STM32F446RET6

This product features an ARM 32-bit Cortex-M4 CPU with FPU and Adaptive Real-Time Accelerator (ART Accelerator), enabling zero-wait-state execution from Flash memory at up to 180MHz, equipped with MPU, delivering 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1) performance with DSP instruction support. It integrates 512kB Flash memory and 128KB SRAM, a flexible external memory controller (16-bit data bus, compatible with SRAM, PSRAM, SDRAM/LPSDR SDRAM, Flash NOR/NAND memory), and a dual-mode Quad SPI interface. An LCD parallel interface (8080/6800 mode) is also provided. Available package options include LQFP64 (10×10mm), LQFP100 (14×14mm), LQFP144 (20×20mm), UFBGA144 (7×7mm, 10×10mm), and WLCSP 81.

Key features

• Core: ARM 32-bit Cortex-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator) allowing 0-wait state execution from Flash memory, frequency up to 180 MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
• Memories – 512 kB of Flash memory 128 KB of SRAM – Flexible external memory controller with up to 16-bit data bus: SRAM, PSRAM, SDRAM/LPSDR SDRAM, Flash NOR/NAND memories
• LCD parallel interface, 8080/6800 modes
• Clock, reset and supply management – 1.7 V to 3.6 V application supply and I/Os – POR, PDR, PVD and BOR – 4-to-26 MHz crystal oscillator – Internal 16 MHz factory-trimmed RC (1% accuracy) 32 kHz oscillator for RTC with calibration – Internal 32 kHz RC with calibration
• Low power – Sleep, Stop and Standby modes VBAT supply for RTC, 20x32 bit backup registers + optional 4 KB backup SRAM
• 3x12-bit, 2.4 MSPS ADC: up to 24 channels and 7.2 MSPS in triple interleaved mode
• 2x12-bit D/A converters
• General-purpose DMA: 16-stream DMA controller with FIFOs and burst support
• Up to 17 timers: 2x watchdog, 1x SysTick timer and up to twelve 16-bit and two 32-bit timers up to 180 MHz, each with up to 4 IC/OC/PWM or pulse counter
• Debug mode – SWD & JTAG interfaces – Cortex-M4 Trace Macrocell
• Up to 114 I/O ports with interrupt capability – Up to 111 fast I/Os up to 90 MHz – Up to 112 5V-tolerant I/Os
• Up to 20 communication interfaces – SPDIF-Rx – Up to 4xI²C interfaces (SMBus/PMBus) Up to 4 USARTs/2 UARTs (11.25 Mbit/s, ISO7816 interface, LIN, IrDA, modem control) Up to 4 SPIs (45 Mbits/s), 3 with muxed I²S for audio class accuracy via internal audio PLL or external clock – 2x SAI (serial audio interface) – 2x CAN (2.0B Active) – SDIO interface – Consumer electronics control (CEC) I/F
• Advanced connectivity – USB 2.0 full-speed device/host/OTG controller with on-chip PHY – USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI Dedicated USB power rail enabling on-chip PHYs operation throughout the entire MCU power supply range
• 8- to 14-bit parallel camera interface up to 54 Mbytes/s
• CRC calculation unit
• RTC: subsecond accuracy, hardware calendar
• 96-bit unique ID