STMicroelectronics STM32G491RET6, 32bit ARM Cortex M4 Microcontroller MCU, STM32G4, 48MHz, 512 kB Flash, 64-Pin LQFP
- RS Stock No.:
- 215-0850
- Mfr. Part No.:
- STM32G491RET6
- Brand:
- STMicroelectronics
Available to back order for despatch 17/06/2025
Price Each (In a Pack of 2)
£6.85
(exc. VAT)
£8.22
(inc. VAT)
Units | Per unit | Per Pack* |
|---|---|---|
| 2 - 8 | £6.85 | £13.70 |
| 10 - 18 | £6.17 | £12.34 |
| 20 - 48 | £6.05 | £12.10 |
| 50 + | £5.895 | £11.79 |
*price indicative
- RS Stock No.:
- 215-0850
- Mfr. Part No.:
- STM32G491RET6
- Brand:
- STMicroelectronics
Technical Reference
Legislation and Compliance
Product Details
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
Specifications
Attribute | Value |
|---|---|
| Family Name | STM32G4 |
| Package Type | LQFP |
| Mounting Type | Surface Mount |
| Pin Count | 64 |
| Device Core | ARM Cortex M4 |
| Data Bus Width | 32bit |
| Program Memory Size | 512 kB |
| Maximum Frequency | 48MHz |
| Program Memory Type | Flash |
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