STMicroelectronics STM8S903K3U6
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.72 | $2.72 |
| 15+ | $1.78 | $26.70 |
| 25+ | $1.75 | $43.75 |
| 50+ | $1.65 | $82.50 |
| 100+ | $1.46 | $146.00 |
| N+ | $0.29 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM8S |
| Packaging | Tray | NULL |
| Core Processor | STM8 |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | I2C, IrDA, LINbus, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 28 |
| Program Memory Size | 8KB (8K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 640 x 8 |
| RAM Size | 1K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.95V ~ 5.5V |
| Data Converters | A/D 7x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-UFQFPN (5x5) |
| Package / Case | 32-UFQFN Exposed Pad |
| ROHS |
The STM8S903K3U6 is an 8-bit microcontroller from STMicroelectronics featuring the STM8 core. It runs at 16MHz and provides 8KB of flash memory and 1KB of RAM. With a supply voltage range of 2.95V to 5.5V, it includes brown-out detection, power-on reset, PWM, and a watchdog timer. The 32-UFQFN package makes it suitable for space-limited applications requiring robust performance.
- Robust protection features: BOR and POR ensure safe operation during power-up and brown-out conditions.
- High-speed PWM: Enables precise control in motor and lighting applications.
- Wide temperature range: -40°C to 85°C supports industrial environments.
- Cost-effective 8-bit solution: Balances performance and cost for high-volume products.
Automotive Body Electronics
Use in window lift or mirror control modules. The 16MHz core and PWM outputs handle DC motor speed regulation efficiently.
Industrial Sensors
Process analog signals from pressure or temperature sensors. The integrated ADC and 5V operation simplify sensor conditioning.
Battery-Powered Tools
Manage brushless DC motors in cordless drills. The low-voltage detection (BOR) protects against deep discharge.
Smart Lighting
Control LED dimming in architectural lighting. The PWM timers provide smooth brightness control without external DACs.
Security Systems
Implement keypad scanning and alarm logic in access control panels. The WDT ensures the system recovers from transient faults.
Medical Monitoring
Use in portable pulse oximeters or thermometers. The small UFQFN package fits compact handheld designs.
- Q: What is the core architecture of the STM8S903K3U6?
- A: It uses the STM8 8-bit core running at up to 16MHz.
- Q: What is the memory configuration?
- A: It has 8KB of program flash and 1KB of RAM.
- Q: What is the supply voltage range?
- A: It operates between 2.95V and 5.5V.
- Q: What package options are available?
- A: This part is offered in a 32-UFQFN exposed pad package.
- Q: What is the core architecture of the STM8S903K3U6?
- A: It uses the STM8 8-bit core running at up to 16MHz.
- Q: What is the memory configuration?
- A: It has 8KB of program flash and 1KB of RAM.
- Q: What is the supply voltage range?
- A: It operates between 2.95V and 5.5V.
- Q: What package options are available?
- A: This part is offered in a 32-UFQFN exposed pad package.

STM8S903K3U6.pdf