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.
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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
- Core
Circuit Diagram
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - STM8S903K3
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Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STM8S903K3B6 | NRND | PDIP-32 | Industrial | Ecopack2 | |
| STM8S903K3T3C | NRND | LQFP 32 7x7x1.4 mm | Industrial | Ecopack2 | |
| STM8S903K3T3CTR | NRND | LQFP 32 7x7x1.4 mm | Industrial | Ecopack2 | |
| STM8S903K3T6C | NRND | LQFP 32 7x7x1.4 mm | Industrial | Ecopack2 | |
| STM8S903K3T6CTR | NRND | LQFP 32 7x7x1.4 mm | Industrial | Ecopack2 | |
| STM8S903K3U3 | NRND | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 | |
| STM8S903K3U3TR | NRND | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 | |
| STM8S903K3U6 | NRND | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 | |
| STM8S903K3U6TR | NRND | UFQFPN 32 5x5x0.55 mm | Industrial | Ecopack2 |
STM8S903K3B6
Package:
PDIP-32Material Declaration**:
STM8S903K3T3CTR
Package:
LQFP 32 7x7x1.4 mmMaterial Declaration**:
(**) 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.
Sample & Buy
| Part Number | Order from distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| STM8S903K3T3C | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tray | LQFP 32 7x7x1.4 mm | -40 | 125 | MALAYSIA | | ||
| STM8S903K3T6C | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tray | LQFP 32 7x7x1.4 mm | -40 | 85 | MALAYSIA | | ||
| STM8S903K3U6 | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tray | UFQFPN 32 5x5x0.55 mm | -40 | 85 | CHINA | | ||
| STM8S903K3B6 | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | PDIP-32 | - | - | CHINA | | ||
| STM8S903K3T3CTR | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tape and Reel | LQFP 32 7x7x1.4 mm | -40 | 125 | MALAYSIA | | ||
| STM8S903K3U3TR | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tape and Reel | UFQFPN 32 5x5x0.55 mm | -40 | 125 | CHINA | | ||
| STM8S903K3T6CTR | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tape and Reel | LQFP 32 7x7x1.4 mm | -40 | 85 | MALAYSIA | | ||
| STM8S903K3U6TR | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tape and Reel | UFQFPN 32 5x5x0.55 mm | -40 | 85 | CHINA | | ||
| STM8S903K3U3 | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tray | UFQFPN 32 5x5x0.55 mm | -40 | 125 | CHINA | | ||
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors