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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM8S
Packaging Tube |
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 128 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-TSSOP
Package / Case 20-TSSOP (0.173", 4.40mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM8S003F3P6 from STMicroelectronics is an 8-bit STM8 microcontroller in a 20-pin TSSOP package. It operates from 2.95V to 5.5V and runs at 16MHz, with 8KB Flash and 1KB RAM. It features a 10-bit ADC, multiple timers with PWM, UART, SPI, and I2C, making it a cost-effective solution for a wide range of embedded applications.

  • Rich Peripheral Set: UART, SPI, I2C, and multiple timers enable versatile connectivity.
  • 20-Pin Package: Offers more I/O than 8-pin alternatives for complex designs.
  • 5V Compatibility: Direct interface with legacy 5V logic and sensors.
  • 8KB Flash: Sufficient for mid-complexity firmware.
  • Proven STM8 Architecture: Reliable and widely adopted in industrial applications.

Multi-Channel Sensor Hubs

The 20-pin TSSOP provides enough I/O to interface with multiple analog sensors in data loggers.

Home Appliance Control

With 8KB Flash and PWM, it manages washing machine cycles, dishwasher valves, and dryer timers.

Industrial Relay Logic

5V operation and robust I/O drive relays directly for motor starters or lighting contactors.

Battery Chargers

Monitor charge current and voltage with its ADC, implementing CC-CV algorithms for Li-ion batteries.

Point-of-Sale Terminals

Handle keypad scanning and display multiplexing in payment devices with its ample GPIO count.

Medical Monitoring Devices

Low power and integrated peripherals support portable pulse oximeters or blood pressure monitors.

Q: What is the supply voltage range?
A: It operates from 2.95V to 5.5V.
Q: What is the maximum clock speed?
A: The STM8 core runs at up to 16MHz.
Q: How much Flash memory is included?
A: It provides 8KB of program memory.
Q: What package is this device available in?
A: It comes in a 20-pin TSSOP (0.173", 4.40mm Width) package.
Q: What is the operating temperature range?
A: It is rated for -40°C to 85°C.
Base Product Number : STM8S003F3
16MHz 20-TSSOP 5V 8-bit MCU appliance I2C industrial SPI STM8 STM8S STMicroelectronics UART
Q: What is the supply voltage range?
A: It operates from 2.95V to 5.5V.
Q: What is the maximum clock speed?
A: The STM8 core runs at up to 16MHz.
Q: How much Flash memory is included?
A: It provides 8KB of program memory.
Q: What package is this device available in?
A: It comes in a 20-pin TSSOP (0.173", 4.40mm Width) package.
Q: What is the operating temperature range?
A: It is rated for -40°C to 85°C.