SILICON LABS EFM8BB51F16G-C-QFN20R

The EFM8BB51, part of the wide supply 5 Volt Busy Bee family of MCUs, is a multi-purpose line of 8-bit microcontrollers with a comprehensive feature set in small packages. These devices offer high-value by integrating advanced analog and communication peripherals into small packages, making them ideal for space-constrained applications. With an efficient 8051 core, 5 Volt capable I/O, precision analog, and enhanced pulsewidth modulation, the EFM8BB51 family is also optimal for embedded applications.

• Pipelined 8-bit C8051 core with 50 MHz maximum operating frequency
• 16 multifunction, 5 Volt capable I/O pins
• 1 x 12-bit Analog to Digital converter
• 2 x analog comparators
• Integrated temperature sensor
• 3-channel PCA w/ PWM
• 3-channel PWM engine
• 4 x 16-bit timers
• 2 x 8-bit timers
• 2 x UART
• SMBus/I2C
• SPI with 4 byte FIFO
• Priority crossbar for flexible pin mapping
• 4 x configurable logic units
• Fully compatible with standard 8051 instruction set
• 70% of instructions execute in 1 - 2 clock cycles
• Up to 16 kB flash memory, in-system re-programmable from firmware
• Up to 1280 bytes RAM
• Internal LDO regulator for CPU core voltage
• Power-on reset circuit and brownout detectors
• Snooze mode with LFO running, 10 μA and 30 μs wake
• All pins 5 V capable under bias
• Flexible peripheral crossbar for peripheral routing
• High current to allow direct drive of LEDs
• Internal 49 MHz oscillator with ± 2% accuracy
• Internal 80 kHz low-frequency oscillator with ± 3% accuracy
• Internal 10 MHz oscillator
• External CMOS clock option
• 3-channel programmable counter array (PCA) supporting PWM, capture/compare, and frequency output modes
• 3-channel PWM engine with complementary outputs and dead time insertion (DTI)
• 2 x 8-bit general-purpose timers
• 4 x 16-bit general-purpose timers
• Independent watchdog timer, clocked from the low frequency oscillator
• 2 x UART up to 3 Mbaud
• SPI Main / Secondary up to 12 Mbps
• SMBus/I2C Leader / Follower up to 400 kbps
• 16-bit CRC unit, supporting automatic CRC of flash at 256-byte boundaries
• 12-bit, 612 ksps Analog-to-Digital Converter (ADC) with 16 channels and 11-bit ENOB
• 2 x Analog comparator with adjustable reference
• 1.2 - 2.4 V precision VREF routable to external pin
• Pre-loaded UART bootloader
• 128-bit unique device identifier (UUID)
• Temperature range -40 to 85 ℃ or -40 to 125 ℃
• Single power supply 1.8 to 5.5 V
• TSSOP20 and QFN20 packages

• LED/Lighting control
• Industrial automation
• Consumer electronics
• Motor control
• Power tools