EFM32G890F64G-E-BGA112

Series:	Gecko
Part Status:	Active
Core Processor:	ARM® Cortex®-M3
Core Size:	32-Bit
Speed:	32MHz
Connectivity:	EBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART
Peripherals:	Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
Number of I/O:	90
Program Memory Size:	64KB (64K x 8)
Program Memory Type:	FLASH
EEPROM Size:	--
RAM Size:	16K x 8
Voltage - Supply (Vcc/Vdd):	1.98 V ~ 3.8 V
Data Converters:	A/D 8x12b, D/A 2x12b
Oscillator Type:	Internal
Operating Temperature:	-40°C ~ 85°C (TA)

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EFM32G890F64G-E-BGA112 Application Field and Working PrincipleEmbedded microcontrollers are integrated circuits (ICs) that combine a microprocessor and additional hardware logic, called peripherals, all into one package that links directly to a motherboard or other components in a system. They feature low power, low cost and ultra-low-power solutions for smart and connected applications within constrained microcontroller solutions. EFM32G890F64G-E-BGA112 is a type of embedded microcontrollers in the EFM32 Gecko family which offers an industry-leading combination of features including maximum 32-bit performance, minimum power consumption and tie-in with vast peripheral sets.The EFM32G890F64G-E-BGA112 microcontroller is based on a 32-bit ARM Cortex-M4F CPU capable of operating at up to 48MHz and can execute up to 6 DMIPS. It includes 256K bytes of flash memory, 32K bytes of RAM and multiple peripherals like GPIOs, Timers and UARTS. It also features many advanced features, such as 6 parallel 12-bit 100K samples-per-second (ksps) ADCs, UART, I2C, and SPI that further simplifies designs and reduces system cost in many applications.The key application fields of this microcontroller mainly include:

• Industrial automation and control,
• Smart buildings and lighting,
• Medical equipment and devices,
• Automotive and pro-sumer electronics,
• Consumer electronics and IoT,
• Mobile and wearable devices and,
• Power measurement and monitoring.

The EFM32G890F64G-E-BGA112 microcontroller can also be used for applications requiring low-power, low-frequency (LFRCO) clocking or ultra-low-power, low-frequency (ULFRCO) clocking.The EFM32G890F64G-E-BGA112 microcontroller is suitable for many consumer electronics applications, including clock radios and digital picture frames. It also has applications in home automation, as it can be used to monitor and control temperature, humidity, lights and other appliances. In addition to consumer electronics, it is also suitable for subsystems in medical systems and industrial controllers.The key features of EFM32G890F64G-E-BGA112 are:

• 32-bit ARM Cortex-M4F processor with up to 48MHz clock speed,
• 256K bytes flash memory and 32K bytes RAM,
• Six 12-bit 100K samples-per-second (ksps) ADCs,
• UART, I2C, and SPI communication interfaces,
• Up to eleven 16-bit Timers,
• Up to 17 interrupts,
• Low-power and standby modes,
• Temperature and peripheral control,
• Peripheral Temperature Sensor,
• Sleep and Power-Down modes, and
• Up to 85 I/O pins.

The working principles of the EFM32G890F64G-E-BGA112 microcontroller are based on the ARM Cortex-M4F CPU core. This processor\'s architecture consists of three main components: the bus arbiter, the processor core, and the processor peripherals. The bus arbiter coordinates all the traffic between the processor and the peripherals connected to it. The processor core executes instructions and manipulates data. The processor peripherals include timers, communication protocols, and comparators. The processor core performs the following core functions: fetching the instruction from the instruction memory, intelligent execution of the instruction, and storage of the results in the data memory.The Timer module on the EFM32G890F64G-E-BGA112 microcontroller is used to generate timing resolution and are also widely used in systems for timekeeping. The timers can be used for various purposes such as timing the display refresh rate, executing a periodic process or counting the number of events. There are up to 11 16-bit timers available on this microcontroller which provide a wide range of prescaler options and are very easy to configure.ADC is used to convert analog input signals into digital values. The EFM32G890F64G-E-BGA112 microcontroller has 6 parallel analog-to-digital converters that can operate at a speed of up to 100ksps. These ADCs support various sampling techniques like single shot, continuous and scan mode. These ADCs also features high voltage and temperature range and have the capability of measuring very low signals.The GPIOs are the general-purpose input/output pins of the microcontroller which are used to connect multiple components like LEDs, force-sensors, switches, etc. The GPIOs pins can be configured as input/output pins and can be used for various applications. This microcontroller has up to 85 I/O pins which offer a wide range of options for various purposes.The EFM32G890F64G-E-BGA112 microcontroller also has a Sleep mode for ultra-low-power operation. In sleep mode, the system clock is stopped and only basic functions like real time clock, reset and wakeup are maintained. This mode allows the user to reduce power consumption while the other system functions are inactive. The Sleep mode can be exited via either of the two ways, namely, the Wake-up timer or the Interrupt.The Power-down mode is another low power mode which allows the user to completely turn off the system. In this mode, all clocks running on the microcontroller are disabled, thereby reducing the power consumption to zero. This mode can be used for applications which do not require any activity for a longer period of time.In addition to the Timer, ADC and GPIOs, there are other peripheral modules available on the EFM32G890F64G-E-BGA112 microcontroller which include UART, I2C, SPI, USB and CAN. These peripherals are designed to provide higher throughput by running the communication protocols faster and with more accuracy. Thus making them the ideal choice for higher speed transfers.The EFM32G890F64G-E-BGA112 microcontroller is a cost-effective and feature rich microcontroller with many applications. Its performance and low power consumption make it an ideal choice for low power, low-cost embedded applications. The combination of multiple peripherals and a 32-bit ARM Cortex-M4F processor allow implementing complex and reliable systems in a very small footprint. The availability of sleep, power down and low-frequency clock modes allow users to further reduce power consumption in their applications.

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