Mainstream Access line 8-bit MCU with 32 Kbytes Flash, 16 MHz CPU, integrated EEPROM

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  • The STM8S105x4/6 access line 8-bit microcontrollers offer from 16 to 32 Kbyte Flash program memory, plus integrated true data EEPROM. The STM8S microcontroller family reference manual (RM0016) refers to devices in this family as medium-density. All devices of the STM8S105x4/6 access line provide the following benefits: reduced system cost, performance and robustness, short development cycles, and product longevity.

    The system cost is reduced thanks to an integrated true data EEPROM for up to 300 k write/erase cycles and a high system integration level with internal clock oscillators, watchdog and brown-out reset.
    Device performance is ensured by a 16 MHz CPU clock frequency and enhanced characteristics which include robust I/O, independent watchdogs (with a separate clock source), and a clock security system.
    Short development cycles are guaranteed due to application scalability across common family product architecture with compatible pinout, memory map and modular peripherals.
    Product longevity is ensured in the STM8S family thanks to their advanced core which is made in a state-of-the-art technology for applications with 2.95 V to 5.5 V operating supply.
    Full documentation is offered as well as a wide choice of development tools.

    Key Features

    • Core
      • 16 MHz advanced STM8 core with Harvard architecture and 3-stage pipeline
      • Extended instruction set
    • Memories
      • Program memory: up to 32 Kbyte Flash; data retention 20 years at 55 °C after 10 kcycle
      • Data memory: up to 1 Kbyte true data EEPROM; endurance 300 kcycle
      • RAM: up to 2 Kbyte
    • Clock, reset and supply management
      • 2.95 to 5.5 V operating voltage
      • Flexible clock control, 4 master clock sources
        • Low power crystal resonator oscillator
        • External clock input
        • Internal, user-trimmable 16 MHz RC
        • Internal low-power 128 kHz RC
      • Clock security system with clock monitor
      • Power management:
        • Low-power modes (wait, active-halt, halt)
        • Switch-off peripheral clocks individually
      • Permanently active, low-consumption power-on and power-down reset
    • Interrupt management
      • Nested interrupt controller with 32 interrupts
      • Up to 37 external interrupts on 6 vectors
    • Timers
      • Advanced control timer: 16-bit, 4 CAPCOM channels, 3 complementary outputs, dead-time insertion and flexible synchronization
      • 2x16-bit general purpose timer, with 2+3 CAPCOM channels (IC, OC or PWM)
      • 8-bit basic timer with 8-bit prescaler
      • Auto wake-up timer
      • Window watchdog and independent watchdog timers
    • Communication interfaces
      • UART with clock output for synchronous operation, SmartCard, IrDA, LIN master mode
      • SPI interface up to 8 Mbit/s
      • I2C interface up to 400 kbit/s
    • Analog to digital converter (ADC)
      • 10-bit, ±1 LSB ADC with up to 10 multiplexed channels, scan mode and analog watchdog
    • I/Os
      • Up to 38 I/Os on a 48-pin package including 16 high sink outputs
      • Highly robust I/O design, immune against current injection
    • Unique ID
      • 96-bit unique key for each device

Circuit Diagram

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Support and Applications

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Technical Documentation

    • Description Version Size Action
      DS5855
      Access line, 16 MHz STM8S 8-bit MCU, up to 32 Kbyte Flash, integrated EEPROM, 10-bit ADC, timers, UART, SPI, I²C
      15.0
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    • Description Version Size Action
      AN3143
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      1.3
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      1.4
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      5.2
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      1.6
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      6.0
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      11.0
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      3.1
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      2.0
      247.91 KB
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      1.4
      209.97 KB
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      3.3
      268.78 KB
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      2.3
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      7.0
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HW Model, CAD Libraries & SVD

    • Description Version Size Action
      STM8S CAD Symbol and Footprint files 1.5
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      ZIP

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Presentations & Training Material

    • Description Version Size Action
      STM32 and STM8 Functional Safety Packages 3.4
      1.73 MB
      PDF
      STM32 and STM8 embedded software solutions 7.0
      3.12 MB
      PDF
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      STM32 and STM8 software development tools

Publications and Collaterals

    • Description Version Size Action
      Get ready for the largest IoT development ecosystem 20.0
      1.36 MB
      PDF
      STM8CubeMX eases STM8 configuration 19.01
      1.21 MB
      PDF

      Get ready for the largest IoT development ecosystem

      STM8CubeMX eases STM8 configuration

    • Description Version Size Action
      STM8 8-bit MCU family 18.10
      3.47 MB
      PDF

      STM8 8-bit MCU family

Quality & Reliability

    • Description Version Size Action
      VDE certification for STM8S ClassB f/w 1.0
      1.81 MB
      PDF
      VDE certification for STM8S ClassB f/w 1.0
      1.81 MB
      PDF

      VDE certification for STM8S ClassB f/w

      VDE certification for STM8S ClassB f/w

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM8S105C6T3
Active
LQFP 48 7x7x1.4 Industrial Ecopack2
STM8S105C6T3TR
Active
LQFP 48 7x7x1.4 Industrial Ecopack2
STM8S105C6T6
Active
LQFP 48 7x7x1.4 Industrial Ecopack2
STM8S105C6T6TR
Active
LQFP 48 7x7x1.4 Industrial Ecopack2

STM8S105C6T3

Package:

LQFP 48 7x7x1.4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP 48 7x7x1.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8S105C6T3TR

Package:

LQFP 48 7x7x1.4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP 48 7x7x1.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8S105C6T6

Package:

LQFP 48 7x7x1.4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP 48 7x7x1.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8S105C6T6TR

Package:

LQFP 48 7x7x1.4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP 48 7x7x1.4

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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