Document
STM8L151C2/K2/G2/F2 STM8L151C3/K3/G3/F3
8-bit ultra-low-power MCU, up to 8 KB Flash, up to 256 bytes data EEPROM, RTC, timers, USART, I2C, SPI, ADC, comparators
Datasheet - production data
Features
• Operating conditions – 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 °C
• Low power features – 5 low-power modes: Wait, Low power run, Low-power wait, Active-halt with RTC, Halt – 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 1-16 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 – 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
LQFP48 (7x7 mm)
TSSOP20 (6.4x4.4 mm)
UFQFPN32 (5x5 mm)
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
• Development support – Fast on-chip programming and nonintrusive debugging with SWIM – Bootloader using USART
• 96-bit unique ID
July 2018
This is information on a product in full production.
DS7204 Rev 11
1/123
www.st.com
Contents
Contents
STM8L151x2, STM8L151x3
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1 Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 Ultra-low-power continuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3
Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.1 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Central processing unit STM8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.1 Advanced STM8 Core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.2 Interrupt controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3 Reset and supply management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.1 Power supply scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.2 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.3 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4 Clock management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.5 Low power real-time clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.6 Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.7 DMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.8 Analog-to-digital converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.9 Ultra-low-power comparators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.10 System configuration controller and routing interface . . . . . . . . . . . . . . . 21
3.11 Touch sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.12 Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.12.1 16-bit general purpose timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .