EFM8 USB Capable Universal Bee 8-bit Microcontrollers

The Universal Bee family of EFM8™ microcontrollers is ideal for space constrained USB applications. Universal Bee MCUs operate at up to 50 MHz and the family includes devices with a low power USB peripheral interface, charger detect circuit, 8 kV ESD protection, and enhanced high-speed communication interfaces. 

Features

  • Pipelined 8-bit C8051 core with 50 MHz maximum operating frequency
  • Up to 22 multifunction, 5 V tolerant I/O pins
  • Low Energy USB with full- and low-speed support saves 60% of the USB energy
  • USB charger detect circuit (USB-BCS 1.2 compliant)
  • One 12-bit ADC and two analog comparators with internal voltage DAC as reference input
  • Five 16-bit timers
  • Two UARTs, SPI, SMBus/I²C master/slave and I²C slave
  • Priority crossbar for flexible pin mapping

Get Started with EFM8 Universal Bee

Get the Universal Bee Starter Kits

Jumpstart your USB application development with one of two available starter kits for the EFM8 Universal Bee family of MCUs. 

View Starter Kits


Universal Bee Product Matrix

Common Specifications

MCU Core: 8051

MHz: 48

USB: Yes

Temp Sensor: Yes

Comparators: 2

UART: 2

SPI: 1

I2C: 2

VREF: Yes

Devices
Part Number Data Sheet Dev Kit MCU Core MHz Flash (kB) RAM (kB) 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 Internal Osc. VREF Debug Interface Temperature Range (ºC)
SLSTK2000A 8051 48 16 2 13 Yes 12-bit, 11-ch. Yes Yes 5 3 2 2 1 2 1 0 0 0 0 No No 2.2 5.25 QFN20 3x3 ±1.5 Yes C2 -40 85
SLSTK2000A 8051 48 16 2 22 Yes 12-bit, 20-ch. Yes Yes 5 3 2 2 1 2 1 0 0 0 0 No No 2.2 5.25 QFN28 5x5 ±1.5 Yes C2 -40 85
SLSTK2000A 8051 48 8 2 13 Yes 12-bit, 11-ch. Yes Yes 5 3 2 2 1 2 1 0 0 0 0 No No 2.2 3.8 QFN20 3x3 ±1.5 Yes C2 -40 85
SLSTK2000A 8051 48 16 2 17 Yes 12-bit, 15-ch. Yes Yes 5 3 2 2 1 2 1 0 0 0 0 No No 2.2 5.25 QSOP24 8.7x3.9 ±1.5 Yes C2 -40 85
SLSTK2001A 8051 48 32 2 25 Yes 10-bit, 20-ch. Yes Yes 6 5 2 2 1 2 0 0 0 0 0 No No 2.7 5.25 QFN32 5x5 ±1.5 Yes C2 -40 85
SLSTK2001A 8051 48 32 2 25 Yes 10-bit, 20-ch. Yes Yes 6 5 2 2 1 2 0 0 0 0 0 No No 2.7 5.25 QFP32 7x7 ±1.5 Yes C2 -40 85
SLSTK2001A 8051 48 32 2 40 Yes 10-bit, 32-ch. Yes Yes 6 5 2 2 1 2 0 0 1 0 0 No No 2.7 5.25 QFP48 7x7 ±1.5 Yes C2 -40 85
SLSTK2001A 8051 48 64 4 25 Yes 10-bit, 20-ch. Yes Yes 6 5 2 2 1 2 0 0 0 0 0 No No 2.7 5.25 QFN32 5x5 ±1.5 Yes C2 -40 85
SLSTK2001A 8051 48 64 4 25 Yes 10-bit, 20-ch. Yes Yes 6 5 2 2 1 2 0 0 0 0 0 No No 2.7 5.25 QFP32 7x7 ±1.5 Yes C2 -40 85
SLSTK2001A 8051 48 64 4 40 Yes 10-bit, 32-ch. Yes Yes 6 5 2 2 1 2 0 0 1 0 0 No No 2.7 5.25 QFP48 7x7 ±1.5 Yes C2 -40 85
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