STMicro unveils STM32MP2 Arm Cortex-A35/M33 MPU family starting with STM32MP25

STM32MP25 block diagram

STMicro has introduced its second generation of its STM32 MPUs (microprocessors) with the STM32MP2 moving to a 64-bit Arm architecture with Edge AI acceleration, multimedia features, graphics processing, and digital connectivity targeting industrial and IoT edge applications. The new family follows the STM32MP1 Arm Cortex-A7/M4 series introduced in 2019, and the first member of the family is the STM32MP25 with up to two 1.5 GHz Cortex-A35 cores coupled with an Arm Cortex-M33 real-time core clocked at 400 MHz, a 3D GPU, and a 1.35 TOPS NPU for AI acceleration. STM32MP25 key features and specifications: CPU – Single or dual Arm Cortex-A35 cores running up to 1.5 GHz Real-time MCU – Arm Cortex-M33 core running up to 400 MHz GPU – Unnamed 3D GPU for “advanced HMI” with support for the Vulkan API VPU – H.264 hardware video decoder and encoder AI accelerator – 1.35 TOPS NPU (Neural processing unit) System […]

Nordic Semi nRF54H20 Cortex-M33 + RISC-V wireless SoC supports Bluetooth 5.4, LE Audio, Bluetooth mesh, Thread, Matter, and more


Nordic Semi nRF54H20 is a 320 MHz multiprotocol wireless SoC with several Arm Cortex-M33 and RISC-V cores, support for Bluetooth 5.4 and greater with features like LE Audio and Bluetooth mesh, as well as Thread, Matter, and so on. It is the first part of the fourth generation nRF54 family manufactured with a 22nm process, and its application processor doubles the processing power (2x CoreMark) of the Arm Cortex-M33 application core in the nRF5340 SoC and embeds up to 2MB flash, 1MB SRAM. nRF54H20 preliminary specifications and highlights: CPU Application core  – Arm Cortex-M33 @ up to 320 MHz with 2 MB Flash + 1MB SRAM Network core –  Arm Cortex-M33 Several RISC-V cores (for low power?) Wireless Bluetooth 5.4 LE with direction-finding, Bluetooth mesh, LE audio, etc… 802.15.4 radio for Thread, Matter -100 dBm RX sensitivity @ 1 Mbps for Bluetooth LE Up to 10 dBm TX power New […]

Renesas introduces 100 MHz RA4E2 and 200 MHz RA6E2 Arm Cortex-M33 MCUs for wearables, sensors, appliances

Renesas RA4E2 RA6E2

Renesas Electronics has added two new groups to its 32-bit RA family of microcontrollers (MCUs) with the 100 MHz RA4E2 and 200 MHz RA6E2 Arm Cortex-M33 microcontrollers designed for “high-performance applications” in small packages such as sensing, gaming, wearables, and appliances. The new microcontrollers are equipped with 40 KB SRAM, 128 KB or 256 KB flash, and integrate various on-chip interfaces such as CAN FD, USB, QSPI, SSI, and I3C interfaces to offer an easy upgrade path for products based on other members of the Renesas RA Family. Renesas RA4E2 MCU group Both the RA4E2 and the RA6E2 are the most cost-effective microcontroller groups of the RA family with integrated CAN FD,  with the RA4E2 group especially well-suited to cost-sensitive applications and other systems requiring relatively high performance, low power consumption, and/or small package size. RA4E2 key features: CPU – Arm Cortex-M33 core with TrustZone @ up to 100 MHz […]

Portenta C33 is a lower cost Arduino Pro board based on Renesas RA6M5 Arm Cortex-M33 MCU

Arduino Portenta C33

Arduino Portenta C33 is the latest board from the Arduino Pro family which the company dubs a “high-performance, low-price” solution based on a 200 MHz Renesas RA6M5 Arm Cortex-M33 microcontroller and equipped with a ESP32-C3 Wi-Fi and Bluetooth Low Energy module. The new board provides a cost-effective alternative to the Portenta H7 and X8 boards, but still offers wireless connectivity, a secure element for industrial-grade security, and compatibility with Portenta, MKR, and Nicla components. Portenta C33 specifications: Microcontroller – Renesas R7FA6M5BH2CBG Arm Cortex-M33 microcontroller @ up to 200 MHz with 512KB SRAM, 2MB Flash, Arm TrustZone, and Secure Crypto Engine 9 Storage – 16 MB QSPI Flash Connectivity 10/100M Ethernet PHY ESP32-C3 WiFi and BLE module USB – 1x USB Type-C high-speed port with Power Delivery support I/Os via 2x 80 pin high-density connectors, Arduino MKR headers with castellated hole, and a 5-pin I2C connector Storage – SD Card Networking […]

STMicro adds more STM32U5 Cortex-M33 MCUs with NeoChrom 2.5D GPU, 128KB to 4MB flash, NIST certification, etc…

STM32U5 MCU family 2023

STMicro has added three new families to its STM32U5 Cortex-M33 microcontroller series with the entry-level STM32U535/545 with as little as 128KB flash, the STM32U595/5A5 with up to 4MB of Flash and 2,514KB of RAM, and the STM32U599/5A9 with similar features as the STM32U595/5A5 by adding the new NeoChrom 2.5D GPU plus TFT-LCD and DSI display interfaces. STMicro also announced that STM32U5 series MCUs were the first general-purpose MCUs to receive NIST-embedded random-number entropy source certification. As of now, along with the STM32U575/585 introduced in February 2021 with an optional Chrom-ART 2D GPU, STMicro offers eight product lines as part of the STM32U5 MCU series as shown in the table below. That means the STM32U5 microcontroller can address a wider range of applications with the STM32U535/545 targetting lower-cost applications with less flash and RAM, the “legacy” STM32U575/U585 for mid-range applications, and the STM32U59X/5AX for applications where more storage and memory is […]

Silicon Labs FG25 Arm Cortex-M33 SoC targets Wi-SUN FAN networks

Silicon Labs FG25 Wi SUN microcontroller

Silicon Labs announced various new products at its annual Works With Developer Conference including the FG25 Arm Cortex-M33 SoC designed for sub-GHz Wi-SUN FAN networks for Smart Cities and applications such as smart metering, street lighting, electricity distribution automation, municipal infrastructure, and more. The microcontroller runs at up to 97.5 MHz, features 512KB RAM and up to 1920 KB flash, operates at up to 125°C, consumes as little as 2.6 μA in deep sleep mode, and can offer a range of up to 3 km when used in combination with the new EFF01x front-end module delivering up to +30 dBm output power. Silicon Labs FG25 (EFR32FG25) specifications: CPU core – Arm Cortex-M33 core @ 97.5 MHz with DSP instruction and floating-point unit for signal processing Memory – Up to 512 kB RAM data memory Storage – Up to 1920 kB flash program memory Radio Sub-GHz radio operation TX power up […]

u-blox XPLR-IOT-1 explorer kit embeds cellular IoT, Wi-Fi, BLE, GNSS, and sensors for IoT evaluation

XPLR-IoT-1 IoT evaluation plaform

u-blox XPLR-IOT-1 explorer kit is an all-in-one IoT evaluation platform with cellular IoT, Wi-Fi, Bluetooth Low Energy, and GNSS, plus some sensors to evaluate various IoT products and enable proofs of concepts such as logistics container trackers, industrial automation, sensor-to-cloud applications, and fleet management solutions. The device’s main module is the u-blox NORA-B106 with a dual-core Arm Cortex M33 microcontroller and Bluetooth LE 5.2 radio that host the application software and control the other modules, namely the SARA-R510S module for LTE-M and NB-IoT cellular connectivity, NINA-W156 2.4 GHz Wi-Fi module, and the MAX-M10S GNNS module. The XPLR-IOT-1 platform is also equipped with an accelerometer, a gyroscope, a magnetometer, and temperature, humidity, pressure, and ambient light sensors. u-blox XPLR-IOT-1 specifications: Main MCU – Nordic Semi nRF5340 dual-core Arm Cortex M33 @ 128/64 MHz with 512 + 64 kB RAM memory and 1024 + 256 kB flash (found in NORA-B106 module) Wireless […]

NXP i.MX RT1180 Cortex-M7/M33 crossover MCU integrates GbE TSN for industrial IoT communication

NXP i.MX RT1180

NXP i.MX RT1180 is the latest member of the company’s i.MX RT Series crossover MCUss with application processor-like performance. The 800 MHz dual-core Arm Cortex-M7/M33 microcontroller is specifically designed for industrial IoT communication with a Gigabit Ethernet port supporting time-sensitive networking (TSN). NXP also highlights that it is the first crossover MCU to include an EdgeLock secure enclave that “eases the complexity of implementing robust, system-wide security intelligence for industrial IoT applications”, and the new processor aims to bridge the gap between existing industrial systems and Industry 4.0 system. NXP i.MX RT1180 key features and specifications: CPUs – Arm Cortex-M7 @ 800 MHz + Arm Cortex-M33 @ 240 MHz (Optional: single-core Arm Cortex-M33) On-chip Memory – Up to 1.5 MB SRAM (ECC protected) with 512 KB of TCM for Cortex-M7 and 256 KB of TCM for Cortex-M33 Memory & Storage I/F – 2x FlexSPI for HyperRAM or HyperFlash 8/16/32-bit SDRAM/LPSDRAM […]