STM8S103F3U6ATR

Microcontrollers Overview

The STM8S103F3U6ATR is an 8-bit microcontroller from the STM8S Access Line, featuring a 16 MHz advanced core with Harvard architecture and a 3-stage pipeline. It provides 8 kB of Flash program memory and 1 kB of RAM. The device operates within a voltage range of 2.95 V to 5.5 V and supports a maximum clock frequency of 16 MHz. It includes integrated peripherals such as a 10-bit ADC, one SPI channel, one I2C channel, one UART, and three 16-bit PWM units. The component is housed in a 20-pin UFQFPN package.

Microcontrollers Feature Summary

• Advanced 8-bit STM8 core with 16 MHz operation for up to 20 MIPS performance
• Integrated true data EEPROM supporting high endurance cycles
• Robust design with independent watchdogs and clock security system
• High system integration with internal oscillators and brown-out reset

Microcontrollers Applications

• General-purpose embedded control systems
• Industrial applications requiring robustness and low cost
• Consumer electronics utilizing 8-bit processing
• Smart metering and energy management devices

Microcontrollers Procurement Notes

Verify the specific suffix U6ATR against official STMicroelectronics documentation to confirm the tape-and-reel packaging configuration and temperature grade. Ensure compatibility with the required 20-pin UFQFPN footprint during PCB layout. Cross-reference the part number with the latest datasheet RM0016 to validate peripheral availability and electrical characteristics for your specific application environment.

Microcontrollers Selection Notes

Select this component when an 8-bit MCU with 8 kB Flash and 16 MHz speed is required. It is suitable for designs needing integrated EEPROM and standard communication interfaces like SPI, I2C, and UART. Consider the 2.95 V to 5.5 V operating range and the UFQFPN-20 package constraints. This part fits low-density STM8S requirements without CAN or USB connectivity.

Microcontrollers Part Context

This microcontroller belongs to the STM8S Access Line, categorized as a low-density device within the broader STM8 family. It utilizes the STM8 core architecture, offering a balance of performance and cost-effectiveness. The series is designed for applications demanding reliable 8-bit processing with moderate memory capacity and essential peripheral sets for general control tasks.

Microcontrollers Replacement Considerations

Check for other STM8S103 variants with different packages (e.g., TSSOP) or suffixes if pinout compatibility allows. Verify functional equivalence with STM8S103F3P6 or STM8S103K3T6 only after confirming package and peripheral alignment via official substitution lists.