ST STM8L151K3U3TR

8-bit ultra-low-power MCU, up to 8 KB Flash, up to 256 bytes data EEPROM, RTC, timers, USART, I2C, SPI, ADC, comparators

• Operating power supply: 1.65 to 3.6 V (without BOR), 1.8 to 3.6 V (with BOR)
• Temperature range: -40 to 85 or 125 ℃
• 5 low-power modes: Wait, Low power run, Low-power wait, Active-halt with RTC, Halt
• Ultra-low leakage per I/O: 50 nA
• Fast wakeup from Halt: 5 μs
• Harvard architecture and 3-stage pipeline
• Max freq: 16 MHz, 16 CISC MIPS peak
• Up to 40 external interrupt sources
• Low-power, ultra safe BOR reset with 5 selectable thresholds
• Ultra-low power POR/PDR
• Programmable voltage detector (PVD)
• 32 kHz and 1-16 MHz crystal oscillators
• Internal 16 MHz factory-trimmed RC
• Internal 38 kHz low consumption RC
• Clock security system
• BCD calendar with alarm interrupt
• Digital calibration with +/ - 0.5 ppm accuracy
• LSE security system
• Auto-wakeup from Halt w/ periodic interrupt
• Up to 8 Kbyte of Flash program memory plus 256 byte of data EEPROM with ECC
• Flexible write/read protection modes
• 1 Kbyte of RAM
• UFQFPN28 (4x4 mm) UFQFPN20 (3x3 mm)
• DMA: 4 channels supporting ADC, SPI, I²C, USART, timers; 1 channel for memory-to-memory
• 12-bit ADC up to 1 Msps/28 channels: Temp. sensor and internal ref. voltage
• 2 ultra-low-power comparators: 1 with fixed threshold and 1 rail to rail; Wakeup capability
• Timers: Two 16-bit timers with 2 channels (IC, OC, PWM), quadrature encoder (TIM2, TIM3); One 8-bit timer with 7-bit prescaler (TIM4); 1 Window and 1 independent watchdog; Beeper timer with 1, 2 or 4 kHz frequencies
• Communication interfaces: One synchronous serial interface (SPI); Fast I²C 400 kHz; One USART
• Up to 41 I/Os, all mappable on interrupt vectors
• Up to 20 capacitive sensing channels, supporting touchkey, proximity touch, linear touch, and rotary touch sensors
• Fast on-chip programming and nonintrusive debugging with SWIM
• Bootloader using USART
• 96-bit unique ID