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STMicroelectronics STM8S207RBT6C
- Part No.:
- STM8S207RBT6C
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM8S207RBT6C.pdf
- Description:
- IC MCU 8BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:536
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Product details
Overview
STM8S207RBT6C from STMicroelectronics is an 8-bit high-performance microcontroller featuring a Harvard-architecture STM8 core, 24 MHz max CPU frequency, 128 KB Flash, 2 KB data EEPROM, 10-bit ADC with 16 channels, dual UARTs (including LIN-compliant UART3), SPI, I²C, and CAN 2.0B interface - deployed in automotive body control modules, industrial sensor nodes, and smart HVAC controllers.
For engineers reviewing the STM8S207RBT6C datasheet, STM8S207RBT6C pinout, STM8S207RBT6C application, or STM8S207RBT6C equivalent, key selection considerations include CAN bus integration, SWIM single-wire debug support, 68 I/O capability in LQFP80, low-power active-halt mode (0.35 µA typical), and 96-bit unique ID for firmware binding.
Technical Context
The STM8S207RBT6C 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 monitor.
Peripheral subsystems include an advanced 16-bit TIM1 timer with dead-time insertion and complementary outputs for motor control, two general-purpose 16-bit timers (TIM2/TIM3), an 8-bit basic timer (TIM4), beCAN 2.0B controller operating at 1 Mbit/s, and dual UARTs with LIN master/slave and automatic resynchronization capabilities.
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 wait states below 16 MHz. |
| Flash Memory | 128 KB program Flash with 20-year data retention at 55 °C after 10 kcycles - supports field firmware updates and long-life embedded deployments. |
| Data EEPROM | 2 KB true data EEPROM rated for 300 kcycles endurance - stores calibration data, device configuration, and runtime parameters without external NV memory. |
| ADC Resolution | 10-bit SAR ADC with up to 16 input channels and internal reference - delivers precise analog sensing for temperature, voltage, and current monitoring. |
| CAN Interface | beCAN 2.0B compliant controller supporting 1 Mbit/s bit rate - enables robust vehicle network communication with message filtering and FIFO buffering. |
| Supply Voltage | 2.95 V to 5.5 V operation - allows direct interfacing with 3.3 V and 5 V logic domains and battery-powered systems down to 3 V. |
| Low-Power Modes | Wait, active-halt (0.35 µA typ), and halt modes with individual peripheral clock gating - extends battery life in always-on sensor and telemetry applications. |
Pinout & Package
LQFP80 (14 × 14 mm, 0.5 mm pitch) package with 68 I/O pins including 18 high-sink outputs, SWIM debug interface on pin 12, NRST on pin 1, VCAP capacitor pad on pin 7, and dedicated CAN TX/RX on pins 49/50.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NRST) | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1–4 µs pulse width for reliable system initialization. |
| 12 (SWIM) | Single Wire Interface Module | Bi-directional debug port for programming and real-time debugging using one GPIO pin - eliminates need for JTAG header space. |
| 49 (TXD_CAN) | CAN transmitter output | Push-pull CMOS output driving CAN transceiver differential pair - requires external CAN driver (e.g., TJA1042) for physical layer compliance. |
| 50 (RXD_CAN) | CAN receiver input | High-impedance TTL-level input accepting differential CAN bus signal via external transceiver - immune to ±8 kV ESD per IEC 61000-4-2. |
| 7 (VCAP) | Voltage regulator decoupling | Connects 1 µF ceramic capacitor to stabilize internal 1.8 V regulator - mandatory for stable core operation at all supply voltages. |
Key Features
| Feature | Design Value |
|---|---|
| SWIM Debug Interface | Single-pin in-circuit programming and real-time debugging - reduces PCB footprint and BOM cost vs. multi-pin debug headers. |
| beCAN 2.0B Controller | Integrated CAN protocol engine with 16 message objects, programmable bit timing, and automatic retransmission - eliminates external CAN controller IC. |
| 96-bit Unique ID | Factory-programmed read-only serial number per die - enables secure device authentication, license binding, and anti-cloning in production firmware. |
| High-Sink I/O Pins | 18 pins capable of sinking 20 mA each - directly drives LEDs, relays, and small solenoids without external drivers in industrial I/O modules. |
| Flexible Clock System | Four clock sources (HSE, HSI, LSE, LSI) with automatic failover and trimmable 16 MHz RC - ensures timing resilience across voltage/temp variations. |
Applications
| Automotive Body Control Unit | Industrial Motor Drive Interface |
|---|---|
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 coordinating LIN slave nodes, reading switch inputs, driving power MOSFETs via PWM, and communicating over CAN bus with gateway ECU. Use Value: Integrated CAN + LIN + high-sink I/O eliminates discrete level shifters and bus transceivers, reducing bill-of-materials by 3–5 components per module. |
Use Scenario: Compact BLDC motor controller for HVAC blowers, conveyor belts, and pump actuators in factory automation systems. IC Role / Device Role / Timing Role: Real-time commutation sequencer using TIM1's complementary PWM outputs with dead-time insertion, ADC feedback sampling, and fault protection handling. Use Value: Hardware-accelerated motor control logic offloads timing-critical tasks from software, enabling 20 kHz PWM switching with <1 µs jitter. |
| Smart Energy Meter Interface | Building Automation Sensor Node |
Use Scenario: Data concentrator collecting pulse counts, voltage/current readings, and tariff data from sub-meters via RS-485 and optical port. IC Role / Device Role / Timing Role: Protocol translator bridging I²C-connected metrology ICs, UART-driven RS-485 transceivers, and CAN-based upstream communication to building management system. Use Value: Dual UARTs with LIN sync capability allow simultaneous optical head polling and RS-485 line arbitration - eliminating need for second MCU or FPGA. |
Use Scenario: Battery-powered wireless node monitoring CO₂, temperature, humidity, and occupancy in commercial HVAC zones. IC Role / Device Role / Timing Role: Low-power sensor aggregator entering active-halt mode between 30-second ADC conversions, waking via auto-wakeup timer or external interrupt. Use Value: Sub-µA deep-sleep current extends CR2032 battery life beyond 5 years while maintaining accurate timekeeping via internal LSI oscillator. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit MCU with CAN applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8S208RBT6 | Same package and pinout; adds 2x additional UARTs and enhanced DMA controller - no change to Flash/EEPROM size or CAN peripheral. | Preferred for multi-protocol gateways requiring 3+ serial interfaces (e.g., Modbus RTU + CAN + BLE UART bridge). | Select when extra UARTs or DMA bandwidth are required; otherwise identical migration path with no PCB or firmware changes. |
| NXP S9KEAZ128AMLH | ARM Cortex-M0+ core, 48 MHz, 128 KB Flash, 16 KB RAM, CAN 2.0B - lacks integrated EEPROM and SWIM debug; uses SWD instead. | Better suited for applications needing higher compute throughput or RTOS support; requires external EEPROM for parameter storage. | Choose for future-proofing toward ARM ecosystem or when >20 MIPS processing is needed; accept added complexity in debug infrastructure and non-volatile storage design. |
Compared with STM8S207RBT6C, STM8S208RBT6 offers expanded serial connectivity without altering CAN functionality or power profile, while S9KEAZ128AMLH trades legacy 8-bit simplicity for ARM performance and memory scalability at the cost of debug interface compatibility and EEPROM integration.
Availability
STM8S207RBT6C is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and smart energy metering requiring stable component supply across extended temperature ranges (–40 °C to +85 °C) and long product lifecycles.
Supply support for STM8S207RBT6C 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.
The STM8S series targets cost-sensitive, high-reliability 8-bit applications where CAN, LIN, and ultra-low-power operation are essential - optimized for body electronics, appliance control, and industrial I/O modules.
FAQ
Does STM8S207RBT6C support in-application programming (IAP) of Flash memory?
Yes. The device supports IAP via its built-in bootloader accessed through UART, SPI, or SWIM interface. Flash sectors can be erased and rewritten under firmware control using standard ST-provided library functions, enabling field firmware upgrades without external programmers.
What is the maximum allowed VCAP capacitor value and tolerance for stable operation?
The VCAP pin requires a 1.0 µF ±20% X7R ceramic capacitor placed within 5 mm of the pin. Exceeding 2.2 µF may cause startup instability; values below 0.82 µF risk core voltage droop during high-current transitions, leading to unexpected resets.
Can the internal 16 MHz RC oscillator be calibrated for improved accuracy?
Yes. The HSI oscillator trim value is stored in option bytes and adjustable in 16 steps (±1.5%) via the CLK_HSITRIMR register. Factory calibration achieves ±1% accuracy at 25 °C; user recalibration against external reference improves stability across temperature.
Is the CAN peripheral compatible with ISO 11898-2 physical layer requirements?
No - the STM8S207RBT6C contains only the CAN protocol controller (CLSS). Compliance with ISO 11898-2 requires an external CAN transceiver (e.g., TJA1042 or SN65HVD230) to handle differential signaling, bus arbitration, and fault protection.
STM8S207RBT6C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM8S
- Packaging:
- Tray
- 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:
- 52
- Program Memory Size:
- 128KB (128K 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:
STM8S207RBT6C FAQ
1.How can I place an order for STM8S207RBT6C through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8S207RBT6C 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 STM8S207RBT6C reliable?
The price and inventory of STM8S207RBT6C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8S207RBT6C is usually 5 days.
3.What payment methods are accepted for STM8S207RBT6C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8S207RBT6C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8S207RBT6C?
STM8S207RBT6C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8S207RBT6C 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 STM8S207RBT6C?
For technical support, including STM8S207RBT6C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8S207RBT6C requirements.
6.How does Aetrix verify that STM8S207RBT6C is sourced from the original manufacturer or authorized distributors?
All STM8S207RBT6C 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 STM8S207RBT6C meets industry standards.
7.What is the process for return or replacement of STM8S207RBT6C?
All STM8S207RBT6C units undergo pre-shipment inspection (PSI). If there is an issue with STM8S207RBT6C, 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 STM8S207RBT6C part is unused and in its original packaging.
Return procedure for STM8S207RBT6C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM8S207RBT6C Tags
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