STMicroelectronics STM8S903F3M6TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.79 | $2.79 |
| 15+ | $1.83 | $27.45 |
| 25+ | $1.79 | $44.75 |
| 50+ | $1.69 | $84.50 |
| 100+ | $1.49 | $149.00 |
| N+ | $0.30 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM8S |
| Packaging | Cut Tape (CT) | 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 | 16 |
| 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 5x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 20-SO |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| ROHS |  |
The STM8S903F3 is a mainstream 8-bit microcontroller from STMicroelectronics, running at 16MHz with 8KB Flash and 1KB RAM. It operates from 2.95V to 5.5V, offering robust performance for industrial and consumer applications. The 20-SOIC package provides easy prototyping and manufacturing, while integrated timers, PWM, and communication interfaces simplify system design.
- Wide 5V supply range: Directly interfaces with legacy 5V sensors and actuators without level shifting.
- Proven STM8 core: Efficient C-code density and low interrupt latency for real-time control.
- Integrated EEPROM (if present): Allows data storage without external memory.
- Compact SOIC-20 package: Balances pin count and board area for cost-sensitive designs.
Automotive Lighting Control
5V operation and PWM channels directly drive LED strings for interior and exterior lighting, with reliable brown-out reset for safety.
Industrial Timer/Counters
16-bit timers and 16MHz clock provide precise timing for conveyor belt control and production line sequencing.
Power Supply Management
Built-in POR and WDT ensure safe startup and monitoring in AC-DC converters and DC-DC modules.
Small Home Appliances
Cost-effective 8-bit core with 8KB Flash handles motor speed control and user interface logic in blenders, fans, and coffee makers.
Sensor Signal Conditioning
Analog comparator and ADC (if available) allow direct interface with thermistors and pressure sensors for HVAC systems.
Battery Chargers
5.5V tolerance and PWM outputs enable simple CC-CV charging algorithms for Li-ion and lead-acid batteries.
- Q: What is the supply voltage range?
- A: 2.95V to 5.5V.
- Q: What is the core speed?
- A: 16MHz.
- Q: How much Flash and RAM are included?
- A: 8KB Flash and 1KB RAM.
- Q: What package is this variant?
- A: 20-SOIC wide body.
- Q: Is it suitable for automotive?
- A: Yes, with -40°C to 85°C range and robust peripherals.
STM8S903F3M6TR.pdf
- Q: What is the supply voltage range?
- A: 2.95V to 5.5V.
- Q: What is the core speed?
- A: 16MHz.
- Q: How much Flash and RAM are included?
- A: 8KB Flash and 1KB RAM.
- Q: What package is this variant?
- A: 20-SOIC wide body.
- Q: Is it suitable for automotive?
- A: Yes, with -40°C to 85°C range and robust peripherals.
