STMicroelectronics STM32G491RET6, 32 bit ARM Cortex M4, STM32G491 Microcontroller, 48 MHz, 512kB FLASH, 100-Pin BGA

Mainstream Arm Cortex-M4 MCU 170 MHz with 512 Kbytes of Flash memory, Math Accelerator, High Analog level integration

The STMicroelectronics STM32G491xC/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 (512 Kbytes of Flash memory, and 112 Kbytes of SRAM), a Quad SPI Flash memory interface, 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 three fast 12-bit ADCs (5 Msps), four comparators, four 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, three 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:

<li>Three I2Cs</li>;<li>Three SPIs multiplexed with two half duplex I2Ss</li>;<li>Three USARTs, two UARTs and one low-power UART.</li>;<li>Two FDCANs</li>;<li>One SAI</li>;<li>USB device</li>;<li>UCPD</li>

• 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.;The STM32G491xC/xE family offers 9 packages from 32-pin to 100-pin.

Key Features

• <h4>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</h4><h4>Operating conditions:</h4><ul><li>V_DD, V_DDA voltage range: 1.71 V to 3.6 V</li></ul><h4>Mathematical hardware accelerators</h4><ul><li>CORDIC for trigonometric functions acceleration</li><li>FMAC: filter mathematical accelerator</li></ul><h4>Memories</h4><ul><li>512 Kbytes of Flash memory with ECC support, proprietary code readout protection (PCROP), securable memory area, 1 Kbyte OTP</li><li>96 Kbytes of SRAM, with hardware parity check implemented on the first 32 Kbytes</li><li>Routine booster: 16 Kbytes of SRAM on instruction and data bus, with hardware parity check (CCM SRAM)</li><li>Quad-SPI memory interface</li></ul><h4>Reset and supply management</h4><ul><li>Power-on/power-down reset (POR/PDR/BOR)</li><li>Programmable voltage detector (PVD)</li><li>Low-power modes: sleep, stop, standby and shutdown</li><li>V_BAT supply for RTC and backup registers</li></ul>;<h4>Clock management</h4><ul><li>4 to 48 MHz crystal oscillator</li><li>32 kHz oscillator with calibration</li><li>Internal 16 MHz RC with PLL option (± 1%)</li><li>Internal 32 kHz RC oscillator (± 5%)</li></ul><h4>Up to 86 fast I/Os</h4><ul><li>All mappable on external interrupt vectors</li><li>Several I/Os with 5 V tolerant capability</li></ul><h4>Interconnect matrix</h4><h4>16-channel DMA controller</h4><h4>3 x ADCs 0.25 µs (up to 36 channels). Resolution up to 16-bit with hardware oversampling, 0 to 3.6 V conversion range</h4><h4>4 x 12-bit DAC channels</h4><ul><li>2 x buffered external channels 1 MSPS</li><li>2 x unbuffered internal channels 15 MSPS</li></ul><h4>4 x ultra-fast rail-to-rail analog comparators</h4><h4>4 x operational amplifiers that can be used in PGA mode, all terminals accessible</h4><h4>Internal voltage reference</h4>