STM32F429/439 Microcontrollers, STMicroelectronics The STM32 F429/F439 microcontroller are based on the ARM^® Cortex™ M4 microcontroller with 180 MHz CPU operating up to 256 KB SRAM and up to 2 MB of dual bank Flash with SDRAM interface, Chrom-ART and LCD-TFT controller. The STM32F439 crypto/hash processor provides hardware acceleration for AES 128, 192, 256, Triple DES, and hash (MD5, SHA-1).
ST’s STM32 F429/439 Cortex M4 core architecture offers enhanced I/Os and peripherals which include Serial Audio Interface (SAI), true number random generator (RNG) and RTC, DACs, ADCs, 16-bit and 32-bit timers. As well as power saving modes that allow the design of low-power applications. In addition to this it has an Ethernet MAC and camera interface for CMOS sensors. The STM32 F429/439 32-bit Flash MCUs feature a Floating point unit (FPU) with digital signal processing (DSP) instructions and a memory protection unit (MPU) which increase your application security.

They will cover a wide range of applications which include motor drive and application control, Industrial applications: Inverters, PLC, scanners, HVAC, video intercom, Home audio appliances and Medical equipment.
ARM 32-bit Cortex™ M4 CPU with FPU
LCD-TFT Controller
Chrom-ART Accelerator
Adaptive real-time accelerator (ART Accelerator™)
Flash memory: up to 2 MB; SRAM: Up to 256+4 KB (includes 64 KB of CCM (core coupled memory) data RAM
Power supply: 1.8 V to 3.6 V
Timers: 16-bit and 32-bit timers
DACs, 12-bit ADCs
Real time clock (RTC)
True random number generator (RNG)
Crypto/hash processor (STM32F437 only)
Audio connectivity: dedicated audio PLL, I²S, serial audio interface (SAI)
Communication interfaces: USARTs, UARTs, SPI, I²C, CAN and SDIO
Extendable memory range: flexible memory controller and supports the Compact Flash, SRAM, PSRAM, NOR and NAND and SDRAM memories