EFM8BB31F64I-B-QFP32R

Program Memory Size:	64KB (64K x 8)
Supplier Device Package:	32-QFP (7x7)
Package / Case:	32-TQFP
Operating Temperature:	-40°C ~ 125°C (TA)
Oscillator Type:	Internal
Data Converters:	A/D 20x12b, D/A 4x12b
Voltage - Supply (Vcc/Vdd):	2.2 V ~ 3.6 V
RAM Size:	4.25K x 8
EEPROM Size:	--
Program Memory Type:	FLASH
Series:	Busy Bee
Number of I/O:	28
Peripherals:	Brown-out Detect/Reset, POR, PWM, WDT
Connectivity:	I²C, SMBus, SPI, UART/USART
Speed:	50MHz
Core Size:	8-Bit
Core Processor:	CIP-51 8051
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The EFM8BB31F64I-B-QFP32R is a microcontroller (MCU) of the EFM8 series manufactured by Silicon Labs. This device offers high performance, ultra-low power operation, an extensive feature set and on-chip flash memory to make it an ideal solution for a wide range of embedded applications. It is a 32-pin QFP (Quad Flat-Pack) integrated circuit (IC) with a 32-bit processor, 256KB flash memory and 12KB of RAM at 80-MHz operation. This IC is used extensively in the embedded control field, providing an efficient and powerful computing solution while its low power characteristics ensure long lasting battery life.

Application Field

The EFM8BB31F64I-B-QFP32R IC is used extensively in embedded control applications. It is capable of providing processing power for applications featuring Internet of Things (IoT) connectivity such as heating, cooling, management of illumination and device-to-device communication. Its low power characteristics make it well suited for applications in which battery life must be optimized, and it can be used in a wide range of industrial, consumer and automotive embedded applications.

Working Principle

At the core of the EFM8BB31F64I-B-QFP32R is the EFM8 processor. This 32-bit embedded processor features two data ports that run up to 80-MHz. The external memory interface supports up to 256KB of off-chip flash memory, as well as 12KB of on-chip RAM. The chip has an extensive peripheral set, including timers, crystal oscillators, pulse width modulation (PWM) outputs, analog comparators, an analog-to-digital converter (ADC) and an advanced watchdog timer (AWDT).In order to make the most use of this feature set, the EFM8BB31F64I-B-QFP32R is typically used in conjunction with a software development tool such as the Code Composer Studio (CCS) by Texas Instruments. This development platform provides an easy to use graphical user interface (GUI) with access to the necessary advanced features. The chip also has an internal clock generator that can be used to set the CPU frequency, as well as the crystal frequency. The chip is also capable of supporting several different code and data memory models, making it an ideal solution for systems that require the use of multiple different code models.In addition to its low power requirements, the EFM8BB31F64I-B-QFP32R features an onboard LCD controller for simple LCD display applications. This provides a cost effective solution for simple LCD displays, but more complex displays may require a dedicated LCD display controller.

Conclusion

The EFM8BB31F64I-B-QFP32R is a high-performance, low-power microcontroller with an extensive feature set and on-chip flash memory. It is an ideal solution for embedded control applications, particularly those requiring internet connectivity, long battery life, or LCD display applications. Its advanced feature set, including the clock generator, timers, crystal oscillators, PWM outputs, ADC and AWDT, provide a robust, feature rich microcontroller platform that can handle a wide range of applications. Moreover, the on-board LCD controller provides a cost-effective solution for simple LCD display applications.

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