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STMicroelectronics STM8S207K8T3CTR
- Part No.:
- STM8S207K8T3CTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
STM8S207K8T3CTR.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,419
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Product details
Overview
STM8S207K8T3CTR 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 advanced timer peripherals including TIM1 with dead-time insertion. It targets automotive body electronics, industrial control panels, and smart sensor nodes requiring CAN 2.0B communication and robust I/O.
For engineers reviewing the STM8S207K8T3CTR datasheet, STM8S207K8T3CTR pinout, STM8S207K8T3CTR application, or STM8S207K8T3CTR equivalent, key selection criteria include CAN interface support, 64-pin LQFP package compatibility, 24 MHz timing headroom, integrated EEPROM endurance (300 kcycles), and SWIM single-wire debug capability for space-constrained embedded designs.
Technical Context
The STM8S207K8T3CTR 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 across 6 vectors. Its clock system integrates user-trimmable 16 MHz RC, low-power 128 kHz RC, and crystal oscillator with clock security monitoring.
Peripheral integration includes beCAN 2.0B controller operating at 1 Mbit/s, dual UARTs with LIN 2.1 compliance and automatic resynchronization, 10 Mbit/s SPI, 400 kbit/s I²C, and three 16-bit timers (TIM1 advanced, TIM2/TIM3 general-purpose) plus 8-bit basic timer and dual watchdogs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | STM8 8-bit Harvard core with 3-stage pipeline; enables deterministic 20 MIPS @ 24 MHz without wait states below 16 MHz. |
| Flash Memory | 64 KB program Flash with 20-year data retention at 55 °C after 10 kcycles; supports in-application programming and option byte protection. |
| Data EEPROM | 2 KB true data EEPROM with 300 kcycle endurance; provides nonvolatile parameter storage without external serial EEPROM. |
| CPU Frequency | Up to 24 MHz fCPU; operates at full speed across 2.95–5.5 V supply range with zero wait states ≤16 MHz. |
| ADC Resolution | 10-bit SAR ADC with up to 16 input channels and ±1 LSB INL/DNL; supports hardware-triggered conversions and scan mode. |
| CAN Interface | beCAN 2.0B compliant controller with 1 Mbit/s operation; includes 16 message objects, programmable bit timing, and automatic retransmission. |
| I/O Count | Up to 54 I/Os in LQFP64 package including 18 high-sink outputs (20 mA); immune to current injection per IEC 61000-4-2 Level 4. |
| Debug Interface | Single Wire Interface Module (SWIM) with 4-pin minimal footprint; enables full-speed debugging, flash programming, and memory inspection. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature grade (–40 to +85 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD for digital core/I/O, VSS as reference; requires local 100 nF decoupling per pair. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1.65–5.5 V logic; supports external reset supervisor integration. |
| PA0–PA7 | General-purpose I/O port A | 8-bit bidirectional port with configurable pull-ups, alternate functions including TIM1/UART1/SPI/I²C pins. |
| PB0–PB7 | General-purpose I/O port B | 8-bit port supporting TIM2/TIM3/ADC/UART3 functions; PB5–PB7 serve as SWIM debug interface (SWIM, RST, CLK). |
| PC0–PC7 | General-purpose I/O port C | 8-bit port with CAN_TX/CAN_RX on PC3/PC4; supports beCAN bus physical layer interface without transceiver. |
| PD0–PD7 | General-purpose I/O port D | 8-bit port with TIM1 complementary outputs (CH1/CH2/CH3), enabling 3-phase motor gate drive with dead-time control. |
| PE0–PE7 | General-purpose I/O port E | 8-bit port with ADC channel inputs (IN0–IN7); PE0–PE3 also serve as UART1 TX/RX/CLK/CTS for synchronous operation. |
| PF0–PF3 | General-purpose I/O port F | 4-bit port supporting TIM4, beCAN standby, and optional boot configuration via PF0/PF1 during reset. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated beCAN 2.0B controller | Enables direct connection to automotive CAN buses without external protocol IC; supports error confinement and loopback self-test. |
| User-trimmable 16 MHz RC oscillator | Allows ±1% frequency calibration via option bytes; eliminates crystal cost while maintaining timing accuracy for UART/CAN baud generation. |
| Advanced TIM1 with dead-time insertion | Provides hardware-controlled delay between complementary PWM outputs; critical for preventing shoot-through in half-bridge motor drivers. |
| True data EEPROM (2 KB) | Retains calibration data, device IDs, or field-updated parameters across 300,000 write cycles-no software wear-leveling required. |
| SWIM single-wire debug interface | Reduces debug footprint to one pin (PB5); supports full flash erase/program, register read/write, and real-time variable monitoring. |
| High sink I/O capability (20 mA) | Drives LEDs, relays, or optocouplers directly from 18 pins; reduces BOM count by eliminating external driver transistors. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: Main MCU executing CAN message handling, PWM motor control, and analog sensor acquisition (e.g., potentiometer feedback). Use Value: Integrated beCAN and 16-channel ADC eliminate external transceivers and signal conditioners; 2 KB EEPROM stores vehicle-specific configuration. |
Use Scenario: Modular I/O slave node in distributed control systems, acquiring discrete inputs and driving solenoids/valves via relay outputs. IC Role / Device Role / Timing Role: Real-time I/O processor with deterministic 24 MHz response; UART3 handles Modbus RTU master polling over RS-485. Use Value: 54 robust I/Os with high-sink capability drive 24 V DC loads directly; SWIM enables field firmware updates without JTAG header. |
| Smart HVAC Sensor Node | Home Appliance Motor Controller |
Use Scenario: Wireless-connected environmental sensor unit measuring temperature, humidity, and CO₂ using analog and digital sensors. IC Role / Device Role / Timing Role: Signal acquisition hub aggregating ADC readings and I²C sensor data; UART1 interfaces with ESP32 Wi-Fi module. Use Value: 10-bit ADC with hardware averaging reduces noise in thermistor measurements; internal 128 kHz RC powers low-power wake-up timer. |
Use Scenario: Brushless DC motor commutation in washing machine drum drives, requiring precise 3-phase PWM timing and fault detection. IC Role / Device Role / Timing Role: Dedicated motor control MCU generating six complementary PWM signals via TIM1 with synchronized dead-time. Use Value: Hardware dead-time insertion prevents MOSFET shoot-through; beCAN reports motor status to main controller for diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8S207M8T6CTR | Same core/peripherals but in LQFP80 package (68 I/Os); 128 KB Flash instead of 64 KB. | Requires larger PCB area and more routing layers; suited for designs needing >54 I/Os or larger firmware image. | Select when additional Flash or I/O count justifies larger footprint and higher cost. |
| STM8AF5288TAY | Automotive-grade (AEC-Q100 Grade 2) variant with identical peripheral set and 64 KB Flash in LQFP64. | Qualified for under-hood use (–40 to +125 °C); includes enhanced ESD/EMC robustness and extended qualification testing. | Choose for automotive safety-critical modules where industrial-grade temperature range is insufficient. |
Compared with STM8S207K8T3CTR, the STM8S207M8T6CTR offers expanded memory and I/O at the cost of board space, while the STM8AF5288TAY delivers automotive qualification without altering firmware compatibility-making both viable for different lifecycle or environmental requirements.
Availability
STM8S207K8T3CTR is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC expansion, smart HVAC sensor nodes, and home appliance motor controllers requiring stable component supply and long-term production continuity.
Supply support for STM8S207K8T3CTR 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM8S series is ST's mainstream 8-bit MCU product line targeting cost-sensitive, resource-constrained embedded applications requiring high reliability, integrated peripherals, and mature toolchain support-including STVD, Cosmic C compiler, and STM8CubeMX.
FAQ
What is the maximum operating frequency and voltage range for STM8S207K8T3CTR?
The STM8S207K8T3CTR operates at up to 24 MHz across a supply voltage range of 2.95 V to 5.5 V. At 16 MHz and below, it achieves zero wait-state execution; above 16 MHz, timing margins require verification against VDD per Figure 12 in the datasheet. The device maintains full functionality across its specified industrial temperature range (–40 to +85 °C).
Does STM8S207K8T3CTR support CAN FD or only classical CAN 2.0B?
The STM8S207K8T3CTR integrates the beCAN 2.0B controller, supporting only Classical CAN (ISO 11898-1:2003) at up to 1 Mbit/s. It does not implement CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD, ST recommends the SPC5 or STM32G0/G4 families.
How is debug and programming performed on this MCU?
Debug and programming use the Single Wire Interface Module (SWIM) via PB5 (SWIM pin), requiring only one dedicated pin plus NRST and VDD/VSS. ST-LINK/V2 or compatible debuggers connect through SWIM to support full-speed debugging, flash erase/program, and memory inspection-no JTAG header or additional pins needed.
What is the endurance and retention specification for the integrated EEPROM?
The integrated 2 KB data EEPROM guarantees 300,000 write/erase cycles and 20 years of data retention at 55 °C. Retention degrades logarithmically with temperature; at 85 °C, retention is rated at 10 years. Endurance is verified per JEDEC JESD22-A117 and applies to individual EEPROM words, not block erasure.
STM8S207K8T3CTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 32-LQFP
- Series:
- STM8S
- Packaging:
- Tape & Reel (TR)
- 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:
STM8S207K8T3CTR FAQ
1.How can I place an order for STM8S207K8T3CTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8S207K8T3CTR 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 STM8S207K8T3CTR reliable?
The price and inventory of STM8S207K8T3CTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8S207K8T3CTR is usually 5 days.
3.What payment methods are accepted for STM8S207K8T3CTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8S207K8T3CTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8S207K8T3CTR?
STM8S207K8T3CTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8S207K8T3CTR 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 STM8S207K8T3CTR?
For technical support, including STM8S207K8T3CTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8S207K8T3CTR requirements.
6.How does Aetrix verify that STM8S207K8T3CTR is sourced from the original manufacturer or authorized distributors?
All STM8S207K8T3CTR 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 STM8S207K8T3CTR meets industry standards.
7.What is the process for return or replacement of STM8S207K8T3CTR?
All STM8S207K8T3CTR units undergo pre-shipment inspection (PSI). If there is an issue with STM8S207K8T3CTR, 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 STM8S207K8T3CTR part is unused and in its original packaging.
Return procedure for STM8S207K8T3CTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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