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STMicroelectronics STM8S208C8T6TR
- Part No.:
- STM8S208C8T6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM8S208C8T6TR.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:9,575
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Product details
Overview
STM8S208C8T6TR 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, 6 KB RAM, 10-bit ADC (16 channels), two UARTs (one with LIN 2.1 support), SPI, I²C, and a CAN 2.0B interface - deployed in industrial motor control and automotive body electronics.
For engineers reviewing the STM8S208C8T6TR datasheet, STM8S208C8T6TR pinout, STM8S208C8T6TR application, or STM8S208C8T6TR equivalent, key selection considerations include CAN bus integration, SWIM single-wire debug capability, 2.95–5.5 V wide supply range, low-power active-halt modes, and LQFP48 package compatibility with legacy STM8S footprint constraints.
Technical Context
The STM8S208C8T6TR implements a 3-stage pipelined Harvard architecture core with extended instruction set and up to 20 MIPS throughput at 24 MHz. It integrates a clock security system with monitor, nested interrupt controller (32 vectors, 37 external IRQs), and dual watchdog timers (independent + window).
Its peripheral suite includes an advanced 16-bit TIM1 timer with dead-time insertion and complementary outputs for motor gate driving, two 16-bit general-purpose timers (TIM2/TIM3), an 8-bit basic timer (TIM4), and analog subsystem comprising a 10-bit ADC with hardware-accelerated scan mode and internal reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | STM8 8-bit Harvard core with 3-stage pipeline and extended instruction set - enables deterministic real-time execution without cache misses. |
| Max CPU Frequency | 24 MHz with zero wait states ≤16 MHz - supports time-critical control loops without performance throttling. |
| Flash Memory | 64 KB program Flash with 20-year data retention at 55 °C after 10 kcycles - suitable for field-updatable firmware in long-lifecycle devices. |
| Data EEPROM | 2 KB true data EEPROM rated for 300 kcycles endurance - eliminates need for external nonvolatile storage in parameter logging applications. |
| ADC Resolution & Channels | 10-bit SAR ADC with up to 16 input channels and hardware-triggered scan - enables simultaneous sampling of multiple sensor inputs in motor feedback systems. |
| CAN Interface | beCAN 2.0B compliant controller supporting 1 Mbit/s baud rate - provides robust, fault-tolerant communication for automotive body networks. |
| Debug Interface | Single Wire Interface Module (SWIM) - allows full in-circuit debugging and programming using only one pin and no dedicated JTAG header. |
Pinout & Package
LQFP48 package (7 × 7 mm, 0.5 mm pitch), 48-pin quad flat lead frame with exposed thermal pad - optimized for compact industrial PCB layouts and thermal dissipation in enclosed enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD powers digital logic and I/O; VSS is common reference - requires local 100 nF decoupling per supply pair. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts external push-pull or open-drain assertion - enables reliable power-on and brown-out recovery. |
| SWIM | Single-wire debug interface | Bi-directional serial debug channel sharing no other function - permits firmware update and breakpoint debugging without dedicated debug header. |
| PA0–PA7, PB0–PB7, PC0–PC7, PD0–PD7, PE0–PE7 | General-purpose I/O ports | Up to 38 programmable I/Os with high sink capability (up to 20 mA per pin on select pins) - supports direct LED drive and relay coil interfacing. |
| TX1/RX1, TX3/RX3 | UART1 and UART3 transceivers | Full-duplex asynchronous serial interfaces; UART3 supports LIN 2.1 master/slave auto-resynchronization - enables diagnostic and sub-network communication. |
| SPI_MOSI/SPI_MISO/SPI_SCK/SPI_NSS | SPI interface signals | Master/slave configurable interface up to 10 Mbit/s - connects to sensors, displays, and external memory with minimal GPIO overhead. |
| SCL/SDA | I²C bidirectional bus lines | Standard-mode (100 kbit/s) and fast-mode (400 kbit/s) compatible - supports multi-drop topology with hardware address recognition. |
| CAN_RX/CAN_TX | CAN physical layer interface | Differential signal pair connected to external CAN transceiver - implements ISO 11898-1 compliant protocol stack with message filtering and FIFO buffering. |
Key Features
| Feature | Design Value |
|---|---|
| Internal RC oscillators | 16 MHz user-trimmable HSI and 128 kHz LSI - eliminate external crystal cost while maintaining timing accuracy for UART and CAN baud generation. |
| Low-power modes | Wait, active-halt, and halt modes with individual peripheral clock gating - reduces current draw to 1.3 µA in halt mode (VDD = 3.3 V), extending battery life in portable nodes. |
| Advanced timer (TIM1) | 16-bit timer with 4 CAPCOM channels, 3 complementary outputs, and programmable dead-time - enables precise 3-phase motor commutation without external logic. |
| 96-bit unique ID | Factory-programmed read-only identifier per device - supports secure firmware binding, device authentication, and traceability in production firmware provisioning. |
| I/O robustness | Immunity to current injection up to 100 mA - ensures reliable operation in electrically noisy environments such as automotive engine bays or industrial PLC cabinets. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Brushless DC motor control in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Real-time PWM generation, ADC-based current sensing, and CAN-based command reception. Use Value: TIM1's dead-time insertion prevents shoot-through in half-bridge drivers; integrated CAN enables OEM-level network integration without gateway translation. |
Use Scenario: Smart junction box managing door locks, lighting, and window lift functions. IC Role / Device Role / Timing Role: Central coordination node with LIN slave interfaces to actuators and CAN master to body domain controller. Use Value: Dual UARTs allow concurrent LIN diagnostics and CAN messaging; 2 KB EEPROM stores configuration profiles across vehicle variants. |
| Home Appliance Control | Energy Metering Interface |
Use Scenario: Washing machine main control board handling cycle sequencing and motor phase control. IC Role / Device Role / Timing Role: Main MCU executing state machines, reading front-panel inputs, and driving TRIACs via opto-isolators. Use Value: High sink I/Os directly drive indicator LEDs and relay coils; SWIM simplifies factory firmware updates during final test. |
Use Scenario: Communication module bridging metrology ICs (e.g., ADE7878) to PLC or RF mesh networks. IC Role / Device Role / Timing Role: Protocol translator between SPI-connected energy sensor and isolated RS-485 or NB-IoT modem. Use Value: 10-bit ADC monitors auxiliary voltages (e.g., backup battery); 64 KB Flash accommodates dual-application firmware images for field rollback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8S207C8T6TR | Same package and pinout, but lacks CAN interface and has reduced Flash (32 KB) | Applicable where CAN is unnecessary and firmware size <32 KB | Select when CAN bus is not required and BOM cost reduction is prioritized over future feature scalability. |
| STM8L152C6T6 | Ultra-low-power STM8L series; 32 KB Flash, 2 KB RAM, 1.65–3.6 V supply, no CAN | Targeted at battery-powered metering and sensor nodes requiring sub-µA sleep current | Choose for energy-constrained designs where CAN is omitted and extended battery life outweighs performance needs. |
Compared with STM8S207C8T6TR, this part adds CAN 2.0B and doubles Flash capacity; versus STM8L152C6T6, it trades ultra-low-power operation for higher performance, wider voltage range, and automotive-grade peripherals - making it optimal for wired industrial networks demanding both real-time response and bus interoperability.
Availability
STM8S208C8T6TR is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, home appliance control, and energy metering interface applications requiring stable component supply across multi-year production cycles.
Supply support for STM8S208C8T6TR 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, high-reliability embedded applications in industrial automation and automotive subsystems - emphasizing robust I/O, integrated analog, and CAN/LIN connectivity without sacrificing code density or debug simplicity.
FAQ
What is the maximum operating temperature range for STM8S208C8T6TR?
The STM8S208C8T6TR is specified for industrial temperature range: –40 °C to +85 °C ambient. Its thermal characteristics (θJA = 50 °C/W for LQFP48) and internal power-on reset ensure reliable startup and operation across this range without external thermal management under typical 30 mA load conditions.
Does STM8S208C8T6TR support in-system programming via SWIM?
Yes. The Single Wire Interface Module (SWIM) enables full in-system programming and debugging using only the SWIM pin and NRST, with no additional pins or voltage levels required. It supports flash erase/write, register inspection, and breakpoint execution - validated per ST's AN2630 and UM0470 documentation.
Can the internal 16 MHz RC oscillator be calibrated for UART baud rate accuracy?
Yes. The HSI oscillator can be trimmed in steps of ±0.5% via the CLK_HSITRIMR register, allowing fine-tuning to achieve ±2% UART baud error at 115.2 kbit/s - sufficient for standard asynchronous communication without external crystal, as confirmed in Section 10.3.4 of the datasheet.
Is there hardware support for CRC calculation in STM8S208C8T6TR?
No. The STM8S208C8T6TR does not include a dedicated hardware CRC peripheral. CRC-8 or CRC-16 must be implemented in firmware using the STM8's efficient 8-bit ALU and bit-manipulation instructions - reference examples are provided in ST's STM8S Standard Peripherals Library (SPL) v2.2.0, file stm8s_crc.c.
STM8S208C8T6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-LQFP
- Series:
- STM8S
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- STM8
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.95V ~ 5.5V
- Data Converters:
- A/D 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8S208C8T6TR FAQ
1.How can I place an order for STM8S208C8T6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8S208C8T6TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM8S208C8T6TR reliable?
The price and inventory of STM8S208C8T6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8S208C8T6TR is usually 5 days.
3.What payment methods are accepted for STM8S208C8T6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8S208C8T6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8S208C8T6TR?
STM8S208C8T6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8S208C8T6TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM8S208C8T6TR?
For technical support, including STM8S208C8T6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8S208C8T6TR requirements.
6.How does Aetrix verify that STM8S208C8T6TR is sourced from the original manufacturer or authorized distributors?
All STM8S208C8T6TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM8S208C8T6TR meets industry standards.
7.What is the process for return or replacement of STM8S208C8T6TR?
All STM8S208C8T6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM8S208C8T6TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM8S208C8T6TR part is unused and in its original packaging.
Return procedure for STM8S208C8T6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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