Overview
The Silicon Labs EFM8BB21F16G-C-QFN20R is a member of the EFM8 Busy Bee 2 family of 8-bit microcontrollers. This device is designed to be a standalone system-on-a-chip solution, offering a robust set of features and peripherals that make it suitable for a wide range of applications. The EFM8BB21F16G-C-QFN20R is available in a 20-pin QFN package and is lead-free and RoHS compliant. It is also qualified for automotive use, meeting AEC-Q100 standards and including PPAP documentation.
Key Specifications
| Parameter | Specification |
|---|---|
| Core Frequency | Up to 50 MHz |
| Flash Memory | 16 KB |
| RAM | 2304 bytes |
| ADC Resolution and Channels | 12-bit, 15 channels |
| DAC | — |
| SPI | 1 channel |
| UART | 2 channels |
| I2C | 1 channel, I2C Slave |
| PCA/PWM Channels | 3 channels |
| Timers (16-bit) | 5 timers |
| Package Type | QFN20 |
| Package Size (mm) | 3x3 mm |
| Temperature Range | -40 to +85 ºC (G-grade), -40 to +125 ºC (I-grade and A-grade) |
| Voltage Supply | 2.2 to 3.6 V or 3.0 to 5.25 V (with 5 V regulator option) |
Key Features
- CIP-51 Core running up to 50 MHz
- Three internal oscillators (49 MHz, 24.5 MHz, and 80 kHz)
- Pre-loaded UART bootloader for easy firmware updates
- On-chip debugging interface (C2) for non-intrusive debugging
- Reprogrammable flash memory for field upgrades
- On-chip power-on reset, voltage supply monitor, and watchdog timer
- 12-bit Analog-to-Digital Converter with integrated multiplexer, voltage reference, and temperature sensor
- 2 Analog Comparators
- 16-bit CRC Unit
- AEC-Q100 qualified for automotive applications
Applications
The EFM8BB21F16G-C-QFN20R is versatile and can be used in various applications, including:
- Automotive systems: Due to its AEC-Q100 qualification, it is suitable for automotive control systems, sensors, and other automotive-related applications.
- Industrial control: It can be used in industrial automation, motor control, and other industrial applications requiring robust and reliable microcontrollers.
- Consumer electronics: Suitable for use in consumer devices that require low power consumption and a high level of integration.
- IoT devices: Its small footprint and low power consumption make it ideal for Internet of Things (IoT) applications.
Q & A
- What is the core frequency of the EFM8BB21F16G-C-QFN20R?
Up to 50 MHz.
- How much flash memory does the EFM8BB21F16G-C-QFN20R have?
16 KB.
- What is the temperature range for the EFM8BB21F16G-C-QFN20R?
-40 to +85 ºC (G-grade), -40 to +125 ºC (I-grade and A-grade).
- Does the EFM8BB21F16G-C-QFN20R support automotive applications?
- What package type and size does the EFM8BB21F16G-C-QFN20R come in?
QFN20 package, 3x3 mm size.
- What are the key peripherals available on the EFM8BB21F16G-C-QFN20R?
Includes SPI, UART, I2C, PCA/PWM channels, and 16-bit timers.
- Is the EFM8BB21F16G-C-QFN20R lead-free and RoHS compliant?
- What is the voltage supply range for the EFM8BB21F16G-C-QFN20R?
2.2 to 3.6 V or 3.0 to 5.25 V (with 5 V regulator option).
- Does the EFM8BB21F16G-C-QFN20R support in-circuit debugging?
- What is the ADC resolution and number of channels on the EFM8BB21F16G-C-QFN20R?
12-bit, 15 channels.
