EFM8™ Universal Bee 8-bit Microcontrollers (MCUs)

The Universal Bee family of EFM8™ microcontrollers (MCUs) is ideal for space constrained USB applications. Universal Bee MCUs operate at up to 48 MHz and the family includes devices with a low-power USB 2.0 peripheral interface, charger detect circuit, 8 kV ESD protection, and enhanced high-speed communication interfaces.

USB
Full Speed USB 2.0
Core frequency
48 MHz

Universal Bee Common Specs

  • Pipelined 8-bit C8051 core with 48 MHz maximum operating frequency
  • 5 V tolerant I/O pins
  • Low Energy USB with full- and low-speed support saves 60% of the USB power consumption
  • USB charger detect circuit (USB-BCS 1.2 compliant)
  • 12-bit ADC
  • Two analog comparators with internal voltage DAC for reference
  • 16-bit timers
  • UARTs, SPI, SMBus/I²C master/slave and I²C slave
  • Priority crossbar for flexible pin mapping
Status
Find the Right Universal 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 EMIF CAN LIN AES AEC-Q100 Vdd (min) Vdd (max) Package Type Package Size (mm) Internal Osc. VREF Debug Interface Temperature Range (ºC)
8051 48 16 2 13 12-bit, 11-ch. 5 3 2 2 1 2 0 0 0 2.2 5.25 QFN20 3x3 ±1.5 C2 -40 85
8051 48 16 2 22 12-bit, 20-ch. 5 3 2 2 1 2 0 0 0 2.2 5.25 QFN28 5x5 ±1.5 C2 -40 85
8051 48 8 2 13 12-bit, 11-ch. 5 3 2 2 1 2 0 0 0 2.2 3.8 QFN20 3x3 ±1.5 C2 -40 85
8051 48 16 2 17 12-bit, 15-ch. 5 3 2 2 1 2 0 0 0 2.2 5.25 QSOP24 8.7x3.9 ±1.5 C2 -40 85
8051 48 32 2 25 10-bit, 20-ch. 6 5 2 2 1 2 0 0 0 2.7 5.25 QFN32 5x5 ±1.5 C2 -40 85
8051 48 32 2 25 10-bit, 20-ch. 6 5 2 2 1 2 0 0 0 2.7 5.25 QFP32 7x7 ±1.5 C2 -40 85
8051 48 32 2 40 10-bit, 32-ch. 6 5 2 2 1 2 1 0 0 2.7 5.25 QFP48 7x7 ±1.5 C2 -40 85
8051 48 64 4 25 10-bit, 20-ch. 6 5 2 2 1 2 0 0 0 2.7 5.25 QFN32 5x5 ±1.5 C2 -40 85
8051 48 64 4 25 10-bit, 20-ch. 6 5 2 2 1 2 0 0 0 2.7 5.25 QFP32 7x7 ±1.5 C2 -40 85
8051 48 40 3 13 12-bit, 12-ch. 6 3 2 1 1 1 0 0 0 2.7 5.25 QFN20 3x3 ±1.5 C2 -40 85
8051 48 40 3 17 12-bit, 16-ch. 6 3 0 2 1 1 1 0 0 0 2.7 5.25 QFN24 4x4 ±1.5 C2 -40 85
8051 48 40 3 17 12-bit, 16-ch. 6 3 2 1 1 1 0 0 0 2.7 5.25 QSOP24 8.7x3.9 ±1.5 C2 -40 85

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