About UsST Releases New Feature Rich ARM Micros in the STM32G0 Series
New features include Full Speed USB 2.0, CAN FD and dual-blank Flash program memory
STMicroelectronics has added to the STM32G0 range of Arm® Cortex®-M0+ microcontroller (MCU) series with a number of different product models and new features including dual-bank Flash, support for CAN FD and crystal-less USB Full-Speed data/host support.
The STM32G050 Value Line and mainstream STM32G051 and STM32G061 MCUs add rich analog features and up to 18KBytes of RAM, with attractively priced package options up to 48-pins. In addition, the STM32G0B0 Value Line, STM32G0B1 and STM32G0C1 MCUs introduce new features to the STM32G0 series by integrating a USB 2.0 device/host controller and also dual-bank Flash memory. The STM32G0B1 and STM32G0C1 feature ST’s FDCAN peripheral for CAN bus communication.
With the new variants that combine a USB2.0 Full Speed crystal-less data interface supporting Device and Host modes, and a USB-C Power Delivery controller, STM32G0 allows customers to develop innovative use-cases leveraging dual-role capability to extend the interoperability of new USB-C devices. Now that USB Dual Role is replacing USB On-The-Go (OTG), STM32G0 can easily change between device and host roles and change between power source and power sink with a simple USB Power Delivery command. The FDCAN block provides two CAN 2.0 interfaces and supports CAN FD to help integrate innovative functionality in industrial systems and automotive diagnostics.
Cyber-security features provide state-of-the-art protection for consumer, appliance, and industrial applications, including secure boot and firmware update (SB/SFU), Proprietary Code Read-Out Protection (PCROP) to protect manufacturers’ IP, and a Memory Protection Unit (MPU) to assist task partitioning. A number of versions are available with accelerated AES-256 hardware encryption.
With these new microcontrollers, the STM32G0 series now covers package options from 8- to 100-pins, Flash density from 16KBytes to 512KBytes, and generous program-data RAM up to 144KBytes. Flexible run and static modes ensure low power consumption, up to the maximum operating frequency of 64MHz. The high-accuracy internal clock is extremely stable over temperature, and a precision timer with resolution proportional to twice the CPU frequency is included. STM32G0 Microcontrollers have high noise immunity and are available in a number of different temperature ratings up to 125°C.
Features of the STM32G0 Arm Cortex-M0+ Value Line include
- Core: Arm® 32-bit Cortex®-M0+ CPU, frequency up to 64 MHz
- Memory
- Up to 512 Kbytes of Flash memory with protection, two banks, read-while-write support
- 144 Kbytes of SRAM (128 Kbytes with HW parity check)
- Reset and power management
- Voltage range: 2.0 V to 3.6 V
- Power-on/Power-down reset (POR/PDR)
- Low-power modes:Sleep, Stop, Standby
- VBAT supply for RTC and backup registers
- CRC calculation unit
- Clock management
- 4 to 48 MHz crystal oscillator
- 32 kHz crystal oscillator with calibration
- Internal 16 MHz RC with PLL option (±5 %)
- Internal 32 kHz RC oscillator (±5 %)
- Calendar RTC with alarm and periodic wakeup from Stop/Standby
- Up to 93 fast I/Os
- All mappable on external interrupt vectors
- Multiple 5 V-tolerant I/Os
- 12-channel DMA controller with flexible mapping
- 12-bit, 0.4 µs ADC (up to 16 ext. channels)
- Up to 16-bit with hardware oversampling
- Conversion range: 0 to 3.6V
- 12 timers: 16-bit for advanced motor control, six 16-bit general-purpose, two basic 16-bit, two watchdogs, SysTick timer
- Communication interfaces
- Three I²C-bus interfaces supporting Fast-mode Plus (1 Mbit/s) with extra current sink, two supporting SMBus/PMBus
- Six USARTs with master/slave synchronous SPI; three supporting ISO7816 interface, LIN, IrDA capability, auto baud rate detection and wakeup feature
- Three SPIs (32 Mbit/s) with 4- to 16-bit programmable bitframe, two multiplexed with I²S interface
- USB 2.0 FS device and host controller
- Development support: serial wire debug (SWD)
More information on the STM32G0 Arm Cortex-M0+ Value Line is available on the ST website at STM32G0x0 Value Line series page.
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In particular, STM32 is registered in the US Patent and Trademark Office.
The STMicroelectronics website address is www.st.com
[Reprinted with kind permission from STMicroelectronics - Release Date, 24th June, 2021]