Mainstream Access line 8-bit MCU with 16 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


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Description バージョン サイズ
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
Description バージョン サイズ
AN3143 AN3143: Audio software codec for the STM8S 1.3 250 KB
AN3280 AN3280: Displaying variable voltage on a bar of LEDs using STM8S-DISCOVERY 1.3 148 KB
AN1709 AN1709: EMC design guide for ST microcontrollers 2.0 843 KB
AN2860 AN2860: EMC guidelines for STM8 microcontrollers 5.1 262 KB
AN1181 AN1181: Electrostatic discharge sensitivity measurement 1.6 49 KB
AN2752 AN2752: Getting started with the STM8S and STM8A 5.2 2 MB
AN3236 AN3236: Guidelines to increase the number of touch sensing touchkeys 4.0 300 KB
AN3208 AN3208: Microstepping motor drive with STM8A and STM8S microcontrollers 1.3 284 KB
AN2645 AN2645: Migration and compatibility guidelines for STM8S microcontroller applications 1.4 525 KB
AN2867 AN2867: Oscillator design guide for STM8AF/AL/S and STM32 microcontrollers 11.0 2 MB
AN3259 AN3259: RS232 communications with a terminal using the STM8S-DISCOVERY 1.2 299 KB
AN3258 AN3258: STM8AF and STM8S series HSI oscillator calibration using LIN automatic resynchronization 2.0 247 KB
AN3298 AN3298: STM8S DALI slave library 1.2 392 KB
AN2945 AN2945: STM8S and STM32™ MCUs: a consistent 8/32-bit product line for painless migration 1.3 212 KB
AN2857 AN2857: STM8S and STM8A family power management 3.2 268 KB
AN2822 AN2822: STM8S and STM8A high speed internal oscillator calibration 2.2 195 KB
AN2646 AN2646: Smartcard interface with the STM8S microcontroller 2.4 442 KB
AN2658 AN2658: Using the analog to digital converter of the STM8S microcontroller 2.5 183 KB
Technical Notes & Articles
Description バージョン サイズ
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
Description バージョン サイズ
UM1477 UM1477: STEVAL-IFN004V1: BLDC six-step motor drive based on the L6230 and STM8 1.1 1008 KB
Description バージョン サイズ
RM0016 RM0016: STM8S および STM8A マイクロコントローラファミリ 14.0 5 MB
Description バージョン サイズ
PM0051 PM0051: How to program STM8S and STM8A Flash program memory and data EEPROM 3.4 191 KB
PM0044 PM0044: STM8 CPU programming manual 3.4 899 KB
Errata Sheets
Description バージョン サイズ
ES0110 ES0110: STM8S005xx and STM8S105xx device limitations 7.0 308 KB
Device Option Lists
Description バージョン サイズ
STM8S105x option list (16- to 32-Kbyte) 1.0 1 KB
Design Notes & Tips
Description バージョン サイズ
DN0005 DN0005: A three phase induction motor drive using a V/F control 2.1 528 KB

HW Model, CAD Libraries & SVD

HW Model, CAD Libraries & SVD
Description バージョン サイズ
STM8S CAD Symbol and Footprint files 1.3 1 MB

プレゼンテーション & トレーニング資料

Description バージョン サイズ
STM32 and STM8 Functional Safety Packages 2 1 MB
STM32 and STM8 embedded software solutions 3.2 2 MB

Publications and Collaterals

Description バージョン サイズ
Get ready for the largest IoT development ecosystem 17.02 653 KB
STM8CubeMX eases STM8 configuration 17.03 319 KB
Description バージョン サイズ
STM8 8-bit MCU family 17.03 899 KB

品質 & 信頼性

Product Certifications
Description バージョン サイズ
VDE certification for STM8S ClassB f/w 1.0 1 MB
VDE certification for STM8S ClassB f/w 1.0 1 MB

ツール & ソフトウェア

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