-bit) PCA Channels DAC Comparators UART SPI I2C HS I2C Slave I2S EMIF CAN LIN AES AEC-Q100 Vdd (min) Vdd (max) Package Type Package Size (mm) Internal Osc. VREF Debug Interface Temperature Range (ºC)
8051 25 2 0.25 16 12-bit, 9-ch. 4 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 3x3 ±2 C2 -40 85
8051 25 4 0.5 16 12-bit, 9-ch. 4 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 3x3 ±2 C2 -40 85
8051 25 8 0.5 16 12-bit, 9-ch. 4 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN20 3x3 ±2 C2 -40 85
8051 25 8 0.5 17 12-bit, 9-ch. 4 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN24 4x4 ±2 C2 -40 85
8051 25 8 0.5 13 12-bit, 9-ch. 4 3 1 1 1 1 0 0 0 0 0 1.8 3.6 CSP16 1.65x1.78 ±2 C2 -40 85
8051 25 8 0.5 17 12-bit, 10-ch. 4 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QFN24 4x4 ±2 C2 -40 85
8051 25 8 0.5 17 12-bit, 10-ch. 4 3 1 1 1 1 0 0 0 0 0 1.8 3.6 QSOP24 8.7x3.9 ±2 C2 -40 85
8051 25 16 4 16 10-bit, 15-ch. 4 6 2 1 2 1 0 0 0 0 0 1.8 3.6 QFN24 4x4 ±2 C2 -40 85
8051 25 32 4 16 10-bit, 15-ch. 4 6 2 1 2 1 0 0 0 0 0 1.8 3.6 QFN24 4x4 ±2 C2 -40 85
8051 25 32 4 24 10-bit, 23-ch. 4 6 2 1 2 1 0 0 1 0 0 1.8 3.6 QFN32 5x5 ±2 C2 -40 85
8051 25 32 4 24 10-bit, 23-ch. 4 6 2 1 2 1 0 0 1 0 0 1.8 3.6 QFP32 7x7 ±2 C2 -40 85
8051 25 64 4 16 10-bit, 15-ch. 4 6 2 1 2 1 0 0 0 0 0 1.8 3.6 QFN24 4x4 ±2 C2 -40 85
8051 25 64 4 24 10-bit, 23-ch. 4 6 2 1 2 1 0 0 1 0 0 1.8 3.6 QFN32 5x5 ±2 C2 -40 85
8051 25 64 4 24 10-bit, 23-ch. 4 6 2 1 2 1 0 0 1 0 0 1.8 3.6 QFP32 7x7 ±2 C2 -40 85

Sort A -> Z
Sort Z -> A

Filter by values...

Contact Sales
Close
Loading Results