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

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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circuit_diagram_14771_thumbnail.png

Design

Quality & Reliability

Product Certifications
Description Version Size
VDE certification for STM8S ClassB f/w 1.0 1 MB
VDE certification for STM8S ClassB f/w 1.0 1 MB

Publications and Collaterals

Flyers
Description Version Size
Get ready for the largest IoT development ecosystem 17.02 741 KB
STM8CubeMX eases STM8 configuration 1.0 532 KB
Brochures
Description Version Size
STM8 8-bit MCU family 17.03 1 MB

HW Model & CAD Libraries

HW Model & CAD Libraries
Description Version Size
STM8S CAD Symbol and Footprint files 1.1 1 MB

Presentations & Training Material

Presentations
Description Version Size
STM32 and STM8 Functional Safety Packages 2 1 MB
STM32 and STM8 embedded software solutions 2.0 2 MB

Technical Documentation

Product Specifications
Description Version Size
DS5855 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 1 MB
Technical Notes & Articles
Description Version Size
TN1163 TN1163: Description of WLCSP for microcontrollers and recommendations for its use 4.0 1 MB
TN0189 TN0189: STM8 bootloader frequently asked questions 2.4 320 KB
TN1205 TN1205: Tape and reel shipping media for STM8 and STM32 microcontrollers in FPN packages 3.0 753 KB
TN1206 TN1206: Tape and reel shipping media for STM8 and STM32 microcontrollers in QFP packages 3.0 830 KB
TN1207 TN1207: Tape and reel shipping media for STM8 and STM32 microcontrollers in SO packages 1.0 755 KB
TN1208 TN1208: Tape and reel shipping media for STM8 and STM32 microcontrollers in TSSOP and SSOP packages 1.0 743 KB
Reference Manuals
Description Version Size
RM0016 RM0016: STM8S series and STM8AF series 8-bit microcontrollers 12.1 4 MB
Programming Manuals
Description Version Size
PM0051 PM0051: How to program STM8S and STM8A Flash program memory and data EEPROM 3.3 192 KB
PM0044 PM0044: STM8 CPU programming manual 3.4 899 KB
Errata Sheets
Description Version Size
ES0110 ES0110: STM8S005xx and STM8S105xx device limitations 7.0 308 KB
Device Option Lists
Description Version Size
STM8S105x option list (16- to 32-Kbyte) 1.0 1 KB
Design Notes & Tips
Description Version Size
DN0005 DN0005: A three phase induction motor drive using a V/F control 2.1 528 KB

Tools and Software

Development Tools
Embedded Software
Evaluation Tools
Hardware Development Tools
Software Development Tools
MCUs Embedded Software
Product Evaluation Tools
Solution Evaluation Tools
Support & Community


Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STM8S105C6T3TR LQFP 48 7x7x1.4 Tape And Reel -40 125 Active 0.916 10000 NEC EAR99 CHINA MORE INFO
STM8S105C6T6 LQFP 48 7x7x1.4 Tray -40 85 Active 0.797 10000 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
STM8S105C6T6TR LQFP 48 7x7x1.4 Tape And Reel -40 85 Active 0.797 10000 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM8S105C6T3TR ActiveLQFP 48 7x7x1.4IndustrialEcopack2 0 0
STM8S105C6T6 ActiveLQFP 48 7x7x1.4IndustrialEcopack2 0 0
STM8S105C6T6TR ActiveLQFP 48 7x7x1.4IndustrialEcopack2 0 0
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(**) 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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