STMicroelectronics STM8S103F2P6TR

Overview

STM8S103F2P6TR from STMicroelectronics is an 8-bit access-line microcontroller featuring a 16 MHz STM8 core, 8 Kbyte Flash program memory, 640 byte data EEPROM, 10-bit ADC with 5 channels, three timers (including advanced control timer TIM1), and UART/SPI/I²C interfaces. It operates from 2.95–5.5 V and targets cost-sensitive industrial control, sensor interface, and appliance motor management applications.

For engineers reviewing the STM8S103F2P6TR datasheet, STM8S103F2P6TR pinout, STM8S103F2P6TR application, or STM8S103F2P6TR equivalent, this device supports SWIM single-wire debug, low-power active-halt/halt modes, high-sink I/Os (21 pins), and robust immunity to current injection-critical for embedded designs requiring deterministic timing and field reliability.

Technical Context

The STM8S103F2P6TR implements a Harvard-architecture 8-bit core with 3-stage pipeline and extended instruction set, enabling efficient C execution and deterministic interrupt latency. Its clock system integrates four independent sources: user-trimmable 16 MHz RC, 128 kHz low-power RC, external crystal/resonator, and external clock input-with clock security monitoring and flexible peripheral gating.

Analog and timing subsystems include a 10-bit ±1 LSB ADC with scan mode and analog watchdog, TIM1 (16-bit advanced timer with dead-time insertion and 3 complementary outputs), TIM2 (16-bit general-purpose timer), and TIM4 (8-bit basic timer). Communication is handled by full-duplex UART (with LIN/SmartCard/IrDA support), SPI up to 8 Mbit/s, and I²C up to 400 kbit/s.

Key Specifications

Pinout & Package

STM8S103F2P6TR is housed in a 20-pin TSSOP package (4.4 mm body width, 0.65 mm pitch) with exposed thermal pad. Pin functions are validated per STMicroelectronics DS6120 Rev 15 Section 5.2.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM8S003F3P6, the STM8S103F2P6TR adds critical motor-control peripherals and reliable data retention; versus EFM8BB10F8G-A-QFN20, it delivers superior analog precision, integrated nonvolatile storage, and proven industrial I/O robustness.

Availability

STM8S103F2P6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart appliance control, and building automation systems requiring stable component supply over extended product lifecycles.

Supply support for STM8S103F2P6TR 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 management ICs, sensors, and automotive-grade components.

The STM8S series targets cost-optimized industrial and consumer applications requiring high reliability, low power, and mature toolchain support-designed specifically for deterministic real-time control in resource-constrained environments.

FAQ

What debug interface does STM8S103F2P6TR support?

The STM8S103F2P6TR uses the SWIM (Single Wire Interface Module) protocol for in-circuit programming and debugging. It requires only one dedicated pin (SWIM) and ground, supporting full-speed debugging, flash erase/write, and register inspection via ST-LINK/V2 or compatible debuggers-no JTAG header needed.

Does STM8S103F2P6TR include hardware CRC or AES acceleration?

No. The STM8S103F2P6TR does not integrate hardware CRC computation or AES encryption engines. It relies on software-implemented algorithms for checksums or security functions. For applications requiring accelerated cryptographic operations, consider the STM32L4 or STM8AF families.

Can STM8S103F2P6TR operate from a 3.3 V supply with full 16 MHz performance?

Yes. Per DS6120 Rev 15 Table 19, the device guarantees 16 MHz operation across the full 2.95–5.5 V supply range, including at 3.3 V. No frequency derating is required, and all peripherals-including ADC, timers, and communication interfaces-function at full specification.

Is there a drop-in replacement for STM8S103F2P6TR in QFN20 package?

Yes: STM8S103F2U6TR is the identical die in UFQFPN20 (3 × 3 mm) package with same pinout and electrical characteristics. It offers improved thermal performance and smaller footprint but requires requalification of soldering profile and PCB layout due to different land pattern and exposed pad requirements.