MCU 8-Bit STM8A STM8 CISC 4KB Flash 3.3V/5V 20-Pin TSSOP T/R

The STM8AF621 is an automotive 8-bit microcontroller’s offer 4 to 8 Kbyte of Flash program memory, plus integrated true data EEPROM. The STM8S series and STM8AF series 8-bit microcontroller’s reference manual (RM0016) refers to devices in this family as low-density. They provide the following benefits: performance, robustness and reduced system cost. Device performance and robustness are ensured by advanced core and peripherals made in a state-of-the-art technology, a 16 MHz clock frequency, robust I/Os, independent watchdogs with separate clock source, and a clock security system.

• Core
  • Max Freq CPU: 16 MHz
  • Advanced STM8A core with Harvard architecture and 3-stage pipeline
  • Extended instruction set
• Memories
  • Program memory: 4 to 8 Kbyte Flash program; data retention 20 years at 55 °C after 1 kcycle
  • Data memory: 640 byte true data EEPROM; endurance 300 kcycle
  • RAM: 1 Kbyte
• Clock management
  • Low-power crystal resonator oscillator with external clock input
  • Internal, user-trimmable 16 MHz RC and low-power 128 kHz RC oscillators
  • Clock security system with clock monitor
• Reset and supply management
  • Wait/auto-wakeup/Halt low-power modes with user definable clock gating
  • Low-consumption power-on and powerdown reset
• Interrupt management
  • Nested interrupt controller with 32 interrupts
  • Up to 28 external interrupts on 7 vectors
• Timers
  • Advanced control timer: 16-bit, 4 CAPCOM channels, 3 complementary outputs, deadtime insertion and flexible synchronization
  • 16-bit general purpose timer with 3 CAPCOM channels each (IC, OC, PWM)
  • 8-bit AR basic timer with 8-bit prescaler
  • Auto-wakeup timer
  • Window and independent watchdog timers
• I/Os
  • Up to 28 I/Os on a 32-pin package including 21 high sink outputs
  • Highly robust I/O design, immune against current injection
• Communication interfaces
  • LINUART LIN 2.2 compliant, master/slave modes with automatic resynchronization
  • SPI interface up to 8 Mbit/s or fMASTER/2
  • I2C interface up to 400 Kbit/s
• Analog to digital converter (ADC)
  • 10-bit, ± 1 LSB ADC with up to 7 muxed channels + 1 internal channel, scan modeand analog watchdog
  • Internal reference voltage measurement
• Operating temperature up to 150 °C
• Qualification conforms to AEC-Q100 rev G