STMicroelectronics STM8S003F3P6TR

Overview

STM8S003F3P6TR from STMicroelectronics is a value-line 8-bit microcontroller featuring a 16 MHz STM8 core, 8 Kbyte Flash memory, 128-byte data EEPROM, 10-bit ADC with 5 channels, and integrated UART, SPI, and I²C interfaces. It operates from 2.95 V to 5.5 V and targets cost-sensitive embedded control applications such as appliance motor control, LED lighting drivers, and industrial sensor nodes.

For engineers reviewing the STM8S003F3P6TR datasheet, STM8S003F3P6TR pinout, STM8S003F3P6TR application, or STM8S003F3P6TR equivalent, key selection criteria include its TSSOP20 package, SWIM debug interface, 20-pin I/O count (including 16 high-sink outputs), low-power active-halt mode (0.35 µA typical), and support for LIN master and SmartCard protocols via UART.

Technical Context

The STM8S003F3P6TR implements a Harvard-architecture 8-bit core with 3-stage pipeline and extended instruction set, enabling efficient C code execution at up to 16 MHz. Its clock system integrates four sources: external crystal, external clock input, user-trimmable 16 MHz RC, and low-power 128 kHz RC - all monitored by a clock security system.

Interrupt handling uses a nested controller supporting 32 vectors and up to 27 external interrupts across 6 priority levels. Peripheral integration includes three timers (16-bit advanced TIM1 with dead-time insertion, 16-bit general-purpose TIM2, and 8-bit basic TIM4), plus auto-wakeup and independent watchdog timers.

Key Specifications

Pinout & Package

TSSOP20 package (6.5 × 4.4 mm, 0.65 mm pitch), RoHS-compliant, surface-mount compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with STM8S003K3T6, the STM8S003F3P6TR trades I/O count and ADC channels for compact TSSOP20 size and lower system cost; versus STM8L051F3P6, it delivers higher performance and richer peripherals at the expense of ~10× higher active current.

Availability

STM8S003F3P6TR is available at Aetrix Electronics and suitable for appliance motor control, LED lighting drivers, industrial sensor nodes, and smart meter front-ends requiring stable component supply and long-term production continuity.

Supply support for STM8S003F3P6TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STM8S value line targets cost-sensitive embedded control applications, emphasizing robustness, ease of use, and minimal external components - exemplified by integrated RC oscillators, high-sink I/O, and SWIM debug.

FAQ

Does STM8S003F3P6TR support in-circuit debugging without additional hardware?

Yes. The integrated Single-Wire Interface Module (SWIM) enables full in-circuit programming and non-intrusive debugging using only the PC7 (SWIM) pin and VDD/VSS. No external debugger is required for basic firmware development - ST-LINK/V2 or equivalent tools provide full trace and breakpoint capability.

What is the maximum achievable ADC sampling rate on STM8S003F3P6TR?

The 10-bit ADC achieves up to 170 kSPS in continuous conversion mode with prescaler configured for maximum speed. Conversion time is 13.5 µs per sample (including acquisition), limited by internal clock division and bus bandwidth - verified in DS7147 Rev 10 Section 9.3.10.

Can TIM1 generate complementary PWM outputs with programmable dead-time?

Yes. TIM1 is a 16-bit advanced control timer with 3 complementary output channels and configurable dead-time insertion (1–128 clock cycles). It synchronizes with other timers and supports break-input for emergency shutdown - essential for motor gate-drive safety compliance.

Is the internal 16 MHz RC oscillator factory-calibrated, and can it be re-trimmed in-system?

The HSI oscillator is factory-trimmed to ±1% at 25 °C and 3.3 V, and users can adjust trimming via the CLK_HSITRIMR register across a ±12.5% range. Real-time calibration is possible using an external reference clock or RTC tick - documented in Section 4.5 of DS7147 Rev 10.