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 full RTC (1.3 µA), Halt (350 nA) – Consumption: 195 µA/MHz + 440 µA – Ultra-low leakage per I/0: 50 nA – Fast wakeup from Halt: 4.7 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 oscillator – Internal 16 MHz factory-trimmed RC – Internal 38 kHz low consumption RC – Clock security system
■ Low power RTC – BCD calendar with alarm interrupt – Auto-wakeup from Halt w/ periodic interrupt
■ LCD: up to 4x28 segments w/ step-up converter
■ Memories – 32 KB Flash program memory and 256 bytes data EEPROM with ECC, RWW – Flexible write and read protection modes – 2 Kbytes of RAM
■ DMA – 4 channels supporting ADC, SPI, I2C, USART, timers – 1 channel for memory-to-memory
■ 12-bit ADC up to 1 Msps/25 channels – Internal reference voltage
■ Timers – Two 16-bit timers with 2 channels (used as IC, OC, PWM), quadrature encoder – One 16-bit advanced control timer with 3 channels, supporting motor control – 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 (ISO 7816 interface and IrDA)
■ Up to 41 I/Os, all mappable on interrupt vectors
■ Development support – Fast on-chip programming and non- intrusive debugging with SWIM – Bootloader using USART LQFP48