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STM8S003F3P6

STM8 8-bit MCU, 16MHz, 8KB Flash, 1KB RAM, UART/SPI/I2C, TSSOP-20

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Manufacturer Part：

STM8S003F3P6

Package：

TSSOP-20 (6.5 x 4.4 x 1.0 mm)

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Description

Product Overview

The STM8S003F3P6 is an 8-bit microcontroller from STMicroelectronics featuring the STM8 core at 16MHz maximum clock frequency. It includes 8KB Flash program memory, 1KB RAM, and 128-byte EEPROM. The device offers extensive peripherals including UART, SPI, I2C, and multiple timers, all in a compact TSSOP-20 package, making it ideal for cost-sensitive applications.

Key Specifications

Core STM8 8-bit
Max Clock Frequency 16MHz
Flash Memory 8KB
RAM 1KB
EEPROM 128 bytes
I/O Pins 16
ADC 5-channel 10-bit
Communication UART, SPI, I2C
Timers 1x 16-bit, 1x 8-bit
Supply Voltage 2.95V to 5.5V
Operating Temperature -40C to +125C
Package TSSOP-20

Features

  • STM8 core with Harvard architecture and 3-stage pipeline
  • 8KB Flash with 10K erase/write cycles endurance
  • 128-byte true EEPROM data memory
  • 5-channel 10-bit ADC with analog watchdog
  • UART, SPI, and I2C serial interfaces
  • Advanced control timer and 8-bit general-purpose timer
  • Internal 16MHz RC oscillator with 1% accuracy
  • In-circuit programming (ICP) and in-application programming (IAP)

Applications

  • Home appliances and white goods
  • Industrial control and motor drives
  • Consumer electronics
  • Power management systems
  • Sensor interface and conditioning

The STM8S003F3P6 from STMicroelectronics is an 8-bit microcontroller based on the STM8 core, offering 16MHz operation with 8KB Flash, 1KB RAM, and 128-byte EEPROM in a compact TSSOP-20 package. It features a comprehensive peripheral set including UART, SPI, I2C, 10-bit ADC, and multiple timers. The internal 16MHz RC oscillator provides 1% accuracy without external components. With in-circuit and in-application programming support, it enables flexible firmware updates in the field.

The STM8S003F3P6 is based on the STM8 8-bit core with Harvard architecture and a 3-stage instruction pipeline for efficient code execution at 16MHz. The CPU accesses Flash, RAM, and EEPROM through separate address spaces. Peripherals are connected via the internal bus and include UART for asynchronous serial communication, SPI for high-speed synchronous communication, I2C for multi-device bus communication, and ADC for analog signal conversion. Timers provide PWM generation, input capture, and timing functions. The device supports multiple low-power modes including wait, active-halt, and halt for power optimization.

Pin Name Type Function
1 PD4/CLK_CCO/BEEP I/O Port D4 / Clock output / BEEP
2 PD5/AIN5/TXD I/O Port D5 / ADC in5 / UART TX
3 PD6/AIN6/RXD I/O Port D6 / ADC in6 / UART RX
4 RST Reset Reset (active low)
5 PA1/OSCIN I/O Port A1 / Oscillator input
6 PA2/OSCOUT I/O Port A2 / Oscillator output
7 PC4/CLK_CCO I/O Port C4 / Clock output
8 PC5/SPI_SCK I/O Port C5 / SPI clock
9 PC6/SPI_MOSI I/O Port C6 / SPI MOSI
10 PC7/SPI_MISO I/O Port C7 / SPI MISO
11 VDD Power Positive supply (2.95-5.5V)
12 VSS Power Ground
13 PB4/AIN2/I2C_SDA I/O Port B4 / ADC in2 / I2C data
14 PB5/AIN3/I2C_SCL I/O Port B5 / ADC in3 / I2C clock
15 PC3/TIM1_CH3/TLI I/O Port C3 / Timer1 CH3
16 PC1/AIN1/TIM1_CH1 I/O Port C1 / ADC in1 / Timer1 CH1
17 PC2/AIN2/TIM1_CH2 I/O Port C2 / ADC in2 / Timer1 CH2
18 NRST Reset Not connected (internal reset)
19 PD1/AIN4/SWIM I/O Port D1 / ADC in4 / SWIM debug
20 PD3/AIN3/TIM2_CH2 I/O Port D3 / ADC in3 / Timer2 CH2
  • Home appliance control (washing machine, microwave, fan)
  • Industrial sensor interface and signal conditioning
  • Motor control for small BLDC and stepper motors
  • Consumer electronics power management
  • LED lighting control and dimming
Manufacturer Part Number Package Notes
STMicroelectronics STM8S103F3P6 TSSOP-20 Pin-compatible upgrade, more Flash
STMicroelectronics STM8S005K6T6 LQFP-32 More I/O, 32KB Flash
Microchip PIC16F18325-I/P PDIP-14 8-bit alternative with similar features
Nuvoton N76E003AT20 TSSOP-20 8051 core alternative
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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