The STMicroelectronics ARM Cortex STM32 F405/415 ranges of microcontrollers are for embedded applications. The high performance STM32 F4 series 32-bit Flash MCU offers floating point unit (FPU) and digital signal processing (DSP) with industry standard core architecture.
ST’s 32-bit ARM® Cortex™ M4 core operates on the 168 MHz range with integrated peripherals including ADCs, DACs, timers and a crypto/hash processor (STM32F415 only) which provides hardware acceleration for AES 128, 192, 256, Triple DES, and hash (MD5, SHA-1). ST’s ART accelerator and the dynamic power scaling enable low current consumption in run mode.

USB OTG (High Speed support)
Audio: audio PLL and 2 full duplex I²S
Communication interfaces: USARTs, SPI, I²C, CAN, SDIO
Analogue: 12-bit DACs, 12-bit ADCs
Timers: 16-bit and 32-bit (168MHz)
Flash memory: 1MB; SRAM: 92KB
STM32F415 only: integrates a crypto/hash processor
Analogue true random number generator
Operation voltage: 1.7 to 3.6V
Temperature ranges: -40 to +85°C or -40 to +105°C

STM32F4 Series 32-Bit ARM Cortex-M4 Microcontrollers, STMicroelectronics

The ARM Cortex-M4 based STM32 F4 series of high-performance MCUs with DSP and FPU instructions is an extension of the industry-leading STM32 portfolio towards even higher performance. Up to 180 MHz operating frequency.

Up to 2x USB 2.0 OTG FS/HS
SDIO (Secure Digital Input Output)
USART, SPI, I²C
I²S (Inter-IC Sound) + Audio PLL
16 and 32 Bit Timers
Up to 3x 12-Bit ADC
Low Voltage 1.7 V to 3.6 V