STM32F411CEU6 MCU: Specifications, Pinout, Features, and Applications

STM32F411CEU6 MCU Basic

Description

The STM32F411CEU6 device is based on the high-performance Arm® Cortex® -M4 32-bit RISC core operating at a frequency of up to 100 MHz. The Cortex®-M4 core features a floating point unit (FPU) single precision which supports all Arm single-precision data processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.

STM32F411CEU6 belongs to the STM32 Dynamic Efficiency™ product line (with products combining power efficiency, performance and integration) while adding a new innovative feature called Batch Acquisition Mode (BAM) allowing to save even more power consumption during data batching. It incorporates high-speed embedded memories (up to 512 Kbytes of Flash memory, 128 Kbytes of SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB bus and a 32-bit multi-AHB bus matrix. All devices offer one 12-bit ADC, a low-power RTC, six general-purpose 16-bit timers including one PWM timer for motor control, two general-purpose 32-bit timers. They also feature standard and advanced communication interfaces.

Features

• Dynamic Efficiency Line with BAM (Batch Acquisition Mode)
• 125 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1) and DSP instructions
• Clock, reset and supply management (internal (16MHz factory-trimmed RC, 32KHz RC with calibration))
• POR, PDR, PVD and BOR
• 1x12bit, 2.4 MSPS A/D converter: up to 16 channels
• General-purpose DMA: 16-stream DMA controllers with FIFOs and burst support
• Up to 11 timers and up to 81 I/O ports with interrupt capability
• Serial wire debug (SWD) & JTAG interfaces and Cortex®-M4 embedded trace Macrocell™
• CRC calculation unit and 96-bit unique ID
• RTC: subsecond accuracy, hardware calendar

Pinouts and Pin Description

Figure 1.

Power Supply Scheme

Figure 2.

Datasheet Download

Compliance and Environment

Related Interface Information

ISO/IEC 7816 is a series of standards specifying integrated circuit cards and the use of such cards for interchange. These cards are identification cards intended for information exchange negotiated between the outside world and the integrated circuit in the card. As a result of an information exchange, the card delivers information (computation result, stored data) and/or modifies its content (data storage, event memorization).

The I2C bus is a standard bidirectional interface that uses a controller, known as the master, to communicate with slave devices.

Working of I2C Communication Protocol:

It uses only 2 bi-directional open-drain lines for data communication called SDA and SCL. Both these lines are pulled high.

Serial Data (SDA) – Transfer of data takes place through this pin.

Serial Clock (SCL) – It carries the clock signal.

I2C operates in 2 modes: Master mode and Slave mode

The following figure illustrates how many different peripherals may share a bus which is connected to a processor through only 2 wires, which is one of the largest benefits that the I2C bus can give when compared to other interfaces.

Figure 3: Example I2C Bus

The USART is a very flexible serial interface that supports: asynchronous UART communication, SPI (serial peripheral interface) master mode, and LIN (local interconnect network) mode. It can also interface with ISO/IEC 7816 smartcards and IrDA devices.

SPI is an interface bus commonly used to send data between microcontrollers and small peripherals such as shift registers, sensors, and SD cards. It uses separate clock and data lines, along with a select line to choose the device you wish to talk to.

The Integrated Inter-IC Sound Bus (I2S) is a serial bus interface standard used for connecting digital audio devices together. The I2S protocol sends pulse-code modulation (PCM) audio data from a controller to a target. It has at least three lines: the bit clock, the word select, and a data line. Word select is used to specify which of the stereo channel, left or right, the data should be sent to.

Applications

STM32F411CEU6 MCU is suitable for use in motor drive and application control, medical equipment, industrial applications such as PLC, inverters, circuit breakers, printers and scanners, alarm systems, video intercom and HVAC, home audio appliances and mobile phone sensor hub.