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

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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.

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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.

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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 www.st.com/stm32f4. The STM32F413 Discovery Kit is scheduled for launch in early 2017.

For further information please visit www.st.com/stm32f4. To view the full Press release, click here.

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