STM32G431RBI6 Description

The STM32G431RBI6 device is built around the powerful 32-bit RISC Arm? Cortex?-M4 core. They function at up to 170 MHz of frequency.

All of the Arm single-precision data-processing instructions and all data types are supported by the Cortex-M4 core's single-precision floating-point unit (FPU). Additionally, a memory protection unit (MPU) and a full set of DSP (digital signal processing) instructions are implemented, which improves the security of the application.

These components include a wide range of upgraded I/Os and peripherals connected to two APB buses, two AHB buses, and a 32-bit multi-AHB bus matrix, together with high-speed storage (128 Kbytes of Flash memory and 32 Kbytes of SRAM).

Additionally, readout protection, write protection, secure memory area, and proprietary code readout protection are all built into the devices for embedded Flash memory and SRAM.

Devices with embedded peripherals for accelerating mathematical and arithmetic operations (CORDIC for trigonometric functions and FMAC unit for filter functions).

In addition to two quick 12-bit ADCs (5 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 timer, two 16-bit PWM timers for motor control, seven general-purpose 16-bit timers, and one 16-bit low-power timer, they also provide two fast 12-bit PWM timers.

STM32G431RBI6 Features

• 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, 2.95 V)

• 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

STM32G431RBI6 Applications

• Light sensing & controlling devices

• Temperature sensing and controlling devices

• Fire detection & safety devices

• Industrial instrumentation devices

• Process control devices