MK21FN1M0VLQ12

Program Memory Type:	FLASH
Base Part Number:	MK21FN1M0
Supplier Device Package:	144-LQFP (20x20)
Package / Case:	144-LQFP
Operating Temperature:	-40°C ~ 105°C (TA)
Oscillator Type:	Internal
Data Converters:	A/D 42x16b, D/A 2x12b
Voltage - Supply (Vcc/Vdd):	1.71 V ~ 3.6 V
RAM Size:	128K x 8
EEPROM Size:	--
Series:	Kinetis K20
Program Memory Size:	1MB (1M x 8)
Number of I/O:	100
Peripherals:	DMA, I²S, LVD, POR, PWM, WDT
Connectivity:	CANbus, I²C, IrDA, SPI, UART/USART, USB, USB OTG
Speed:	120MHz
Core Size:	32-Bit
Core Processor:	ARM® Cortex®-M4
Part Status:	Not For New Designs
Packaging:	Tray

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MK21FN1M0VLQ12 is an ARM Cortex-M4-based microcontroller from NXP (formerly Freescale). This microcontroller is known for its high performance and its wide range of features and applications. It is used in a variety of embedded applications, from medical and industrial devices to consumer products. In this article, we will discuss the application fields and working principles of the MK21FN1M0VLQ12 microcontroller.The ARM Cortex-M4 is a 32-bit general-purpose microcontroller core based on the ARMv7-M architecture. The Cortex-M4 is designed for high computing performance, efficiency and extended I/O capability. The MK21FN1M0VLQ12 microcontroller can be used in a wide variety of embedded applications, including medical, industrial, consumer and automotive applications, as well as the Internet of Things (IoT).The MK21FN1M0VLQ12 microcontroller has a rich set of peripherals, including a 12-bit Analog-to-Digital Converter (ADC), two Timers, two Serial Communication Interfaces (SCI), a Real-Time Clock (RTC), four 16-bit pulse width modulators (PWM), an Secure Digital Input Output (SDIO) interface, and a Unified Clock System (UCS). It also includes an Embedded Trace Macrocell (ETM), which supports instruction trace and data trace. The ETM provides a valuable debugging feature for developers.The work principle of this ARM Cortex-M4-based microcontroller describes that the CPU is the core component responsible for managing memory, peripherals, external devices and interrupts. The CPU is responsible for executing the instructions stored in memory and interacting with the outside world. The microcontroller includes an on-chip debug unit, which enables debugging of code during development. The CPU is connected to the internal memory and peripherals through the System Bus and Data Bus. The System Bus is used to transfer data and instruction between the CPU and memory and peripherals, while the Data Bus is used to transfer data between the internal peripherals.In addition to the CPU and memory, the microcontroller also contains a number of other components, such as an interrupt controller, an external bus interface, a direct memory access controller and a watchdog timer. The interrupt controller is responsible for managing the interrupt requests from the external devices. The external bus interface enables the microcontroller to access external memory and devices. The Direct Memory Access Controller allows the microcontroller to transfer data from one peripheral to another without involving the processor. The Watchdog timer is used to reset the microcontroller if it is not functioning correctly.The MK21FN1M0VLQ12 microcontroller has a number of features that make it an attractive choice for embedded applications. It has a high level of integration, which allows it to be used in a variety of different embedded systems. It also has a low power consumption, which makes it ideal for battery operated devices. In addition, it is also very flexible, allowing developers to customize the design of their embedded systems to create the perfect solution.In conclusion, the MK21FN1M0VLQ12 microcontroller is a high-performance and feature-rich ARM Cortex-M4, making it an ideal choice for embedded applications. It has a high level of integration and low power consumption, making it suitable for battery operated devices and power-sensitive applications. Furthermore, it also offers a great degree of flexibility, allowing developers to customize their embedded systems to address a wide range of application requirements.

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