Enhanced Feature Integration and Flexibility of STM32F4 Access Line with STM32F413/423 MCU Launch

STMicroelectronics (hereinafter ST) has launched STM32F413 and STM32F423, new microcontroller lines that support high-performance embedded design by enhancing power efficiency, flexibility, and feature integration as the high-end segment of the STM32F4 Access line.

These products are rated for temperatures up to 125°C[1] and target always-on sensor integration and general-purpose industrial applications. They also support safe and cost-effective upgrades from STM32F1 MCUs[2].

The STM32F413 and STM32F423 with enhanced cryptographic functionality feature relatively large flash capacity of up to 1.5MB and SRAM of 320KB.

These new products integrate the most features among the STM32F4 Access line. They are equipped with diverse audio features including a more powerful voice-acquisition interface with Serial Audio Interface (SAI) and multichannel digital filters for Sigma-Delta Modulator (DFSDM). This Sigma-Delta Modulator implements low-power sound localization and beamforming functions. Superior integration of high-performance peripherals is also a major characteristic.

Two 12-bit DACs, three CAN 2.0B active interfaces, and up to ten UARTs are provided. The STM32F423 with enhanced encryption features incorporates a TRNG (True Random-Number Generator) and AES-256 encryption accelerator.

These new products boast the highest levels among the STM32F4 Access line and include a 100MHz dual-mode quad SPI for serial off-chip memory connection, 16-bit flexible memory controller (FMC) for SRAM/PSRAM or NOR flash, maximum 16-bit QVGA or 8-bit WQVGA LCD interface, and USB OTG with dual power rails including Link Power Management (LPM) for storing external level shift values.

Both lines also employ a new RAM access approach that connects instruction/data (I/D) bus and system (SBUS) bus to RAM1 (256KB) and RAM2 (64KB) respectively to minimize conflicts. The newly added powerful DMA bulk acquisition mode (DMA BAM+) leverages this separation of RAM1 and RAM2 areas to more effectively process code and data in applications such as sensor hubs.

The new STM32 microcontroller delivers outstanding performance along with best-in-class power efficiency. It combines a 100MHz 125DMIPS/339 EEMBC® CoreMark® ARM® Cortex®-M4 core with ST's low-power Dynamic Efficiency technology, achieving a run mode current of only 112µA/MHz. ST's Dynamic Efficiency technology features the ST ART Accelerator™ for zero execution wait time from flash and reduces supply voltage down to 1.7V to maximize battery life in always-on electronic products.

With the NUCLEO-F413ZH development board, design projects can begin immediately. The STM32 Nucleo-144 board comes with ST-Link/V2-1 debugger/programmer, software libraries and examples, and works directly with the online resource ARM mbed™. The STM32F413 Discovery Kit is scheduled for release in early 2017 and will support customer application development in a more distinctive and innovative manner.

STM32F413 and STM32F423 are currently available in seven package types ranging from WLCSP81 at 4.039mm x 3.951mm to 144-pin LQFP, with device pricing starting at $4.73 per 10,000 units based on WLCSP81. The NUCLEO-F413ZH is currently available for purchase at $19 from distributors or the website (www.st.com/stm32f4).