Components | September 26, 2011
STMicro extends STM32 platform
STMicroelectronics introduced its new STM32 F4 series of microcontrollers. This extension to the STM32 platform is based on the latest ARM Cortex-M4 core. This adds signal-processing capabilities and faster operations to the portfolio of STM32 microcontrollers.
“The STM32 F4 series is attractive for so many more reasons than simply because it is the highest performing Cortex M processor-based microcontroller available on the market today,” said Claude Dardanne, Executive Vice President and General Manager Microcontrollers, Memories and Secure MCUs Group, “With more than 250 compatible devices already in production, the industry’s best development ecosystem, and outstanding power consumption and overall functionality, the F4 family is the cherry at the top of the STM32 family of Cortex-M processor-based MCUs, which now includes four product series: the STM32 F1 series, the STM32 F2 series and the STM32 L1 series, all based on the Cortex™-M3 processor, and the new F4 Series, based on the Cortex-M4 processor.” “ST's decision to include the ARM Cortex-M4 processor into its broad MCU portfolio is a testimony to the processor's low power consumption, advanced design and high-performance DSP capabilities,” said Lance Howarth, EVP, Marketing, ARM. "ST now has one of the broadest ARM Cortex-M series processor-based portfolios available. The Cortex-M series represents the fastest growing MCU architecture and the STM32 F4 microcontroller will undoubtedly further accelerate the adoption of the ARM architecture across microcontroller applications." Beyond offering pin-to-pin and software compatible with the high-performance F2 series, the F4 series operates at a higher frequency (168 MHz instead of 120 MHz), offers single-cycle DSP instruction support and a Floating Point Unit, larger SRAM (192 Kbytes vs. 128 Kbytes), embedded flash memory from 512 Kbytes up to 1 Mbyte, and advanced peripherals for imaging, connectivity and encryption. ST’s 90nm CMOS process technology and the integrated ST Adaptive Real Time “ART Accelerator” deliver state-of-the-art performance, with zero-wait-state program execution up to 168 MHz, and best-in-class dynamic power.3 Specific technical details of the F4 series include: - Ultra-fast data transfers, with a 7-layer multi-AHB bus matrix and multi-DMA controllers, which allow concurrent execution and data transfers; - The integrated single-precision FPU boosts the execution of control algorithms, adds more features to applications, improves code efficiency, reduces time-to-market, eliminates scaling and saturation, and allows the use of meta-language tools; - High integration, with up to 1 Mbyte of on-chip Flash memory, 192 Kbytes of SRAM, reset circuit, internal RCs, PLLs, sub 1microAmp real-time clock with sub-second accuracy; - Extra flexibility to reduce power consumption in applications requiring both high processing power and low-power performance when running at low voltage or on rechargeable batteries. These include 4 Kbytes of backup SRAM to save data in standby or battery backup modes, a typical RTC consumption of <1uA in Vbat mode, and an internal voltage regulator with power scaling capability, allowing the selection of performance or lower consumption; - Connectivity: Camera interface, Crypto/Hash HW processor, Ethernet MAC10/100 with IEEE 1588 v2 support, two USB OTG (one with HS support), - Audio: dedicated audio PLL and two full duplex I2S; - Up to 15 communication interfaces (including six USARTs running up to 10.5 Mbits/s, three SPI running up to 42 Mbits/s, three I2C, two CAN, SDIO); - Analog: Two 12-bit DACs, three 12-bit ADCs reaching 2.4 MSPS or 7.2 MSPS in interleaved mode; - Up to 17 timers: 16-bit and 32-bit running up to 168 MHz; - The family is in production now. The STM32 F4 Series is available in four variants: STM32F405x: in addition to a complete set of advanced peripherals including timers, three ADCs, two DACs, serial interfaces, external memory interface, RTC, CRC calculation unit and analog true Random Number Generator, the STM32F405 products have a USB On-The-Go (OTG) full-speed/high-speed interface. They are available in four packages (WLCSP64, LQFP64, LQFP100, LQFP144) with 1 Mbyte of Flash. STM32F407 products add several advanced peripherals to the ones offered on the STM32F405 products: a second USB OTG interface (full-speed only); an integrated Ethernet MAC 10/100 supporting both MII and RMII, with IEEE1588 Precise Time Protocol v2 Hardware support and an 8- to 14-bit parallel camera interface allowing the connection of a CMOS camera sensor, supporting up to 67.2 Mbytes/s. Devices are available in four packages (LQFP100, LQFP144, LQFP/BGA176), with from 512 Kbytes to 1 Mbyte of Flash. The STM32F415 and STM32F417 parts add a crypto/hash processor to the STM32F405 and STM32F407. This crypto/hash processor includes hardware acceleration for AES 128, 192, 256, Triple DES, HASH (MD5, SHA-1). As an example of the performance achieved by the crypto/hash processor, the AES-256 encryption throughput reaches up to 149.33 Mbytes/s. All variations are in volume production, with prices beginning from USD 5.74 for the STM32F407VET6 with 512 Kbytes of Flash and 192 Kbytes RAM in the LQFP100 package, for orders of more than 1'000 units.
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