STM8L151G4U3

8-bit ultra-low-power microcontroller, up to 32KB Flash, 1KB data EEPROM, with RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, and comparator.

Key features

• Operating conditions
• Operating power supply range 1.8 V to 3.6 V (down to 1.65 V at power down)
• Temp. range: -40 °C to 85, 105 or 125 °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/O: 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
• 1 to 16 MHz crystal oscillator
• 32 kHz 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
• Up to 32 Kbytes of Flash program memory and 1 Kbyte of data EEPROM with ECC, RWW
• Flexible write and read protection modes
• Up to 2 Kbytes of RAM
• DMA
• 4 channels; supported peripherals: ADC, DAC, SPI, I²C, USART, timers
• 1 channel for memory-to-memory
• 12-bit DAC with output buffer
• 12-bit ADC up to 1 Msps/25 channels
• T. sensor and internal reference 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 (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
• USART (ISO 7816 interface and IrDA)
• Up to 41 I/Os, all mappable on interrupt vectors
• Up to 16 capacitive sensing channels supporting touchkey, proximity, linear touch and rotary touch sensors
• Development support
• Fast on-chip programming and non intrusive debugging with SWIM
• Bootloader using USART
• 96-bit unique ID