ST opens up Cortex-M7 designs with development system expansion

October 09, 2016 // By Graham Prophet
STMicroelectronics has introduced STM32F7 microcontroller lines and added accessories and options to the development ecosystem, easing access to high-performance embedded design based on the ARM Cortex-M7 core.

The latest STM32F722 and STM32F723 microcontrollers in the very high-performance STM32F7 series reduce memory footprint by integrating value-added features including code-execution protection and high-speed USB physical-layer (PHY) circuitry that streamline development of connected applications. The STM32F732 and STM32F733 variants come with extra cryptographic features on-chip, such as an efficient AES256 HW engine. There are package options from a 64-pin LQFP up to 176-pin LQFP or UFBGA for projects demanding high I/O count, and 256 kB or 512 kB of on-chip Flash memory with 256 kB RAM.

Pin, package, and software compatibility between the new devices and higher-end STM32F7 variants with 256 kB to 2 MB Flash memory and 256 kB to 512 kB RAM in packages up to 216-pin TFBGA simplifies design scaling for product differentiation and future-proofing. STM32F7 projects can also be ported throughout the large STM32 microcontroller family, which contains over 700 devices that cover all 32-bit Cortex-M cores and offer a wide range of peripheral, pin-count, and memory options.

ST is also adding a Discovery Kit, based on the STM32F769, with expansion connectors that include an 8-pin socket for Wi-Fi modules. The kit supports Power over Ethernet (PoE). Other features include a 512-Mbit Quad-SPI (QSPI) Flash interface and new accessories that enhance flexibility and extend application reach, including the B-LCDAD-RPI1 15-pin single row Flexible Printed Circuit DSI adapter board and B-LCDAD-HDMI1 DSI-to-HDMI adapter, which attach a variety of displays. The kit can also be supplied with the B-LCD40-DSI 4-inch WVGA capacitive-touchscreen display pre-fitted, or without the display for extra affordability. The B-LCD40-DSI can be ordered separately if needed to upgrade the kit at a later date.

The STM32F769 Discovery Kits start from $49, with wireless-ready baseboards. The STM32F722/723 and crypto-enhanced STM32F732/733 microcontroller lines will enter volume production in Q1 2017. Pricing starts from $5.04 (10,000) for the STM32F722RET6 in LQFP64.

ST: www.st.com/stm32f7