Demoboard B-G474E-DPOW1

MCU Arm® Cortex®-M4 32-bit RISC core

Topologie: Buck-Boost
Eingangsspannung (min.): 2.20 V
Eingangsspannung (max.): 40.00 V
Schaltfrequenz (min.): 1.00 kHz
Schaltfrequenz (max.): 170.00 kHz
Ausgang 1: 40.00 V / 0.500 A

Erstveröffentlichung am 01.07.2019, Version Rev 1 vom


The STM32G474xx 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 (512 Kbytes of Flash memory, and 128 Kbytes of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), a Quad SPI Flash memory interface, and 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 five fast 12-bit ADCs (5 Msps), seven comparators, six operational amplifiers, seven DAC channels (3 external and 4 internal), an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timers, three 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and one 16-bit low-power timer, and high resolution timer with 184 ps resolution.


  • 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 512 Kbytes of Flash memory with ECC support, two banks read-while-write, proprietary code readout protection (PCROP), securable memory area, 1 Kbyte OTP 96 Kbytes of SRAM, with hardware parity check implemented on the first 32 Kbytes Routine booster: 32 Kbytes of SRAM on instruction and data bus, with hardware parity check (CCM SRAM) External memory interface for static memories FSMC supporting SRAM, PSRAM, NOR and NAND memories Quad-SPI memory interface
  • 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 107 fast I/Os All mappable on external interrupt vectors Several I/Os with 5 V tolerant capability
  • Interconnect matrix
  • 16-channel DMA controller
  • 25 x 12-bit ADCs 0.25 μs , up to 42 channels. Resolution up to 16-bit with hardware oversampling, 0 to 3.6 V conversion range
  • 7 x 12-bit DAC channels 3 x buffered external channels 1 MSPS 4 x unbuffered internal channels 15 MSPS
  • 7 x ultra-fast rail-to-rail analog comparators
  • 6 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, 2.95 V)
  • 17 timers: HRTIM (Hi-Resolution and complex waveform builder): 6 x16-bit counters, 184 ps resolution, 12 PWM 2 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 3 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 3 x FDCAN controller supporting flexible data rate 4 x I2C Fast mode plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, wakeup from stop 5 x USART/UARTs (ISO 7816 interface, LIN, IrDA, modem control) 1 x LPUART 4 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


  Artikel Nr. SPEC Produktserie L
RDC typ.
RDC max.
Montageart C
(V (DC))
Betriebstemperatur Ø D
Technische Artikelnummer Muster
74437358068 PDF WE-LHMI SMT Speicherdrossel 6.8 6.1 13.5 29.2 33.4 12 SMT
865060553006 PDF WCAP-ASLL Aluminium-Elektrolytkondensatoren 100 35 35 14 450 0.17 -55 °C up to +105 °C 8 10.5 ASEE105101M035DVCTEE000