Features
■ Ultra-low-power platform – 1.65 V to 3.6 V power supply – -40 °C to 105 °C temperature range – 0.29 µA Standby mode (3 wakeup pins) – 1.15 µA Standby mode + RTC – 0.44 µA Stop mode (16 wakeup lines) – 1.4 µA Stop mode + RTC – 8.6 µA Low-power run mode – 185 µA/MHz Run mode – 10 nA ultra-low I/O leakage – 8 µs wakeup time
■ Core: ARM® Cortex®-M3 32-bit CPU – From 32 kHz up to 32 MHz max – 1.25 DMIPS/MHz (Dhrystone 2.1) – Memory protection unit
■ Reset and supply management – Low-power, ultrasafe BOR (brownout reset) with 5 selectable thresholds – Ultra-low-power POR/PDR – Programmable voltage detector (PVD)
■ Clock sources – 1 to 24 MHz crystal oscillator – 32 kHz oscillator for RTC with calibration – High Speed Internal 16 MHz – Internal low-power 37 kHz RC – Internal multispeed low-power 65 kHz to 4.2 MHz – PLL for CPU clock and USB (48 MHz)
■ Pre-programmed bootloader – USB and USART supported
■ Development support – Serial wire debug supported – JTAG supported
■ 51 fast I/Os (42 I/Os 5V tolerant), all mappable on 16 external interrupt vectors
■ Memories – 256 KB Flash memory with ECC – 16 KB RAM – 4 KB of true EEPROM with ECC – 20 Byte backup register
■ LCD Driver for up to 8x28 segments
■ Analog peripherals – 12-bit ADC 1Msps up to 20 channels – 12-bit DACs 2 channels with output buffers – 2x ultra-low-power-comparators (window mode and wakeup capability)
■ DMA controller 12x channels
■ 9x peripheral communication interfaces – 1xUSB 2.0 (internal 48 MHz PLL) – 3xUSART – 3xSPI 16 Mbits/s (2x SPI with I2S) – 2xI2C (SMBus/PMBus)
■ 10x timers: 6x 16-bit with up to 4 IC/OC/PWM channels, 2x 16-bit basic timers, 2x watchdog timers (independent and window)
■ CRC calculation unit LQFP64 (10 × 10 mm)