China, January 5, 2015 - STMicroelectronics (ST; NYSE: STM) The latest STM32F446 family of microcontrollers offers designers more application options, and new products integrate enhanced ARM? Cortex?-M4 processing performance, 256KB or 512KB of on-chip flash (both with 128KB RAM), energy-efficient storage expansion interface and various communication interfaces.
The new product uses STMicroelectronics' Adaptive Accelerator® (ART Accelerator®, Adaptive Real-Time Accelerator) technology to implement the program code in the flash without wait state. . ], intelligent system architecture and advanced 90nm flash technology further enhance the processing performance of the standard ARM Cortex-M4 core with built-in floating point unit and DSP instructions. Therefore, the STM32F446's CPU has 225 DMIPS processing performance ahead of its class. CoreMark?[ CoreMark: Embedded Microprocessor Benchmark Consortium developed standard processing when executing in-flash software code at 180MHz. Device performance testing framework. ] The test scores achieved a good score of 608 points.
In addition, advanced new peripherals and multi-interface efficient synchronous communication enable industrial, scientific, medical, and Internet of Things (IoT) applications with greater intelligence and interactivity. The new peripherals include a camera interface, seven I2S audio interfaces, a consumer electronics controller (CEC) for managing multiple HDMI devices, a SPDIF digital audio interface, and a display parallel interface. . A USB module with built-in power rail reduces the minimum core supply voltage to 1.7V.
To allow designers to seamlessly scale their systems with external memory, the STM32F446 integrates a Flexible Memory Controller (FMC) and two four-wire SPI (QSPI) interfaces. The 90MHz FMC controller simplifies control of SRAM, SDRAM, NOR/NAND external memory or built-in controller LCDs, and supports memory-remap mode to improve performance. The dual QSPI interface can operate independently of the FMC, directly or up to two external SPI NOR flash memories via memory mapping, supporting single data rate or double data rate transmission.
Developers with tightly designed power consumption will benefit from the energy-saving features of the STM32F446. From advanced 90nm manufacturing processes combined with dynamic voltage scaling to extensive clock gating technology and flexible sleep modes, the STM32F446 microcontroller can reduce operating current to 50μA in STOP mode. All data information in the SRAM is reserved.
The TM32F446 will enable designers to benefit from the extensive STM32 development ecosystem and more than 600 pin- and software-compatible ARM Cortex-M core-based microcontroller families, including the recently announced STM32F7 family. The development ecosystem includes the easy-to-use STM32Cube open source software platform, STM32 Nucleo scalable prototyping board and STM32 Discovery evaluation board to support mainstream development environments such as IAR EWARM, Keil MDK-ARM, GCC-based integrated development environment (IDE) Or online mbed? [As an industrial cooperation project, ARM mbed? provides free tools and key open source hardware and software modules that will accelerate the development of innovative ARM microcontrollers.
Samples of the STM32F446 are available for testing to major customers and are expected to be in volume production in the first quarter of 2015. Package options include the WLCSP81 micro package of 3.728mm x 3.85mm and the LQFP144 of 20mm x 20mm, 256KB and 512KB (both with 128Kbyte SRAM) Both flash capacities are available to customers.
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