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STMicroelectronics STM8S207K8T3C
- Part No.:
- STM8S207K8T3C
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
STM8S207K8T3C.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,860
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Product details
Overview
STM8S207K8T3C 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, integrated CAN 2.0B controller, dual UARTs (one LIN-capable), SPI, I²C, and 10-bit ADC with 16 channels - deployed in automotive body control modules and industrial motor drive supervision.
For engineers reviewing the STM8S207K8T3C datasheet, STM8S207K8T3C pinout, STM8S207K8T3C application, or STM8S207K8T3C equivalent, key selection criteria include CAN interface timing compliance, SWIM debug accessibility, 128 kHz/16 MHz internal RC oscillator trimmability, and LQFP32 package thermal performance under 85 °C ambient operation.
Technical Context
The STM8S207K8T3C 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, low-power 128 kHz RC, and crystal/resonator oscillator with clock security monitor.
Peripheral integration includes beCAN 2.0B at 1 Mbit/s, two UARTs (UART1 with LIN master mode and automatic resynchronization), SPI up to 10 Mbit/s, I²C up to 400 Kbit/s, and a 10-bit ADC with programmable sampling time and analog watchdog - all accessible via configurable GPIO with high sink capability (18 pins rated for 20 mA sink).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | STM8 8-bit Harvard core with 3-stage pipeline and 20 MIPS @ 24 MHz - enables deterministic real-time control without wait states below 16 MHz. |
| Flash Memory | 64 KB program Flash with 20-year data retention at 55 °C after 10 kcycles - supports field firmware updates and robust code storage. |
| Data EEPROM | 2 KB true data EEPROM with 300 kcycle endurance - provides nonvolatile parameter storage without external serial EEPROM. |
| CAN Interface | High-speed beCAN 2.0B compliant at 1 Mbit/s with message filtering and FIFO buffering - meets automotive network timing and reliability requirements. |
| ADC Resolution | 10-bit SAR ADC with up to 16 input channels and programmable sampling time - delivers precise sensor signal acquisition for closed-loop control. |
| Operating Voltage | 2.95 V to 5.5 V supply range - allows direct interfacing with 3.3 V and 5 V logic domains and battery-powered operation down to 3 V. |
| Package | LQFP32 (7 × 7 mm) with 32-pin footprint - enables compact PCB layout while maintaining thermal dissipation up to 85 °C ambient. |
Pinout & Package
LQFP32 (7 × 7 mm, 0.8 mm pitch) package with exposed thermal pad; 32-pin quad flat configuration optimized for space-constrained industrial and automotive control applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; VCAP capacitor required for internal voltage regulator stability. |
| NRST | Active-low reset input | Asynchronous reset with built-in pull-up; supports external reset assertion and power-on reset with hysteresis. |
| SWIM | Single-wire interface module | Debug and programming interface using one dedicated pin - eliminates need for JTAG header and reduces BOM count. |
| PA0–PA7 | General-purpose I/O port A | 8-bit bidirectional port with alternate functions including TIM1/UART1/SPI/I²C - configurable as high-sink outputs (20 mA). |
| PB0–PB7 | General-purpose I/O port B | 8-bit bidirectional port supporting TIM2/UART3/CAN_TX/RX - includes remappable alternate functions for flexible peripheral routing. |
| PC0–PC7 | General-purpose I/O port C | 8-bit port with ADC channel inputs, beCAN RX/TX, and SWIM - enables mixed-signal I/O consolidation in minimal-pin-count designs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated beCAN 2.0B controller | Enables full automotive-grade CAN communication without external transceiver logic - reduces component count and board area. |
| User-trimmable 16 MHz RC oscillator | Allows ±1% frequency calibration across voltage/temperature - eliminates crystal cost while meeting UART baud rate accuracy (±2%) requirements. |
| Single-wire debug (SWIM) | Provides full in-circuit programming and real-time debugging over one pin - simplifies production test and field firmware updates. |
| 10-bit ADC with analog watchdog | Supports 16-channel scanning with automatic threshold violation detection - enables autonomous sensor monitoring during low-power modes. |
| Three low-power modes (Wait, Active-Halt, Halt) | Reduces current consumption to 3.2 µA in Halt mode with RTC active - extends battery life in always-on supervisory applications. |
Applications
| Automotive Body Control Unit (BCU) | Industrial Motor Drive Supervisor |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, lighting, and mirror adjustment in 12 V vehicle systems. IC Role / Device Role / Timing Role: Main MCU executing CAN-based command arbitration, LIN slave communication with actuators, and ADC-based position feedback sampling. Use Value: Integrated beCAN and LIN-compliant UART eliminate external protocol translators; 64 KB Flash accommodates multi-feature firmware with OTA update headroom. |
Use Scenario: Monitoring temperature, current, and fault status in 3-phase inverter drives for HVAC and pump systems. IC Role / Device Role / Timing Role: Real-time supervisor managing gate driver enable/disable, ADC-triggered overcurrent shutdown, and CAN-based status reporting to PLC. Use Value: 10-bit ADC with analog watchdog detects fast overcurrent events; advanced timer (TIM1) synchronizes PWM dead-time insertion with hardware precision. |
| Smart Power Outlet Controller | Home Appliance Main Control Board |
Use Scenario: Wi-Fi-connected outlet with energy metering, load switching, and thermal derating protection. IC Role / Device Role / Timing Role: System manager handling relay control, isolated current sensing ADC conversion, and UART-based communication with wireless SoC. Use Value: 2 KB EEPROM stores lifetime energy counters and calibration offsets; high-sink I/Os directly drive opto-triac drivers without buffer transistors. |
Use Scenario: Washing machine main board coordinating motor phase control, water level sensing, heater management, and user interface. IC Role / Device Role / Timing Role: Primary controller running state machine, reading potentiometer/NTC inputs via ADC, generating PWM for BLDC motor, and driving LED display. Use Value: Dual UARTs support simultaneous communication with display module and inverter driver; 24 MHz CPU ensures responsive UI refresh and real-time motor commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8S207C8T6 | LQFP48 package (48 pins), +16 KB Flash (64 → 80 KB), same peripherals and clock system | Requires larger PCB footprint; enables additional GPIO, ADC channels, or UARTs for expanded I/O needs | Select when >32 GPIOs or extra timers/communication interfaces are required beyond LQFP32 pin count limits. |
| STM8AF5288TAY | Automotive-grade (AEC-Q100 Grade 2), same LQFP32 package, identical peripheral set but qualified for -40 to 125 °C | Validated for under-hood automotive use; includes enhanced ESD/EMC robustness and extended temperature qualification | Select for automotive applications requiring full AEC-Q100 compliance and extended temperature operation beyond industrial grade. |
Compared with STM8S207K8T3C, the STM8S207C8T6 offers higher pin count and memory for scalable designs, while the STM8AF5288TAY provides automotive qualification and extended temperature range - both retain identical instruction set and SWIM debug compatibility.
Availability
STM8S207K8T3C is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor supervisors, smart power outlets, and home appliance control boards requiring stable component supply across long-life production cycles.
Supply support for STM8S207K8T3C 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 ICs, sensors, and analog devices for industrial, automotive, and consumer markets.
The STM8S series targets cost-sensitive, high-reliability 8-bit control applications with emphasis on CAN/LIN connectivity, ultra-low-power operation, and single-wire debug - bridging legacy 8051 designs and modern embedded requirements.
FAQ
Does STM8S207K8T3C support in-system programming via SWIM?
Yes. The device features a Single Wire Interface Module (SWIM) that enables full in-circuit programming and debugging using only one dedicated pin (SWIM), without requiring a dedicated debug header or additional signals. It supports flash erase/write, register read/write, and real-time variable inspection during execution.
What is the maximum operating temperature range for STM8S207K8T3C?
The STM8S207K8T3C is specified for industrial temperature range: –40 °C to +85 °C ambient. Electrical characteristics including Flash write endurance, ADC accuracy, and CAN timing compliance are guaranteed across this full range per datasheet Section 10.3.
Can the internal 16 MHz RC oscillator meet UART baud rate accuracy requirements?
Yes - the internal 16 MHz RC oscillator is user-trimmable in steps of ±0.5%, enabling calibration to within ±1% frequency accuracy. This satisfies typical UART baud rate tolerance requirements (±2% for 9600–115200 bps) without external crystal, as confirmed in Section 10.3.4 of the datasheet.
Is there hardware support for CAN message filtering and FIFO buffering?
Yes. The integrated beCAN 2.0B controller includes 16 message objects with programmable identifier masks, acceptance filtering, and a 3-level FIFO buffer for received messages. This offloads CPU overhead during high-traffic CAN bus operation and ensures deterministic message handling in automotive networks.
STM8S207K8T3C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 32-LQFP
- Series:
- STM8S
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- STM8
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 25
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.95V ~ 5.5V
- Data Converters:
- A/D 7x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8S207K8T3C FAQ
1.How can I place an order for STM8S207K8T3C through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8S207K8T3C 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 STM8S207K8T3C reliable?
The price and inventory of STM8S207K8T3C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8S207K8T3C is usually 5 days.
3.What payment methods are accepted for STM8S207K8T3C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8S207K8T3C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8S207K8T3C?
STM8S207K8T3C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8S207K8T3C 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 STM8S207K8T3C?
For technical support, including STM8S207K8T3C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8S207K8T3C requirements.
6.How does Aetrix verify that STM8S207K8T3C is sourced from the original manufacturer or authorized distributors?
All STM8S207K8T3C 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 STM8S207K8T3C meets industry standards.
7.What is the process for return or replacement of STM8S207K8T3C?
All STM8S207K8T3C units undergo pre-shipment inspection (PSI). If there is an issue with STM8S207K8T3C, 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 STM8S207K8T3C part is unused and in its original packaging.
Return procedure for STM8S207K8T3C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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