MCUs Bump Memory To 1.5MB, Add New Features For IoT & Industrial Designs!


To help the development of high-performance embedded designs, STMicroelectronics has launched two new STM32 microcontroller lines with extra features as well as qualification to 125°C. Usage scenerios include always-on sensor acquisition and general-purpose industrial applications.

Qualified up to 125°C, the STM32F413/423 MCUs help to increase energy efficiency, flexibility, and feature integration of its STM32F4 Access Line, and are a cost-effective upgrade from STM32F1 MCUs.

The STM32F413 and crypto-enhanced STM32F423 integrate up to 1.5MB Flash and a SRAM of 320KB. Rich audio capabilities include a Serial Audio Interface (SAI) and an enhanced voice-acquisition interface with multi-channel Digital Filter for Sigma-Delta Modulators (DFSDM) that enables low-power sound localization and beam forming.

The devices also integrate two 12-bit Digital-Analog Converters (DACs), up to 10 UARTs, and three CAN 2.0B Active interfaces. The crypto-enhanced STM32F423 also has a True Random-Number Generator (TRNG) and AES-256 cryptographic hardware accelerator.


The new MCUs introduce a 100MHz dual-mode Quad SPI for connecting serial off-chip memory, 16-bit Flexible Memory Controller (FMC) for external SRAM, PSRAM or NOR Flash, up to 16-bit QVGA or 8-bit WQVGA LCD interface, and USB OTG with Link Power Management (LPM) and dual power rails that save external level shifting.

In addition, both lines feature a new RAM-access scheme that uses the instruction and data (I/D) buses and the system bus (SBUS) to connect to separate RAM1 (256KB) and RAM2 (64KB) areas thereby minimizing contentions. A new, enhanced DMA Batch Acquisition Mode (BAM+) takes advantage of these separate RAM1 and RAM2 areas to process code and data extremely efficiently in sensor-hub applications.

The MCUs combine high performance with energy efficiency leveraging 100MHz 125DMIPS/339 EEMBC CoreMark ARM Cortex-M4 core and ST’s power-saving Dynamic Efficiency technologies to cut RUN mode current to as little as 112µA/MHz. This helps maximize the battery life of always-connected devices.

Control Air Pollution With Highly-sensitive Dust Sensor

Designers can immediately start their projects using the NUCLEO-F413ZH development board. This STM32 Nucleo-144 board comes with the ST-LINK/V2-1 debugger/programmer, software libraries and examples, and can be used directly with ARM mbed online resources.

The STM32F413 and STM32F423 are available now in seven package options from 4.039mm x 3.951mm WLCSP81 to 144-pin LQFP, priced from $4.73 for 10,000 pieces for the WLCSP81.

The NUCLEO-F413ZH, priced at $19, is available now from distributors or directly from The STM32F413 Discovery Kit is scheduled for launch in early 2017.

For further information please visit To view the full Press release, click here.



Please enter your comment!
Please enter your name here

Are you human? *