Features
■ Operating conditions – Operating power supply: 1.8 V to 3.6 V Temperature range: −40 °C to 85 °C
■ Low-power features – 5 low-power modes: Wait, Low-power run (5.1 µA), Low-power wait (3 µA), Active- halt with RTC (1.3 µA), Halt (350 nA) – Ultra-low leakage per I/O: 50 nA – Fast wakeup from Halt: 5 µs
■ Advanced STM8 core – Harvard architecture and 3-stage pipeline – Max freq: 16 MHz, 16 CISC MIPS peak – Up to 40 external interrupt sources
■ Reset and supply management – Low power, ultra-safe BOR reset with 5 selectable thresholds – Ultra-low power POR/PDR – Programmable voltage detector (PVD)
■ Clock management – 32 kHz and 1 to 16 MHz crystal oscillators – Internal 16 MHz factory-trimmed RC – Internal 38 kHz low consumption RC – Clock security system
■ Low-power RTC – BCD calendar with alarm interrupt – Digital calibration with +/- 0.5 ppm accuracy – LSE security system – Auto-wakeup from Halt w/ periodic interrupt
■ Memories – 8 Kbytes of Flash program memory and 256 bytes of data EEPROM with ECC – Flexible write and read protection modes – 1 Kbyte of RAM
■ DMA – 4 channels supporting ADC, SPI, I2C, USART, timers – 1 channel for memory-to-memory
■ 12-bit ADC up to 1 Msps/10 channels – Internal reference voltage
■ Timers – Two 16-bit timers with 2 channels (used as IC, OC, PWM), quadrature encoder – One 8-bit timer with 7-bit prescaler – 2 watchdogs: 1 Window, 1 Independent – Beeper timer with 1, 2 or 4 kHz frequencies
■ Communication interfaces – Synchronous serial interface (SPI) – Fast I2C 400 kHz SMBus and PMBus – USART
■ Up to 18 I/Os, all mappable on interrupt vectors
■ Development support – Fast on-chip programming and non- intrusive debugging with SWIM – Bootloader using USART TSSOP20 (6.4x4.4 mm or 169 mils width)