STMicroelectronics

STM8S903K3U6  

Microcontrollers

STM8S903K3U6 Description

The STM8S903K3U6 is an advanced 8-bit microcontroller from STMicroelectronics, designed to deliver high performance and versatility in a compact form factor. This microcontroller is part of the STM8S series, known for its robustness and efficiency in embedded systems. The STM8S903K3U6 features a core STM8 processor with a clock speed of 16MHz, ensuring rapid processing capabilities. It is equipped with 8KB of FLASH program memory (8K x 8) and 1KB of RAM (1K x 8), providing ample storage for complex applications. The device operates within a voltage range of 2.95V to 5.5V, making it suitable for a variety of power supply conditions.

The STM8S903K3U6 also includes 640 bytes of EEPROM memory, which is ideal for storing critical data that needs to be retained even when power is lost. The microcontroller supports a wide range of connectivity options, including I2C, IrDA, LINbus, SPI, and UART/USART, facilitating seamless communication with other devices. It features an internal oscillator, eliminating the need for external clock sources and reducing the overall footprint of the design.

The STM8S903K3U6 is housed in a 32-lead UFQFPN package, suitable for surface mount technology (SMT), which is ideal for high-density PCB layouts. The device is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental standards. With a moisture sensitivity level (MSL) of 3 (168 hours), it is well-suited for manufacturing processes that require extended exposure to moisture.

STM8S903K3U6 Features

• Core Processor: STM8 core processor with a clock speed of 16MHz.
• Program Memory: 8KB FLASH memory (8K x 8).
• RAM Size: 1KB RAM (1K x 8).
• EEPROM Size: 640 bytes.
• Voltage Range: 2.95V to 5.5V.
• Connectivity: I2C, IrDA, LINbus, SPI, UART/USART.
• Data Converters: 7-channel 10-bit ADC.
• I/O Pins: 28 I/O pins.
• Oscillator: Internal oscillator.
• Package: 32-lead UFQFPN.
• Mounting Type: Surface Mount.
• Environmental Compliance: REACH unaffected and RoHS3 compliant.
• Moisture Sensitivity Level: MSL 3 (168 hours).

STM8S903K3U6 Applications

The STM8S903K3U6 is ideal for a variety of applications due to its versatile feature set and robust performance. Some specific use cases include:

• Consumer Electronics: Ideal for devices requiring high performance and low power consumption, such as smart home appliances and wearable technology.
• Industrial Automation: Suitable for control systems and sensors that require reliable data processing and communication.
• Automotive: Perfect for LINbus-based automotive applications, where communication reliability and data integrity are crucial.
• Medical Devices: Ideal for medical equipment that requires precise data acquisition and processing, such as portable diagnostic tools.
• IoT Devices: Excellent for IoT applications that require multiple communication interfaces and low power consumption.

Conclusion of STM8S903K3U6

The STM8S903K3U6 stands out as a versatile and high-performance 8-bit microcontroller, offering a comprehensive set of features tailored for modern embedded systems. Its robust connectivity options, ample memory, and low power consumption make it an ideal choice for a wide range of applications. The STM8S903K3U6's compliance with environmental standards and its surface mount packaging further enhance its suitability for modern manufacturing processes. Whether used in consumer electronics, industrial automation, or IoT devices, the STM8S903K3U6 delivers reliable performance and exceptional value.

STM8S903K3U6 Documents

Download datasheets and manufacturer documentation for STM8S903K3U6

Datasheets :

STM8S903K3, STM8S903F3 Datasheet      

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HTML Datasheet :

STM8S903K3, STM8S903F3 Datasheet