STMicroelectronics STM32G491CET6, 32 bit ARM Cortex M4, STM32G491 Microcontroller, 48 MHz, 512kB FLASH, 48-Pin LQFP

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SGD19.94

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SGD21.74

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Units
Per unit
Per Pack*
2 - 8SGD9.97SGD19.94
10 - 18SGD9.67SGD19.34
20 - 98SGD9.28SGD18.56
100 - 198SGD8.815SGD17.63
200 +SGD8.285SGD16.57

*price indicative

Packaging Options:
RS Stock No.:
215-0839
Mfr. Part No.:
STM32G491CET6
Manufacturer:
STMicroelectronics
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Brand

STMicroelectronics

Product Type

Microcontroller

Series

STM32G491

Package Type

LQFP

Mount Type

Surface

Pin Count

48

Device Core

ARM Cortex M4

Data Bus Width

32bit

Program Memory Size

512kB

Maximum Clock Frequency

48MHz

RAM Size

112kB

Maximum Supply Voltage

3.6V

DACs

4 x 12 Bit

Analogue Comparators

4

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

85°C

Standards/Approvals

No

Length

9.2mm

Height

1.6mm

Minimum Supply Voltage

1.71V

Automotive Standard

No

Program Memory Type

FLASH

ADCs

1 x 3 Bit

Instruction Set Architecture

RISC

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:

  • 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

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