STM8S903K3

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Mainstream Application specific line 8-bit MCU with 8 Kbytes Flash, 16 MHz CPU, integrated EEPROM

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Product overview

Description

The STM8S903K3/F3 access line 8-bit microcontrollers offer 8 Kbyte Flash program memory, plus integrated true data EEPROM. The STM8S microcontroller family 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.

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.

Full documentation is offered as well as a wide choice of development tools.

  • All features

    • Core
      • 16 MHz advanced STM8 core with Harvard architecture and 3-stage pipeline
      • Extended instruction set
    • Memories
      • Program memory: 8 Kbyte Flash; data retention 20 years at 55 °C after 10 kcycle
      • Data memory: 640 byte true data EEPROM; endurance 300 kcycle
      • RAM: 1 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 28 external interrupts on 7 vectors
    • Timers
      • Advanced control timer: 16-bit, 4 CAPCOM channels, 3 complementary outputs, dead-time insertion and flexible synchronization
      • 16-bit general purpose timer, with 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 7 multiplexed channels + 1 internal channel, scan mode and analog watchdog
      • Internal reference voltage measurement
    • 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
    • Unique ID
      • 96-bit unique key for each device

Circuit Diagram

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM8S903K3T3C
Active
LQFP 32 7x7x1.4 mm Industrial Ecopack2
STM8S903K3T3CTR
Active
LQFP 32 7x7x1.4 mm Industrial Ecopack2
STM8S903K3T6C
Active
LQFP 32 7x7x1.4 mm Industrial Ecopack2
STM8S903K3T6CTR
Active
LQFP 32 7x7x1.4 mm Industrial Ecopack2
STM8S903K3U3
Active
UFQFPN 32 5x5x0.55 mm Industrial Ecopack2
STM8S903K3U3TR
Active
UFQFPN 32 5x5x0.55 mm Industrial Ecopack2
STM8S903K3U6
Active
UFQFPN 32 5x5x0.55 mm Industrial Ecopack2
STM8S903K3U6TR
Active
UFQFPN 32 5x5x0.55 mm Industrial Ecopack2

STM8S903K3T3C

Package:

LQFP 32 7x7x1.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP 32 7x7x1.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8S903K3T3CTR

Package:

LQFP 32 7x7x1.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP 32 7x7x1.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8S903K3T6C

Package:

LQFP 32 7x7x1.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP 32 7x7x1.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8S903K3T6CTR

Package:

LQFP 32 7x7x1.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP 32 7x7x1.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8S903K3U3

Package:

UFQFPN 32 5x5x0.55 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

UFQFPN 32 5x5x0.55 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8S903K3U3TR

Package:

UFQFPN 32 5x5x0.55 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

UFQFPN 32 5x5x0.55 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8S903K3U6

Package:

UFQFPN 32 5x5x0.55 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

UFQFPN 32 5x5x0.55 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STM8S903K3U6TR

Package:

UFQFPN 32 5x5x0.55 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

UFQFPN 32 5x5x0.55 mm

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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