STMicroelectronics STM8S207C6T6TR

Overview

STM8S207C6T6TR from STMicroelectronics is an 8-bit high-performance microcontroller featuring a Harvard-architecture STM8 core, 24 MHz max CPU frequency, 32 KB Flash, 1 KB EEPROM, and integrated CAN 2.0B interface. It delivers 20 MIPS at 24 MHz, supports LIN master mode, and operates across industrial temperature range (–40 to +85 °C) with 2.95–5.5 V supply. Used in automotive body control modules and industrial sensor nodes requiring robust serial communication and low-power operation.

For engineers reviewing the STM8S207C6T6TR datasheet, STM8S207C6T6TR pinout, STM8S207C6T6TR application, or STM8S207C6T6TR equivalent, key selection criteria include CAN/LIN timing accuracy, 10-bit ADC linearity (±1 LSB INL), SWIM debug interface compatibility, and LQFP48 package thermal performance under 85 °C ambient.

Technical Context

The STM8S207C6T6TR implements a 3-stage pipelined Harvard architecture core with extended instruction set and nested interrupt controller supporting 32 interrupts and up to 37 external IRQs on 6 vectors. Its clock system integrates user-trimmable 16 MHz RC, 128 kHz low-power RC, and crystal oscillator with clock security monitor.

Peripheral integration includes one beCAN 2.0B controller (1 Mbit/s), two UARTs (one with LIN 2.1 compliance and auto-resync), SPI (10 Mbit/s), I²C (400 kbit/s), 10-bit ADC with 16 channels, and three 16-bit timers (TIM1 advanced, TIM2/TIM3 general-purpose) plus 8-bit basic timer and dual watchdogs.

Key Specifications

Pinout & Package

LQFP48 package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, with 44 general-purpose I/Os including 18 high-sink outputs capable of 20 mA sink per pin. Thermal pad exposed on underside for enhanced heat dissipation in continuous operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM8S207R6T6, the C6T6 offers smaller LQFP48 footprint and lower BOM cost for space-constrained CAN nodes; versus STM8L152C6T6, it provides essential automotive-grade CAN 2.0B and wider voltage tolerance at the expense of higher active current.

Availability

STM8S207C6T6TR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, home appliance motor controllers, and smart meter communication modules requiring stable component supply across extended product lifecycles.

Supply support for STM8S207C6T6TR 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 since 1987.

The STM8S Performance line targets cost-sensitive industrial and automotive applications requiring robust CAN/LIN connectivity, high code density, and long-term supply assurance-designed specifically for body electronics, motor control, and sensor fusion edge nodes.

FAQ

Does STM8S207C6T6TR support in-circuit debugging via SWIM without external hardware?

Yes. The device features a Single Wire Interface Module (SWIM) that enables full-speed debugging-including breakpoints, register inspection, and flash programming-using only one MCU pin and a standard ST-LINK/V2 debugger. No JTAG header or additional signals are required, reducing PCB footprint and test point count.

What is the maximum achievable CAN bit rate and how is timing configured?

The beCAN controller supports up to 1 Mbit/s bit rate with programmable timing registers (BTR1/BTR2). At 24 MHz fCPU, the prescaler yields 16 time quanta per bit segment, meeting ISO 11898-1 requirements for dominant/recessive timing margins. External 8 MHz crystal or internal 16 MHz RC can serve as CAN clock source.

How does the 10-bit ADC perform under varying supply conditions?

At VDDA = 5 V and RAIN < 10 kΩ, the ADC achieves ±1 LSB integral nonlinearity and 1/2 LSB differential nonlinearity. At 3.3 V, INL degrades to ±1.5 LSB due to reduced reference headroom; accuracy is maintained via internal VREFINT calibration and software offset correction routines documented in AN2606.

Is the LQFP48 package thermally adequate for continuous 24 MHz operation at 85 °C ambient?

Yes. With proper PCB layout (minimum 4-layer board, 2 oz copper, thermal vias under exposed pad), the LQFP48 package maintains junction temperature below 125 °C at 24 MHz, 5 V, and 85 °C ambient. Thermal resistance θJA is 42 °C/W per datasheet Table 54, verified by ST's thermal simulation models.