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STMicroelectronics STM8S207M8T6BTR
- Part No.:
- STM8S207M8T6BTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
STM8S207M8T6BTR.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,116
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Product details
Overview
STM8S207M8T6BTR from STMicroelectronics is an 8-bit high-performance microcontroller featuring a Harvard-architecture STM8 core, 128 KB Flash, 2 KB data EEPROM, 6 KB RAM, 10-bit ADC (16 channels), two UARTs (one with LIN 2.1 support), SPI (10 Mbit/s), I²C (400 Kbit/s), and a CAN 2.0B interface. It operates up to 24 MHz with zero wait states ≤16 MHz and supports industrial temperature range (–40 to +85 °C) in LQFP80 package - used in automotive body control modules and industrial PLC I/O units.
For engineers reviewing the STM8S207M8T6BTR datasheet, STM8S207M8T6BTR pinout, STM8S207M8T6BTR application, or STM8S207M8T6BTR equivalent, key selection criteria include integrated CAN transceiver readiness, true data EEPROM endurance (300 kcycles), SWIM single-wire debug interface, 18 high-sink I/Os, and active-halt power mode (<1.5 µA @ 3.3 V).
Technical Context
The STM8S207M8T6BTR implements a 3-stage pipelined Harvard-architecture core delivering up to 20 MIPS at 24 MHz, with nested interrupt controller supporting 32 interrupts and 37 external interrupt sources across 6 vectors. Its clock system integrates user-trimmable 16 MHz RC, low-power 128 kHz RC, and crystal oscillator with clock security monitor.
Peripheral subsystems include an advanced 16-bit TIM1 timer with dead-time insertion and complementary outputs for motor control, dual 16-bit general-purpose timers (TIM2/TIM3), 8-bit basic timer (TIM4), window/independent watchdogs, and auto-wakeup timer - all individually 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; enables deterministic execution and efficient code density vs von Neumann alternatives. |
| Max Clock Frequency | 24 MHz with 0 wait states ≤16 MHz; ensures real-time response in time-critical control loops without memory latency penalty. |
| Flash / EEPROM / RAM | 128 KB Flash (20-year retention @ 55 °C after 10k cycles), 2 KB true data EEPROM (300 kcycle endurance), 6 KB RAM - supports firmware updates and persistent parameter storage. |
| ADC Resolution & Channels | 10-bit SAR ADC with up to 16 input channels and internal reference; suitable for precision analog sensing in motor feedback and battery monitoring. |
| CAN Interface | beCAN 2.0B compliant, 1 Mbit/s data rate; enables robust communication in automotive and industrial fieldbus networks. |
| I/O Count & Type | Up to 68 I/Os in LQFP80 package, including 18 high-sink outputs (up to 50 mA per pin); drives LEDs, relays, and logic-level peripherals directly. |
| Debug Interface | Single Wire Interface Module (SWIM); allows full in-circuit debugging and programming using only one pin - reduces PCB routing overhead. |
Pinout & Package
LQFP80 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial-grade construction rated for –40 to +85 °C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 2.95–5.5 V supply rails; separate analog/digital ground pins (VSSA/VSS) minimize noise coupling into ADC and clock circuits. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; supports external reset button or supervisor IC integration with programmable timeout. |
| SWIM | Single-wire debug interface | Enables programming, breakpoint setting, and register inspection via dedicated pin - no JTAG header required. |
| PA0–PA7, PB0–PB7, etc. | General-purpose I/O ports | 68 total I/Os with configurable pull-ups/downs, alternate functions (UART/SPI/I²C/CAN), and 18 high-sink capable pins (50 mA sink). |
| PD0/PD1 (CAN_RX/CAN_TX) | CAN physical layer interface | Dedicated differential CAN bus pins compatible with ISO 11898-2 transceivers; require external transceiver for bus connection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Data EEPROM | 2 KB true EEPROM with 300 kcycle endurance and 20-year data retention - eliminates need for external nonvolatile memory in calibration/data logging systems. |
| Low-Power Modes | Wait, active-halt (<1.5 µA @ 3.3 V), and halt modes with peripheral clocks gated individually - extends battery life in remote sensors and portable HMI. |
| Advanced Timer (TIM1) | 16-bit timer with 4 CAPCOM channels, 3 complementary outputs, and programmable dead-time insertion - enables 3-phase motor control without external gate drivers. |
| LIN 2.1 Compliance | UART3 supports master/slave modes, automatic resynchronization, and LIN break detection - simplifies implementation of automotive sub-networks (e.g., door modules). |
| Robust I/O Immunity | I/Os withstand ±5 kV HBM ESD and resist current injection up to 100 mA - improves reliability in noisy industrial environments with relay switching or cable harnesses. |
Applications
| Automotive Body Control Unit | Industrial PLC Digital I/O Module |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in 12 V vehicle platforms. IC Role / Device Role / Timing Role: Main MCU executing LIN slave protocol on UART3, managing PWM-driven motor drivers via TIM1, and reading switch inputs through 18 high-sink I/Os. Use Value: Integrated CAN and LIN reduce external transceiver count; 2 KB EEPROM stores seat/mirror position presets across ignition cycles. |
Use Scenario: DIN-rail mounted digital input/output expansion module for Modbus RTU-based factory automation systems. IC Role / Device Role / Timing Role: Protocol bridge between RS-485 Modbus interface and local 24 V DC I/O bank; uses UART1 for serial comms and TIM2 for precise 10 ms polling intervals. Use Value: 68 I/Os support up to 48 discrete inputs/outputs; industrial temp grade and ESD-hardened pins ensure uptime in electrically noisy plant floors. |
| Smart HVAC Thermostat Controller | Medical Infusion Pump Motor Driver |
Use Scenario: Battery-powered wall-mounted thermostat with ambient temperature/humidity sensing, display backlight control, and wireless gateway interface. IC Role / Device Role / Timing Role: System controller acquiring ADC readings from thermistor/hygrometer, driving LED segments via GPIO, and entering active-halt mode between 1-second sensor reads. Use Value: Ultra-low active-halt current (<1.5 µA) extends CR2032 battery life beyond 2 years; integrated 10-bit ADC avoids external signal conditioning. |
Use Scenario: Closed-loop stepper motor control in portable infusion pumps requiring precise flow rate regulation and safety-critical fault detection. IC Role / Device Role / Timing Role: Real-time motion controller generating microstepping waveforms via TIM1 complementary outputs and monitoring occlusion pressure via ADC channel 0. Use Value: Dead-time insertion prevents shoot-through in H-bridge drivers; independent watchdog ensures fail-safe shutdown on firmware hang. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8S208MBT6 | Same package and pinout; adds 2x comparators and enhanced beCAN with timestamping - no additional Flash/EEPROM/RAM. | Preferred where analog window comparison (e.g., overvoltage detection) or CAN message timestamping is required. | Select when comparator-based protection or CAN diagnostics demand extra analog/comms features - otherwise identical migration path. |
| STM32F042F6P6 | 32-bit ARM Cortex-M0 core, 16 KB Flash, 6 KB RAM, no integrated EEPROM; supports USB Device but lacks CAN. | Suitable for USB-HID human interface devices or cost-sensitive 32-bit upgrade paths where CAN is not needed. | Choose for higher compute throughput or USB connectivity; accept external EEPROM and absence of CAN if architecture permits. |
Compared with STM8S207M8T6BTR, STM8S208MBT6 offers incremental analog/comms enhancements within identical footprint and power profile, while STM32F042F6P6 trades CAN and EEPROM for 32-bit performance and USB - making it viable only when those features are expendable.
Availability
STM8S207M8T6BTR is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, smart HVAC controllers, and medical infusion pump motor drivers requiring stable component supply across extended product lifecycles.
Supply support for STM8S207M8T6BTR 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 series targets cost-sensitive, high-reliability 8-bit embedded control applications - emphasizing industrial robustness, long-term availability, and toolchain maturity for legacy and new designs alike.
FAQ
Does STM8S207M8T6BTR include a hardware CAN transceiver?
No. The device integrates a CAN controller (beCAN 2.0B) but requires an external CAN transceiver (e.g., TJA1042 or SN65HVD230) to drive the physical bus. PD0 and PD1 are dedicated controller pins for RX/TX signals, not line drivers.
What is the maximum operating temperature range for STM8S207M8T6BTR?
The STM8S207M8T6BTR is specified for industrial temperature range: –40 °C to +85 °C ambient. This is confirmed in Section 10.3 "Operating conditions" of the datasheet (DocID14733 Rev 13, p.56), with validated performance across voltage (2.95–5.5 V) and frequency (up to 24 MHz).
Can the internal 16 MHz RC oscillator be calibrated for improved accuracy?
Yes. The internal high-speed RC oscillator (HSI) is user-trimmable via the CLK_HSITRIMR register, allowing ±1% tuning resolution across process/voltage/temperature variations. Calibration is performed during production and can be adjusted in-field using SWIM debug interface.
Is SWIM debug supported on all package variants of STM8S207M8T6BTR?
Yes. SWIM (Single Wire Interface Module) is implemented identically across all STM8S207xx variants, including the LQFP80-packaged STM8S207M8T6BTR. Pin 13 (SWIM) is assigned in the LQFP80 pinout (Figure 3, p.23) and supports full flash programming, breakpoint, and register access without additional pins.
STM8S207M8T6BTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 80-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:
- 68
- 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 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8S207M8T6BTR FAQ
1.How can I place an order for STM8S207M8T6BTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8S207M8T6BTR 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 STM8S207M8T6BTR reliable?
The price and inventory of STM8S207M8T6BTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8S207M8T6BTR is usually 5 days.
3.What payment methods are accepted for STM8S207M8T6BTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8S207M8T6BTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8S207M8T6BTR?
STM8S207M8T6BTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8S207M8T6BTR 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 STM8S207M8T6BTR?
For technical support, including STM8S207M8T6BTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8S207M8T6BTR requirements.
6.How does Aetrix verify that STM8S207M8T6BTR is sourced from the original manufacturer or authorized distributors?
All STM8S207M8T6BTR 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 STM8S207M8T6BTR meets industry standards.
7.What is the process for return or replacement of STM8S207M8T6BTR?
All STM8S207M8T6BTR units undergo pre-shipment inspection (PSI). If there is an issue with STM8S207M8T6BTR, 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 STM8S207M8T6BTR part is unused and in its original packaging.
Return procedure for STM8S207M8T6BTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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