EFM8BB21F16G-C-QFN20R Xinke 8-bit microcontroller

EFM8BB21F16G-C-QFN20R Xinke 8-bit microcontroller -MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU

Manufacturer: Silicon Labs

Product type: 8-bit microcontroller -MCU

RoHS:

Core: CIP-51 8051

Program memory size: 16 kB

Data RAM size: 2.3 kB

Package / Housing: QFN-20

Maximum clock frequency: 50 MHz

ADC resolution: 12 bit

Number of input/output ports: 16 I/O

Supply voltage - minimum: 2.2 V

Supply voltage - maximum: 3.6 V

Installation style: SMD/SMT

Data bus width: 8 bit

Minimum operating temperature: -40°C

Maximum operating temperature: +85°C

Series: EFM8BB2

Package: Reel

Packaging: Cut Tape

Encapsulation: MouseReel

Trademark: Silicon Labs

Data RAM type: SRAM, XRAM

I/O voltage: 5.8 V

Interface types: I2C, SPI, UART

Humidity sensitivity: Yes

ADC channel count: 15 channels

Number of timers/counters: 5 x 16 bit

Product: MCUs

Product type: 8-bit Microcontrollers - MCU

Program memory type: Flash

one thousand and five hundred

Subcategory: Microcontrollers - MCU

Trademark name: Busy Bee

Watchdog Timer

Unit weight: 443.210 mg

 Typical application scenarios

Positioning: A low-cost, small-sized 8-bit coprocessor with larger RAM, suitable for analog acquisition and PWM control that require more variables/cache. It can be paired with STM32H743/H573 for front-end acquisition.

Low-power BLDC, DC fan, and water pump motor control (electronic speed controller, small driver board)

 Sensor acquisition board, multi-channel analog sampling (paired with INA139 for current sampling)

 Battery monitoring, BMS control board, power auxiliary management

 Small household appliances, power tools, handheld devices

 LED lighting control

 Industrial signal acquisition, IO expansion, button/encoder acquisition

As the companion MCU of H743, it is responsible for ADC acquisition, low-level PWM control of the current loop, and reporting data to the H7 main controller via I2C/SPI/UART

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For technical and business inquiries, please contact Mr. Zhang at 13430464310