STMicroelectronics STM8S903K3T6CTR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.87 | $2.87 |
| 15+ | $1.89 | $28.35 |
| 25+ | $1.85 | $46.25 |
| 50+ | $1.74 | $87.00 |
| 100+ | $1.54 | $154.00 |
| N+ | $0.31 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM8S |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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-LQFP (7x7) |
| Package / Case | 32-LQFP |
| ROHS |
The STM8S903K3T6CTR is a high-performance 8-bit microcontroller from STMicroelectronics, featuring an advanced STM8 core running at 16MHz. With 8KB of Flash and 1KB of RAM, it offers a balanced solution for cost-sensitive applications. Its integrated 10-bit ADC, PWM timers, and robust watchdog ensure reliable operation in industrial and consumer environments. Operating from 2.95V to 5.5V, it supports both 3.3V and 5V logic, making it versatile for a wide range of embedded designs.
- High Efficiency: The 16MHz STM8 core delivers up to 20 MIPS, ensuring fast processing for real-time tasks.
- Wide Voltage Range: Supports 2.95V to 5.5V, simplifying power supply design and enabling direct 5V sensor interfacing.
- Rich Analog Features: 7-channel 10-bit ADC allows precise analog signal measurement without external components.
- Compact Package: The 32-LQFP (7x7mm) package saves PCB space while providing ample I/O pins.
- Enhanced Reliability: Includes brown-out reset, power-on reset, and watchdog timer for fail-safe operation.
Industrial Automation
The STM8S903K3T6CTR can be used in PLCs and sensor interfaces, providing reliable 8-bit control with its 16MHz core and robust I/O capabilities.
Motor Control
With built-in PWM and a 10-bit ADC, this MCU is suitable for simple brushless DC motor control in fans, pumps, and power tools.
Smart Home Devices
Its low power consumption and 5V compatibility make it ideal for smart switches, thermostats, and lighting control units.
Battery-Powered Instruments
The wide voltage range and low-cost architecture enable use in portable meters and handheld measurement tools.
Automotive Body Electronics
Operating up to 85°C, it can handle basic body control functions like window lifts and mirror adjustment in entry-level vehicles.
Consumer Appliances
From washing machines to microwave ovens, this MCU provides cost-effective control with its rich peripheral set.
- Q: What is the core architecture of the STM8S903K3T6CTR?
- A: It is based on the STM8 8-bit core, running at up to 16 MHz.
- Q: What is the operating voltage range?
- A: It operates from 2.95V to 5.5V, making it suitable for 3.3V and 5V systems.
- Q: How much Flash and RAM does it have?
- A: It features 8KB of Flash memory and 1KB of RAM.
- Q: What peripherals are available?
- A: It includes a 10-bit ADC with 7 channels, PWM, WDT, and brown-out detection.
- Q: What is the package type?
- A: It comes in a 32-pin LQFP package (7x7 mm).
- Q: What are typical applications?
- A: It is ideal for industrial control, consumer electronics, and small appliance applications.
- Q: What is the core architecture of the STM8S903K3T6CTR?
- A: It is based on the STM8 8-bit core, running at up to 16 MHz.
- Q: What is the operating voltage range?
- A: It operates from 2.95V to 5.5V, making it suitable for 3.3V and 5V systems.
- Q: How much Flash and RAM does it have?
- A: It features 8KB of Flash memory and 1KB of RAM.
- Q: What peripherals are available?
- A: It includes a 10-bit ADC with 7 channels, PWM, WDT, and brown-out detection.
- Q: What is the package type?
- A: It comes in a 32-pin LQFP package (7x7 mm).
- Q: What are typical applications?
- A: It is ideal for industrial control, consumer electronics, and small appliance applications.

STM8S903K3T6CTR.pdf