The low density value line STM8L05xxx devices are members of the STM8L ultra low power 8-bit family.The value line STM8L05xxx ultra low power family features an enhanced STM8 CPU core providing increased processing power (up to 16 MIPS at 16 MHz) while maintaining the advantages of a CISC architecture with improved code density, a 24-bit linear addressing space and an optimized architecture for low power operations.The family includes an integrated debug module with a hardware interface (SWIM) which allows non-intrusive In-Application debugging and ultra-fast Flash programming.Low density value line STM8L05xxx microcontrollers feature embedded data EEPROM and low power, low-voltage, single-supply program Flash memory.The devices incorporate an extensive range of enhanced I/Os and peripherals, a 12-bit ADC, a real-time clock, two 16-bit timers, one 8-bit timer, as well as standard communication interfaces such as an SPI, an I²C interface, and one USART.The modular design of the peripheral set allows the same peripherals to be found in different ST microcontroller families including 32-bit families. This makes any transition to a different family very easy, and simplified even more by the use of a common set of development tools.All value line STM8L ultra low power products are based on the same architecture with the same memory mapping and a coherent pinout.
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/0: 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/28 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
