STM NUCLEO-G431RB

STM NUCLEO-G431RB

The STM32G431x6/x8/xB devices are based on the high-performance Arm® Cortex®-M4 32-bit RISC core. They operate at a frequency of up to 170 MHz.

     The Cortex-M4 core features a single-precision floating-point unit (FPU), which supports all the Arm single-precision data-processing instructions and all the data types. It also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) which enhances the application’s security.

     These devices embed high-speed memories (up to 128 Kbytes of Flash memory, and 32 Kbytes of SRAM), an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.

     The devices also embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, securable memory area and proprietary code readout protection.

     The devices embed peripherals allowing mathematical/arithmetic function acceleration (CORDIC for trigonometric functions and FMAC unit for filter functions).

     They offer two fast 12-bit ADCs (4 Msps), four comparators, three operational amplifiers, four DAC channels (2 external and 2 internal), an internal voltage reference buffer, a low-power RTC, one general-purpose 32-bit timers, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and one 16-bit low-power timer.

     They also feature standard and advanced communication interfaces such as:

 Three I2Cs

 Three SPIs multiplexed with two half duplex I2Ss

 Three USARTs, one UART and one low-power UART.

 One FDCAN

 One SAI

 USB device

 UCPD

     The devices operate in the -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.

     Some independent power supplies are supported including an analog independent supply input for ADC, DAC, OPAMPs and comparators. A VBAT input allows backup of the RTC and the registers.

All Features

 Includes ST state-of-the-art patented technology

 Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait-state execution from Flash memory, frequency up to 170 MHz with 213 DMIPS, MPU, DSP instructions

  Operating conditions:

 VDD, VDDA voltage range: 1.71 V to 3.6 V

 Mathematical hardware accelerators

 CORDIC for trigonometric functions acceleration

 FMAC: filter mathematical accelerator

 Memories

 128 Kbytes of Flash memory with ECC support, proprietary code readout protection (PCROP), securable memory area, 1 Kbyte OTP

 22 Kbytes of SRAM, with hardware parity check implemented on the first 16 Kbytes

  Routine booster: 10 Kbytes of SRAM on instruction and data bus, with hardware parity check (CCM SRAM)

 Reset and supply management

 Power-on/power-down reset (POR/PDR/BOR)

 Programmable voltage detector (PVD)

 Low-power modes: sleep, stop, standby and shutdown

 VBAT supply for RTC and backup registers

 Clock management

 4 to 48 MHz crystal oscillator

 32 kHz oscillator with calibration

 Internal 16 MHz RC with PLL option (± 1%)

 Internal 32 kHz RC oscillator (± 5%)

 Up to 86 fast I/Os

 All mappable on external interrupt vectors

 Several I/Os with 5 V tolerant capability

 Interconnect matrix

 12-channel DMA controller

  2 x ADCs 0.25 µs (up to 23 channels). Resolution up to 16-bit with hardware oversampling, 0 to 3.6 V conversion range

 4 x 12-bit DAC channels

 2 x buffered external channels 1 MSPS

 2 x unbuffered internal channels 15 MSPS

 4 x ultra-fast rail-to-rail analog comparators

 3 x operational amplifiers that can be used in PGA mode, all terminals accessible

 Internal voltage reference buffer (VREFBUF) supporting three output voltages (2.048 V, 2.5 V, 2.9 V)

 14 timers:

 1 x 32-bit timer and 2 x 16-bit timers with up to four IC/OC/PWM or pulse counter and quadrature (incremental) encoder input

 2 x 16-bit 8-channel advanced motor control timers, with up to 8 x PWM channels, dead time generation and emergency stop

 1 x 16-bit timer with 2 x IC/OCs, one OCN/PWM, dead time generation and emergency stop

 2 x 16-bit timers with IC/OC/OCN/PWM, dead time generation and emergency stop

 2 x watchdog timers (independent, window)

 1 x SysTick timer: 24-bit downcounter

 2 x 16-bit basic timers

 1 x low-power timer

 Calendar RTC with alarm, periodic wakeup from stop/standby

 Communication interfaces

 1 x FDCAN controller supporting flexible data rate

 3 x I2C Fast mode plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, wakeup from stop

 4 x USART/UARTs (ISO 7816 interface, LIN, IrDA, modem control)

 1 x LPUART

 3 x SPIs, 4 to 16 programmable bit frames, 2 x with multiplexed half duplex I2S interface

 1 x SAI (serial audio interface)

 USB 2.0 full-speed interface with LPM and BCD support

  IRTIM (infrared interface)

 USB Type-C™ /USB power delivery controller (UCPD)

 True random number generator (RNG)

 CRC calculation unit, 96-bit unique ID

 Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell

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