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 84 MHz, memory protection unit, 105 DMIPS/ 1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
■ Memories – Up to 256 Kbytes of Flash memory – Up to 64 Kbytes of SRAM
■ Clock, reset and supply management – 1.7 V (PDR OFF) or 1.8 V (PDR ON) 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 – 32 kHz oscillator for RTC with calibration – Internal 32 kHz RC with calibration
■ Power consumption – Run: 128 µA/MHz (peripheral off) – Stop (Flash in Stop mode, fast wakeup time): 42 µA typ @ 25 °C; 65 µA max @25 °C – Stop (Flash in Deep power down mode, slow wakeup time): down to 10 µA typ@ 25 °C; 28 µA max @25 °C – Standby: 2.4 µA @25 °C / 1.7 V without RTC; 12 µA @85 °C @1.7 V – VBAT supply for RTC: 1 µA @25 °C
■ 1×12-bit, 2.4 MSPS A/D converter: up to 16 channels
■ General-purpose DMA: 16-stream DMA controllers with FIFOs and burst support
■ Up to 11 timers: up to six 16-bit, two 32-bit timers up to 84 MHz, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input, two watchdog timers (independent and window) and a SysTick timer
■ Debug mode – Serial wire debug (SWD) & JTAG interfaces – Cortex-M4 Embedded Trace Macrocell™
■ Up to 81 I/O ports with interrupt capability – All IO ports 5 V tolerant – Up to 78 fast I/Os up to 42 MHz
■ Up to 11 communication interfaces – Up to 3 × I2C interfaces (1Mbit/s, SMBus/PMBus) – Up to 3 USARTs (2 x 10.5 Mbit/s, 1 x 5.25 Mbit/s), ISO 7816 interface, LIN, IrDA, modem control) – Up to 4 SPIs (up to 42 Mbits/s at fCPU = 84 MHz), SPI2 and SPI3 with muxed full- duplex I2S to achieve audio class accuracy via internal audio PLL or external clock – SDIO interface
■ Advanced connectivity – USB 2.0 full-speed device/host/OTG controller with on-chip PHY
■ CRC calculation unit
■ 96-bit unique ID
■ RTC: subsecond accuracy, hardware calendar