STM8L052R8T6TR

Value Line 8-bit ultra-low-power microcontroller with 64KB Flash, 256-byte data EEPROM, RTC, LCD, timers, USART, I2C, SPI, and ADC.

Key features

• 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 (5.9 μA), Low power wait (3 μA), Active-halt with full RTC (1.4 μA), Halt (400 nA)
• Dynamic power consumption: 200 μA/MHz + 330 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 programmable 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
• 38 kHz low consumption RC
• Clock security system
• Low power RTC:
• BCD calendar with alarm interrupt
• Digital calibration with +/-0.5 ppm accuracy
• Advanced anti-tamper detection
• LCD: 8x24 or 4x28 w/ step-up converter
• Memories:
• 64 KB Flash program memory and 256 bytes data EEPROM with ECC, RWW
• Flexible write and read protection modes
• 4 KB of RAM
• DMA 4 channels supporting ADC, SPIs, I²C, USARTs, timers
• 1 channel for memory-to-memory
• 12-bit ADC up to 1 Msps/27 channels
• Internal reference voltage
• Timers:
• Three 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:
• Two synchronous serial interfaces (SPI)
• Fast I²C 400 kHz SMBus and PMBus
• Three USARTs (ISO 7816 interface + IrDA)
• Up to 54 I/Os, all mappable on interrupt vectors
• Development support:
• Fast on-chip programming and nonintrusive debugging with SWIM
• Bootloader using USART