STMicroelectronics STM8S207C8T3

Overview

STM8S207C8T3 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, dual UARTs (one CAN-capable), SPI, I²C, and advanced timers including TIM1 with dead-time insertion. It serves as a main system controller in automotive body electronics and industrial motor control systems requiring robust CAN communication and mixed-signal integration.

For engineers reviewing the STM8S207C8T3 datasheet, STM8S207C8T3 pinout, STM8S207C8T3 application, or STM8S207C8T3 equivalent, key selection criteria include its integrated beCAN 2.0B interface, SWIM single-wire debug support, 68 I/O capability in LQFP80, low-power operation down to 2.95 V, and 96-bit unique ID for secure firmware binding.

Technical Context

The STM8S207C8T3 implements an enhanced STM8 core with 3-stage pipeline and extended instruction set, delivering up to 20 MIPS at 24 MHz with zero wait states below 16 MHz. Its clock system integrates user-trimmable 16 MHz RC, low-power 128 kHz RC, and crystal oscillator support with clock security monitoring.

Interrupt handling uses a nested controller supporting 32 vectors and up to 37 external interrupts across six priority levels. Peripheral subsystems include two 16-bit general-purpose timers (TIM2/TIM3), one advanced-control timer (TIM1) with complementary outputs and dead-time control, and an 8-bit basic timer (TIM4) with auto-wakeup capability.

Key Specifications

Pinout & Package

LQFP80 package (14 × 14 mm, 0.5 mm pitch) with 68 user-configurable I/Os, including 18 high-sink outputs rated for 20 mA sink per pin and robust immunity against current injection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM8S207C8T3, STM8S208R8T3 offers double Flash without CAN overhead, while STM32F042F6P6 trades CAN integration for USB and higher compute throughput - both require PCB layout changes and toolchain requalification.

Availability

STM8S207C8T3 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, smart energy metering, and home appliance control requiring stable component supply and long-term industrial lifecycle support.

Supply support for STM8S207C8T3 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 components for industrial, automotive, and consumer markets.

The STM8S series targets cost-sensitive, high-reliability embedded applications demanding robustness, low power, and integrated peripherals - especially where CAN, LIN, or mixed-signal control is central to system architecture.

FAQ

Does STM8S207C8T3 support in-system programming via SWIM?

Yes. The STM8S207C8T3 supports full in-system programming and debugging through its single-wire SWIM interface, requiring only one dedicated pin (SWIM) and ground. No external bootloader or UART-based ISP is needed - firmware updates can be performed live in the target application without removing the chip.

What is the maximum operating temperature range for STM8S207C8T3?

The STM8S207C8T3 is specified for industrial temperature operation from –40 °C to +85 °C. All electrical characteristics, including Flash write endurance, ADC accuracy, and CAN timing, are guaranteed across this full range per STMicroelectronics' production data (DocID14733 Rev 13).

Can TIM1 generate complementary PWM with programmable dead-time on STM8S207C8T3?

Yes. TIM1 is a 16-bit advanced control timer with four CAPCOM channels, three complementary output pairs, and hardware-configurable dead-time insertion (1–1023 ns resolution). This enables safe driving of half-bridge and three-phase inverter topologies without software intervention.

Is the 2 KB data EEPROM truly wear-leveled and accessible during program execution?

Yes. The 2 KB data EEPROM is implemented as true EEPROM (not Flash-emulated), supporting concurrent read-while-write operation and guaranteed 300,000 write/erase cycles. It is mapped into the memory space and accessible via standard MOV instruction without CPU stall.