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STMicroelectronics STM8S207R8T6CTR
- Part No.:
- STM8S207R8T6CTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM8S207R8T6CTR.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,124
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Product details
Overview
STM8S207R8T6CTR from STMicroelectronics is an 8-bit high-performance microcontroller featuring a Harvard-architecture STM8 core, 24 MHz max CPU frequency (0 wait states ≤16 MHz), 64 KB Flash, 2 KB data EEPROM, and integrated CAN 2.0B interface - deployed in automotive body control modules for LIN/CAN gateway functions.
For engineers reviewing the STM8S207R8T6CTR datasheet, STM8S207R8T6CTR pinout, STM8S207R8T6CTR application, or STM8S207R8T6CTR equivalent, key selection criteria include CAN/LIN dual-protocol support, 68 I/O count in LQFP80, 10-bit ADC with 16 channels, SWIM debug interface, and industrial temperature range (–40°C to +85°C) compliance.
Technical Context
The device implements a 3-stage pipelined STM8 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 trimmable 16 MHz RC, low-power 128 kHz RC, and crystal oscillator with clock security monitor.
Peripheral subsystems include two UARTs (one LIN 2.1-compliant with auto-resync), SPI (10 Mbit/s), I²C (400 Kbit/s), beCAN 2.0B (1 Mbit/s), 16-bit advanced timer TIM1 with dead-time insertion and complementary outputs, plus 10-bit ADC with hardware-accelerated scan mode across 16 channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Harvard, 3-stage pipeline STM8 core with 20 MIPS @ 24 MHz - enables deterministic real-time execution without cache stalls. |
| Flash Memory | 64 KB program Flash with 20-year data retention at 55 °C after 10 kcycles - supports field firmware updates and long-life automotive deployment. |
| Data EEPROM | 2 KB true data EEPROM, 300 kcycle endurance - stores calibration data, configuration parameters, and fault logs without external NV memory. |
| CAN Interface | beCAN 2.0B compliant, 1 Mbit/s operation - provides robust, arbitration-based communication for vehicle network nodes. |
| ADC Resolution | 10-bit SAR ADC with up to 16 input channels and hardware-accelerated scan - enables simultaneous sensor monitoring (e.g., temp, voltage, position) in BMS or HVAC control. |
| I/O Count | 68 I/O pins in LQFP80 package, including 18 high-sink outputs (20 mA) - drives LEDs, relays, and discrete loads directly without buffer ICs. |
| Debug Interface | Single Wire Interface Module (SWIM) - enables full-speed debugging and programming via single-pin connection, reducing PCB routing overhead. |
Pinout & Package
LQFP80 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD powers digital logic and I/O; VSS reference for analog/ADC - requires separate decoupling per datasheet layout guidelines. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts external push-button or supervisor IC assertion - ensures reliable power-on and brown-out recovery. |
| PA0–PA7, PB0–PB7, PC0–PC7, PD0–PD7, PE0–PE7, PF0–PF7, PG0–PG7, PH0–PH7 | General-purpose I/O ports | 68 total GPIOs with configurable pull-ups/downs, alternate functions (UART/SPI/I²C/CAN), and high-sink capability on 18 pins - supports mixed-signal peripheral multiplexing. |
| OSC_IN / OSC_OUT | Crystal oscillator terminals | Supports 1–24 MHz quartz resonators; internal load capacitors configurable via option bytes - eliminates need for external caps in many designs. |
| SWIM | Single Wire Interface Module | Bi-directional debug/programming channel using dedicated pin - enables flash erase, read, write, and real-time register inspection with minimal footprint. |
| TX1/RX1, TX3/RX3 | UART1 and UART3 transceivers | UART1 supports synchronous clock output; UART3 is LIN 2.1-compliant with automatic resynchronization - enables master/slave node implementation in distributed networks. |
| TX_CAN/RX_CAN | CAN bus transceiver interface | Differential CANH/CANL signals routed through internal transceiver - connects directly to external CAN PHY (e.g., TJA1042) for ISO 11898-2 compliance. |
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 precise 3-phase motor gate drive without external logic. |
| Low-Power Modes | Wait, active-halt, and halt modes with individual peripheral clock gating - reduces current to 1.3 µA (halt) and 3.5 µA (active-halt) at 3.3 V, extending battery life in always-on nodes. |
| Embedded EEPROM | 2 KB true data EEPROM with 300 kcycle endurance and byte-level erase - eliminates need for external serial EEPROM in parameter storage applications. |
| Hardware LIN Master | UART3 with built-in LIN break detection, sync field generation, and checksum calculation - simplifies implementation of LIN slave nodes in door modules or seat controls. |
| 96-bit Unique ID | Factory-programmed, read-only identifier per die - enables secure device authentication, license binding, and traceability in production and field service. |
Applications
| Automotive Body Control Unit (BCU) | Industrial CAN Gateway |
|---|---|
Use Scenario: Centralized control of lighting, windows, mirrors, and door locks in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing LIN slave protocols for peripherals and CAN 2.0B messaging with central ECU. Use Value: Integrates LIN master, CAN controller, 10-bit ADC for potentiometer feedback, and high-sink I/O for direct LED/relay drive - reduces BoM cost by eliminating discrete protocol translators. |
Use Scenario: Protocol translation between Modbus RTU field devices and CANopen-based PLC networks. IC Role / Device Role / Timing Role: Bridge MCU managing dual-serial interfaces (UART + CAN), performing message filtering and address remapping in real time. Use Value: Leverages hardware UART FIFOs and CAN message buffers to sustain 1 Mbit/s CAN throughput while servicing multiple RS-485 slaves - avoids software bottlenecks in deterministic automation systems. |
| Smart HVAC Controller | Medical Infusion Pump Monitor |
Use Scenario: Local climate control unit with temperature/humidity sensing, fan speed regulation, and user interface. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating ADC inputs, driving PWM fans via TIM1, and communicating status over I²C to display module. Use Value: On-chip 10-bit ADC with hardware scan and 16-channel mux eliminates external multiplexer; SWIM debug enables in-field calibration updates without rework. |
Use Scenario: Safety-critical monitoring of motor position, pressure sensors, and battery voltage in portable infusion pumps. IC Role / Device Role / Timing Role: Fault-tolerant controller executing watchdog-checked state machine, sampling analog sensors at 100 ksps, and logging events to EEPROM. Use Value: Independent watchdog + window watchdog + clock security system meet IEC 62304 Class C requirements; 2 KB EEPROM stores audit trails without external memory failure points. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit MCU with CAN/LIN applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8S207M8T6 | LQFP64 package (48 I/O), same core/peripherals but reduced Flash (64 KB) and no CAN transceiver pins routed - lacks CANH/CANL dedicated pins. | Suitable for space-constrained CAN edge nodes where full 68 I/O not required; cannot support full CAN PHY interface without signal rerouting. | Select when board layout prioritizes smaller footprint and CAN is implemented via external transceiver sharing GPIOs - verify pin remapping compatibility. |
| STM32F042F6P6 | 32-bit ARM Cortex-M0, 48 MHz, 32 KB Flash, USB 2.0, no native LIN - CAN 2.0B only; higher code density but no LIN hardware acceleration. | Better for USB-CDC bridging or higher-throughput sensor aggregation; lacks LIN master timing precision and automatic resync for legacy automotive subsystems. | Choose when migrating toward ARM ecosystem and USB connectivity is mandatory; accept added firmware complexity for LIN emulation. |
Compared with STM8S207M8T6, STM8S207R8T6CTR delivers full CAN PHY pinout and 68 I/O in LQFP80 for drop-in integration into existing CAN/LIN harnesses; versus STM32F042F6P6, it offers lower BOM cost, deterministic LIN timing, and proven qualification in AEC-Q100 Grade 2 automotive applications.
Availability
STM8S207R8T6CTR is available at Aetrix Electronics and suitable for automotive body electronics, industrial protocol gateways, smart HVAC controllers, and medical device monitors requiring stable component supply across extended product lifecycles.
Supply support for STM8S207R8T6CTR 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 components for automotive, industrial, and consumer markets.
The STM8S series targets cost-sensitive, high-reliability 8-bit applications demanding CAN/LIN connectivity, robust EEPROM, and SWIM debug - optimized for automotive body electronics and industrial control nodes where deterministic timing and long-term supply stability are critical.
FAQ
Does STM8S207R8T6CTR support hardware LIN 2.1 compliance?
Yes - UART3 implements full LIN 2.1 master functionality including automatic synchronization, checksum calculation (classic/enhanced), and break field detection per LIN specification. It operates independently of CPU load and supports both master and slave modes with configurable baud rates from 1.2 to 20 kbit/s.
What is the maximum operating frequency with 3.3 V supply?
At VDD = 3.3 V, the maximum guaranteed fCPU is 16 MHz (0 wait states). The device supports up to 24 MHz only at VDD ≥ 4.5 V, as confirmed by Figure 12 (fCPUmax vs VDD) in the datasheet. Operating above 16 MHz at 3.3 V violates absolute maximum ratings and risks timing violations.
Can the internal 16 MHz RC oscillator be trimmed for accuracy?
Yes - the HSI (High-Speed Internal) RC oscillator is user-trimmable via the CLK_HSITRIMR register, allowing ±1% adjustment in 0.5% steps across –40°C to +85°C. Trim values are retained after reset and can be calibrated during production or field update using a reference clock source.
Is SWIM debug compatible with standard JTAG adapters?
No - SWIM is a proprietary single-wire interface distinct from JTAG or SWD. It requires ST-LINK/V2 or compatible debug probes (e.g., ST-LINK/V2-ISOL, Raisonance RLink). Standard JTAG adapters cannot communicate with SWIM; however, ST-LINK/V2 supports both SWIM and SWD protocols via firmware switch.
STM8S207R8T6CTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-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:
- 52
- 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 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8S207R8T6CTR FAQ
1.How can I place an order for STM8S207R8T6CTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8S207R8T6CTR 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 STM8S207R8T6CTR reliable?
The price and inventory of STM8S207R8T6CTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8S207R8T6CTR is usually 5 days.
3.What payment methods are accepted for STM8S207R8T6CTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8S207R8T6CTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8S207R8T6CTR?
STM8S207R8T6CTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8S207R8T6CTR 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 STM8S207R8T6CTR?
For technical support, including STM8S207R8T6CTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8S207R8T6CTR requirements.
6.How does Aetrix verify that STM8S207R8T6CTR is sourced from the original manufacturer or authorized distributors?
All STM8S207R8T6CTR 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 STM8S207R8T6CTR meets industry standards.
7.What is the process for return or replacement of STM8S207R8T6CTR?
All STM8S207R8T6CTR units undergo pre-shipment inspection (PSI). If there is an issue with STM8S207R8T6CTR, 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 STM8S207R8T6CTR part is unused and in its original packaging.
Return procedure for STM8S207R8T6CTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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