Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

EFM8BB21F16I-C-QFN20R part of the Busy Bee family of MCUs, is a multipurpose line of 8-bit microcontrollers with a comprehensive feature set in small packages.

EFM8BB21F16I-C-QFN20R offer high-value by integrating advanced analog and enhanced highspeed communication peripherals into small packages, making them ideal for space-constrained applications.

Product Features

Pipelined CIP-51 Core

Fully compatible with standard 8051 instruction set

70% of instructions execute in 1-2 clock cycles

50 MHz maximum operating frequency

Up to 16 KB flash memory

Up to 2304 bytes RAM

5 V-input LDO regulator

Internal LDO regulator for CPU core voltage

Power-on reset circuit and brownout detectors

5 x 16-bit general-purpose timers

2 x UART, up to 3 Mbaud

SPI™ Master / Slave, up to 12 Mbps

SMBus™/I2C™ Master / Slave, up to 400 kbps

I2C High-Speed Slave, up to 3.4 Mbps

16-bit CRC unit, supporting automatic CRC of flash at 256- byte boundaries

Temperature range -40 to 85 ºC or -40 to 125 ºC

Automotive grade available (requires PPAP)

Single power supply of 2.2 to 3.6 V or 3.0 to 5.25 V

Applications

Motor control

Consumer electronics

Sensor controllers

Medical equipment

Lighting systems

High-speed communication hub

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.