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    STM32G491CET6

    STM32G491CET6

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    STM32G491CEU6

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    Mainstream Arm Cortex-M4 MCU 170 MHz with 512 Kbytes of Flash memory, Math Accelerator, High Analog level integration
    Learn More about STM32G491CEU6

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    $9.83
    Parameter NameParameter Value
    Supply Voltage Min Volt1.71
    Supply Voltage Max Volt3.6
    Operating Temp Min Celsius-40.0
    Operating Temp Max Celsius85.0
    CoreArm Cortex-M4
    ECCN US3A991.a.2
    ECCN EUNEC
    Packing TypeTray
    RoHs compliantEcopack2
    GradeIndustrial
    Package NameUFQFPN 48 7x7x0.55 mm

    The 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:


    - Three I2Cs


    - Three SPIs multiplexed with two half duplex I2Ss


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


    - Two FDCANs


    - 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.


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

    Key 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, 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: 16 Kbytes of SRAM on instruction and data bus, with hardware parity check (CCM SRAM)
      • 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 86 fast I/Os
      • All mappable on external interrupt vectors
      • Several I/Os with 5 V tolerant capability
    • Interconnect matrix
    • 16-channel DMA controller
    • 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
    • 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
    • 4 x operational amplifiers that can be used in PGA mode, all terminals accessible
    • Internal voltage reference