STMicroelectronics STM8S103K3T6C

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM8S
Packaging Tray |
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 4x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package -
Package / Case 32-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM8S103K3T6C from STMicroelectronics is a 16MHz STM8 microcontroller with 8KB Flash and 1K x 8 RAM. It operates from 2.95V to 5.5V and comes in a 32-LQFP package. Integrated brown-out reset, POR, PWM, and WDT make it a cost-effective choice for basic control tasks.

  • 16MHz STM8 core – efficient 8-bit performance.
  • 5.5V operation – compatible with legacy 5V systems.
  • 32-LQFP – more I/O pins for complex designs.
  • Integrated WDT – enhances system reliability.

Consumer Electronics

8KB Flash and 16MHz are sufficient for remote controls and small appliances.

Power Tools

5.5V operation and PWM control motor speed with robust protection.

Automotive Aftermarket

Wide voltage tolerance handles vehicle power fluctuations.

Lighting Control

PWM outputs drive LED dimming circuits efficiently.

Simple Industrial Timers

WDT and brown-out reset ensure reliable operation in factories.

HVAC Sensors

Low pin count and small LQFP package fit compact thermostat designs.

Q: What is the core?
A: STM8 8-bit core.
Q: What is the max frequency?
A: 16MHz.
Q: What is the voltage range?
A: 2.95V to 5.5V.
Q: How much Flash and RAM?
A: 8KB Flash and 1K x 8 RAM.
Q: What package is this?
A: 32-LQFP.
Base Product Number : STM8S103K3
16MHz 1K RAM 32-LQFP 8-bit 8KB Flash consumer industrial MCU PWM STM8 WDT
Q: What is the core?
A: STM8 8-bit core.
Q: What is the max frequency?
A: 16MHz.
Q: What is the voltage range?
A: 2.95V to 5.5V.
Q: How much Flash and RAM?
A: 8KB Flash and 1K x 8 RAM.
Q: What package is this?
A: 32-LQFP.