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STMicroelectronics STM8S207S8T6CTR
- Part No.:
- STM8S207S8T6CTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
STM8S207S8T6CTR.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,906
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Product details
Overview
STM8S207S8T6CTR 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 with 16 channels, two UARTs (one CAN-capable), SPI, I²C, and integrated CAN 2.0B controller - deployed in automotive body control modules and industrial motor drives.
For engineers reviewing the STM8S207S8T6CTR datasheet, STM8S207S8T6CTR pinout, STM8S207S8T6CTR application, or STM8S207S8T6CTR equivalent, key selection criteria include CAN interface integration, SWIM single-wire debug support, 68 I/O capability in LQFP80, low-power active-halt mode (1.5 µA typical), and 96-bit unique ID for secure firmware binding.
Technical Context
The STM8S207S8T6CTR 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 fail-safe oscillator monitoring and supports four low-power modes: wait, active-halt, halt, and ultra-low-power active-halt with peripheral clock gating.
Its communication subsystem includes a high-speed 1 Mbit/s beCAN 2.0B controller with message filtering and FIFO, dual UARTs (UART1 with LIN 2.1 master/slave support and automatic resynchronization), 10 Mbit/s SPI, and 400 kbit/s I²C - all independently clock-gatable via CLK_PCKENR registers.
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 execution without cache latency. |
| 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. |
| CPU Frequency | Up to 24 MHz with zero wait states ≤16 MHz - delivers high throughput for time-critical control loops in motor and power applications. |
| ADC Resolution | 10-bit SAR ADC with up to 16 input channels and internal reference - enables precise analog sensing across multiple sensors simultaneously. |
| CAN Interface | Integrated beCAN 2.0B controller supporting 1 Mbit/s baud rate and 32-message FIFO - eliminates need for external CAN transceiver logic in cost-sensitive nodes. |
| I/O Count | 68 I/O pins in LQFP80 package, including 18 high-sink outputs (20 mA) - supports direct LED driving and relay control without buffer stages. |
| Debug Interface | Single Wire Interface Module (SWIM) with full run-control and memory access - enables in-system programming and real-time debugging using minimal PCB footprint. |
Pinout & Package
LQFP80 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad - optimized for thermal dissipation in motor control and automotive ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 2.95–5.5 V supply rails with dedicated VCAP capacitor pin for internal voltage regulator stability. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts Schmitt-triggered signal for noise immunity in harsh environments. |
| SWIM | Single-wire debug interface | Bi-directional debug channel sharing one GPIO pin - enables full flash programming and breakpoint debugging with no additional pins. |
| PA0–PA7, PB0–PB7, PC0–PC7, PD0–PD7, PE0–PE7, PF0–PF7, PG0–PG7, PH0–PH7 | General-purpose I/O ports | 68 total I/Os with configurable pull-ups/downs, alternate functions, and high-sink capability (20 mA on 18 pins) for direct actuator drive. |
| TX1/RX1, TX3/RX3 | UART1 and UART3 serial interfaces | UART1 supports LIN master mode and automatic resynchronization; UART3 is CAN-capable with dedicated CAN_TX/CAN_RX pins. |
| CAN_TX, CAN_RX | CAN physical layer interface | Differential pair routed to external CAN transceiver - compliant with ISO 11898-2; supports dominant/recessive bit timing per CAN 2.0B spec. |
| CLK_OUT | Clock output signal | Configurable output of internal HSI (16 MHz), LSI (128 kHz), or system clock - used for synchronizing external peripherals or test equipment. |
Key Features
| Feature | Design Value |
|---|---|
| Advanced Control Timer (TIM1) | 16-bit timer with 4 CAPCOM channels, 3 complementary outputs, and programmable dead-time insertion - enables 3-phase motor gate drive with shoot-through protection. |
| beCAN 2.0B Controller | Integrated CAN protocol engine with 32-message FIFO, message filtering, and automatic retransmission - reduces MCU load and ensures deterministic bus arbitration. |
| Low-Power Modes | Active-halt mode draws only 1.5 µA (typ.) while retaining RAM and register state - ideal for battery-powered wake-on-event sensor nodes. |
| 96-bit Unique ID | Factory-programmed immutable identifier per device - enables secure firmware licensing, anti-cloning, and device-specific cryptographic key derivation. |
| Internal RC Oscillators | User-trimmable 16 MHz HSI (±2% accuracy) and 128 kHz LSI - eliminates external crystal cost and board space in non-timing-critical applications. |
Applications
| Automotive Body Control Unit | Industrial Motor Drive |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirrors, and lighting in 12 V vehicle platforms. IC Role / Device Role / Timing Role: Main system controller executing CAN-based command arbitration, PWM motor control, and LIN sub-network management. Use Value: Integrated CAN + LIN + high-sink I/O eliminates discrete level shifters and transceivers, reducing BOM count by ≥4 components per node. |
Use Scenario: Closed-loop speed/position control of BLDC motors in HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using TIM1's dead-time insertion and ADC-triggered sampling. Use Value: 10-bit ADC with hardware-triggered conversion and 16-channel mux enables simultaneous current/voltage/temperature sampling within <1 µs jitter. |
| Smart Power Outlet | Building Automation Sensor Node |
Use Scenario: DIN-rail mounted outlet with energy metering, relay control, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: System-on-chip managing AC zero-cross detection, relay timing, UART-to-RS485 translation, and EEPROM-based calibration storage. Use Value: 2 KB data EEPROM retains metering history and tariff tables across 100k+ power cycles without external backup power. |
Use Scenario: Battery-powered CO₂/temperature/humidity sensor node transmitting data via LoRaWAN gateway using UART bridging. IC Role / Device Role / Timing Role: Low-power coordinator handling sensor polling, data aggregation, and wake-on-interrupt UART transmission. Use Value: Active-halt mode with SWIM-debug retention allows firmware updates over-the-air while consuming <2 µA average current between 10-minute measurement intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8S207M8T6 | LQFP64 package (48 I/O), same core/peripherals but reduced pin count and Flash (64 KB) - no change in CAN or ADC specs. | Suitable for space-constrained designs where 68 I/O and LQFP80 thermal mass are unnecessary. | Select when PCB area is limited and full I/O count is not required; identical firmware compatibility simplifies migration. |
| STM8S208R8T6 | Adds true EEPROM write endurance of 300 kcycles (same as S207), but includes enhanced ADC calibration and higher-temp grade (−40 to 125 °C). | Required for under-hood automotive applications exceeding 85 °C ambient or demanding tighter ADC linearity. | Choose for extended temperature operation or when ADC offset/gain calibration traceability is mandated by ASIL-B functional safety workflows. |
Compared with STM8S207M8T6, the STM8S207S8T6CTR offers 20 more I/Os and superior thermal performance in LQFP80; versus STM8S208R8T6, it trades extended temperature rating for lower unit cost and identical feature set in standard industrial range.
Availability
STM8S207S8T6CTR is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart power outlets, and building automation sensor nodes requiring stable component supply across multi-year production cycles.
Supply support for STM8S207S8T6CTR 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 - emphasizing integrated peripherals, low-power operation, and robust debug infrastructure for rapid embedded development.
FAQ
Does STM8S207S8T6CTR support in-application programming (IAP) of Flash memory?
Yes. The device supports IAP via its built-in bootloader accessed through UART, SPI, or SWIM. Flash sectors can be erased and rewritten under firmware control using the FLASH_DUKR key sequence and dedicated ROP/WRP option byte configuration - enabling field firmware upgrades without external programmers.
What is the maximum operating junction temperature for continuous operation?
The STM8S207S8T6CTR is rated for industrial temperature range (−40 °C to +85 °C ambient). With its LQFP80 package and specified thermal resistance (θJA = 40 °C/W), the maximum junction temperature under full load at 85 °C ambient remains within safe silicon limits (≤125 °C), verified per ST's characterization data in DocID14733 Rev 13 Section 11.2.
Can the internal 16 MHz RC oscillator be calibrated for improved accuracy?
Yes. The HSI oscillator features user-trimmable calibration via the CLK_HSITRIMR register (8-bit trim value). Factory-trimmed default yields ±2% accuracy; fine-tuning against a reference clock can achieve ±0.5% across voltage and temperature - documented in Section 4.5 and Table 33 of the datasheet.
Is the CAN peripheral compatible with ISO 11898-2 physical layer requirements?
No - the beCAN module implements only the data link layer (CAN 2.0B protocol engine). An external ISO 11898-2 compliant transceiver (e.g., TJA1042, SN65HVD230) must be used on CAN_TX/CAN_RX pins to meet physical layer signaling, bus termination, and fault protection requirements.
STM8S207S8T6CTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 44-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:
- 34
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1.5K x 8
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.95V ~ 5.5V
- Data Converters:
- A/D 9x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8S207S8T6CTR FAQ
1.How can I place an order for STM8S207S8T6CTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8S207S8T6CTR 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 STM8S207S8T6CTR reliable?
The price and inventory of STM8S207S8T6CTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8S207S8T6CTR is usually 5 days.
3.What payment methods are accepted for STM8S207S8T6CTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8S207S8T6CTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8S207S8T6CTR?
STM8S207S8T6CTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8S207S8T6CTR 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 STM8S207S8T6CTR?
For technical support, including STM8S207S8T6CTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8S207S8T6CTR requirements.
6.How does Aetrix verify that STM8S207S8T6CTR is sourced from the original manufacturer or authorized distributors?
All STM8S207S8T6CTR 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 STM8S207S8T6CTR meets industry standards.
7.What is the process for return or replacement of STM8S207S8T6CTR?
All STM8S207S8T6CTR units undergo pre-shipment inspection (PSI). If there is an issue with STM8S207S8T6CTR, 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 STM8S207S8T6CTR part is unused and in its original packaging.
Return procedure for STM8S207S8T6CTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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