STMicroelectronics STM8S207C8T6

Overview

STM8S207C8T6 from STMicroelectronics is an 8-bit high-performance microcontroller featuring a Harvard-architecture STM8 core, 24 MHz max CPU frequency, 64 KB Flash, 2 KB data EEPROM, 10-bit ADC with 16 channels, two UARTs (one CAN-capable), SPI, I²C, and integrated CAN 2.0B controller - deployed in automotive body control modules, industrial sensor nodes, and smart HVAC actuators.

For engineers reviewing the STM8S207C8T6 datasheet, STM8S207C8T6 pinout, STM8S207C8T6 application, or STM8S207C8T6 equivalent, key selection criteria include CAN interface support, 24 MHz real-time execution capability, SWIM single-wire debug compatibility, low-power active-halt mode operation down to 1.5 µA, and LQFP48 package suitability for space-constrained PCB layouts.

Technical Context

The STM8S207C8T6 implements a 3-stage pipelined Harvard-architecture core with extended instruction set and nested interrupt controller supporting 32 interrupts and up to 37 external interrupt sources across 6 vectors. Its clock system integrates dual RC oscillators (16 MHz user-trimmable HSI and 128 kHz LSI), crystal oscillator input, and clock security monitor with automatic failover.

Peripheral integration includes a beCAN 2.0B controller operating at up to 1 Mbit/s, two full-duplex UARTs (UART1 supports LIN 2.1 master/slave with auto-resynchronization), 10 Mbit/s SPI, 400 kbit/s I²C, three 16-bit timers (TIM1 advanced control timer with dead-time insertion and complementary outputs; TIM2/TIM3 general-purpose), and an 8-bit basic timer with auto-wakeup capability.

Key Specifications

Pinout & Package

LQFP48 package (7 × 7 mm, 0.5 mm pitch) with 42 general-purpose I/Os, including 18 high-sink outputs capable of 20 mA sink per pin - optimized for driving LEDs, relays, and discrete transistors without external buffers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM8S207C8T6, the STM8S207K8T6 sacrifices CAN and I/O count for smaller footprint, while the STM8S208C8T6 extends communication capacity and memory headroom - both retain identical SWIM debug, clock architecture, and low-power behavior.

Availability

STM8S207C8T6 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and smart HVAC actuators requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across temperature ranges.

Supply support for STM8S207C8T6 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 analog devices for industrial, automotive, and consumer markets.

The STM8S series targets cost-sensitive, reliability-critical embedded applications demanding robustness, low power, and mature toolchain support - specifically engineered for automotive body electronics and industrial control where qualification and longevity are mandatory.

FAQ

Does STM8S207C8T6 support CAN FD?

No. The STM8S207C8T6 integrates only classic CAN 2.0B (ISO 11898-1), supporting up to 1 Mbit/s with standard and extended identifiers. It lacks CAN FD features such as flexible data-rate, larger payload (up to 64 bytes), and CRC enhancements. For CAN FD, consider ST's SPC5 or STM32H7 families.

What is the maximum operating temperature for STM8S207C8T6?

The STM8S207C8T6 is qualified for industrial temperature range: –40 °C to +85 °C ambient. Electrical characteristics including Flash write/erase endurance, ADC accuracy, and I/O drive strength are guaranteed across this full range per datasheet Section 10.3.

Can the internal 16 MHz RC oscillator be used for CAN timing?

No. The beCAN peripheral requires a clock source with ≤1% tolerance for reliable bit timing at 1 Mbit/s; the factory-trimmed HSI RC achieves ±1% only after user calibration. ST recommends using an external crystal (e.g., 8 MHz or 16 MHz) with PLL multiplication for CAN-conforming timing.

Is SWIM compatible with ST-LINK/V2 and third-party debuggers?

Yes. STM8S207C8T6's SWIM interface is fully supported by ST-LINK/V2 and ST-LINK/V2-1 debug adapters using STM8CubeProgrammer or Cosmic/STVD IDEs. Third-party tools like Olimex ARM-USB-TINY-H (with SWIM firmware) also provide verified SWIM connectivity.