STM32G474QET6

Description

The STM32G474xB/xC/xE 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 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 (4 Msps), seven comparators, six operational amplifiers, seven DAC channels (3 external and 4 internal), an internal voltage reference buffer, a lowpower 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.

Features

• 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
• 5 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, 2.9 V)
• 17 timers:
– HRTIM (Hi-Resolution and complex waveform builder): 6 x16-bit counters, 184 ps resolution, 12 PWM