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STMicroelectronics STM8S207S8T3C
- Part No.:
- STM8S207S8T3C
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
STM8S207S8T3C.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:478
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Product details
Overview
STM8S207S8T3C 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, 6 KB RAM, integrated CAN 2.0B controller, dual UARTs with LIN support, SPI, I²C, and 10-bit ADC with up to 16 channels - deployed in automotive body control modules and industrial motor drives.
For engineers reviewing the STM8S207S8T3C datasheet, STM8S207S8T3C pinout, STM8S207S8T3C application, or STM8S207S8T3C equivalent, key selection criteria include CAN interface timing compliance, SWIM debug accessibility, low-power active-halt mode current (<1.5 µA at 3.3 V), and LQFP44 package thermal performance in extended temperature (-40 to 125 °C) environments.
Technical Context
The STM8S207S8T3C implements a 3-stage pipeline 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 user-trimmable 16 MHz RC, low-power 128 kHz RC, and crystal oscillator with clock security monitor.
Peripheral integration includes an advanced 16-bit TIM1 timer with dead-time insertion and complementary outputs for motor control, two 16-bit general-purpose timers (TIM2/TIM3), an 8-bit basic timer (TIM4), and beCAN operating at up to 1 Mbit/s with full CAN 2.0B protocol handling - all independently gated for power optimization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Harvard-architecture STM8 core with 3-stage pipeline and extended instruction set - enables deterministic real-time execution and efficient code density. |
| Max CPU Frequency | 24 MHz with zero wait states up to 16 MHz - supports time-critical control loops without memory latency penalties. |
| Flash / EEPROM / RAM | 64 KB Flash (20-year data retention @55°C after 10k cycles), 2 KB true data EEPROM (300k write cycles), 6 KB RAM - sufficient for firmware + parameter storage in field-upgradable systems. |
| CAN Interface | beCAN 2.0B compliant, 1 Mbit/s data rate, message filtering and FIFO buffering - meets automotive body network timing and reliability requirements. |
| ADC Resolution & Channels | 10-bit SAR ADC with up to 16 input channels and hardware-accelerated scan mode - enables simultaneous sensor monitoring in HVAC or battery management. |
| Low-Power Modes | Wait, active-halt (≤1.5 µA @3.3 V), and halt modes with individual peripheral clock gating - extends battery life in always-on industrial sensors. |
| Debug Interface | Single Wire Interface Module (SWIM) with non-intrusive real-time debugging and flash programming - reduces BOM cost vs JTAG and simplifies PCB layout. |
Pinout & Package
LQFP44 package (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, rated for -40 to 125 °C operation. Pin count and I/O mapping align with STM8S207xx series standardization for drop-in compatibility across memory variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 2.95–5.5 V supply rails with dedicated VCAP capacitor pad - ensures stable core voltage under dynamic load switching. |
| NRST | Active-low reset input | Internal POR/PDR plus external reset capability with Schmitt-triggered input - guarantees reliable initialization during brown-out or ESD events. |
| SWIM | Single-wire debug interface | Bi-directional debug channel sharing one GPIO - eliminates need for dedicated debug header and reduces PCB footprint. |
| PA0–PA7, PB0–PB7, PC0–PC7, PD0–PD7, PE0–PE3 | General-purpose I/O ports | Up to 38 programmable I/Os with high-sink capability (20 mA), current injection immunity, and alternate function remapping - supports flexible peripheral routing in space-constrained designs. |
| CAN_RX / CAN_TX | CAN physical layer interface | Dedicated differential signal pair with internal pull-ups and slew-rate control - enables direct connection to ISO 11898-2 transceivers without external biasing. |
| UART1_TX / UART1_RX / UART3_TX / UART3_RX | Asynchronous serial interfaces | Two independent UARTs with LIN master/slave auto-synchronization - allows concurrent diagnostics (UART1) and body network communication (UART3). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CAN 2.0B controller | Hardware message filtering, 32 message objects, TX/RX FIFOs - eliminates software overhead for CAN arbitration and error handling in automotive ECUs. |
| User-trimmable 16 MHz RC oscillator | ±1% accuracy after trimming over temperature - replaces external crystal in cost-sensitive applications while maintaining UART baud rate stability. |
| Advanced TIM1 timer with dead-time insertion | 4 CAPCOM channels, 3 complementary outputs, programmable dead-time (1–1023 ns) - enables precise 3-phase motor gate drive without external logic. |
| True data EEPROM (2 KB) | 300 kcycle endurance, byte-level erase/write, no wear leveling required - stores calibration data and runtime parameters with guaranteed longevity. |
| SWIM debug interface | Single-pin, non-intrusive, supports flash programming and real-time variable watch - reduces development cycle time and eliminates debug connector footprint. |
Applications
| Automotive Body Control Unit (BCU) | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, lighting, and seat position in 12 V vehicle platforms. IC Role / Device Role / Timing Role: Main MCU executing CAN-based command arbitration, PWM-driven actuator control, and LIN slave communication with sensors. Use Value: Integrated beCAN and TIM1 dead-time insertion eliminate external CAN transceiver timing mismatches and gate driver ICs - reducing BOM by ≥2 components. |
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 ADC-sampled phase currents and TIM1-generated complementary PWM with synchronized sampling. Use Value: 10-bit ADC with hardware scan and TIM1 trigger synchronization achieve <1 µs timing jitter between current sampling and PWM edge - critical for torque ripple reduction. |
| Smart Energy Meter Interface | Medical Infusion Pump Controller |
Use Scenario: Isolated communication bridge between metrology ASIC and HMI/display in Class 0.5S electricity meters. IC Role / Device Role / Timing Role: UART-to-I²C protocol converter with CRC-verified data forwarding and watchdog-monitored firmware integrity checks. Use Value: Dual UARTs enable simultaneous RS-485 (meter bus) and isolated UART (ASIC interface) without software multiplexing - ensuring deterministic latency <50 µs. |
Use Scenario: Safety-critical delivery control of IV fluids with pressure sensing, occlusion detection, and audible/visual alarms. IC Role / Device Role / Timing Role: Primary safety monitor running independent watchdog chains, ADC-based pressure threshold validation, and fail-safe motor shutdown via TIM1 fault input. Use Value: Hardware-implemented independent watchdog (IWDG) and window watchdog (WWDG) with separate clock sources meet IEC 62304 Class C requirements without external supervisors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8S207K6T3C | 48 KB Flash, same LQFP44 package, identical peripherals and clock system - reduced program memory only. | Suitable for simpler firmware with smaller code footprint (e.g., basic sensor nodes without OTA updates). | Select when application code size remains below 40 KB and EEPROM/RAM requirements match. |
| STM8AF5286TAY | Automotive-grade (AEC-Q100 Grade 1), same core/peripherals but enhanced ESD (±8 kV HBM), wider VDD range (2.75–5.5 V). | Required for under-hood automotive applications where ambient temperature exceeds 105 °C or EMC stress is severe. | Choose for production automotive ECUs needing qualification evidence and extended environmental robustness. |
Compared with STM8S207K6T3C, the STM8S207S8T3C provides 16 KB additional Flash for feature-rich firmware and future updates; versus STM8AF5286TAY, it trades automotive qualification for lower unit cost and faster lead time in industrial applications.
Availability
STM8S207S8T3C is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart metering, and medical device subsystems requiring stable component supply across multi-year production cycles.
Supply support for STM8S207S8T3C 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 analog devices for industrial, automotive, and consumer markets.
The STM8S series targets cost-sensitive, high-reliability embedded control applications requiring robust peripherals, low-power operation, and long-term supply assurance - especially where 8-bit determinism and toolchain maturity outweigh 32-bit processing needs.
FAQ
What is the maximum operating temperature range for STM8S207S8T3C?
The STM8S207S8T3C is qualified for industrial temperature range: –40 °C to +125 °C. This is confirmed in Section 10.3.2 of the datasheet (DocID14733 Rev 13), where electrical characteristics are specified across this full range, including Flash read/write timing and ADC accuracy.
Does STM8S207S8T3C support in-application programming (IAP) of Flash memory?
Yes - the device supports IAP via its built-in bootloader and Flash programming interface. The Flash memory is organized into 128-byte pages with hardware write/erase protection, and the SWIM interface enables secure field updates without external programmers, as detailed in Sections 4.4 and 6.1 of the datasheet.
How many CAN message objects does the beCAN module support?
The beCAN controller supports 32 message objects with configurable identifiers, masks, and FIFO buffers. Each object can be assigned as transmit or receive, with priority arbitration and automatic retransmission on error - documented in Section 4.14.5 and Table 4 of the datasheet.
Is the 2 KB data EEPROM truly independent of Flash memory?
Yes - the 2 KB data EEPROM is physically separate from Flash, with distinct address space, independent endurance rating (300 kcycles vs 10 kcycles for Flash), and byte-level erase/write capability. It retains data for 20 years at 55 °C and requires no page erasure before writing, per Section 4.4 and Table 36.
STM8S207S8T3C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 44-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:
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8S207S8T3C FAQ
1.How can I place an order for STM8S207S8T3C through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8S207S8T3C 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 STM8S207S8T3C reliable?
The price and inventory of STM8S207S8T3C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8S207S8T3C is usually 5 days.
3.What payment methods are accepted for STM8S207S8T3C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8S207S8T3C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8S207S8T3C?
STM8S207S8T3C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8S207S8T3C 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 STM8S207S8T3C?
For technical support, including STM8S207S8T3C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8S207S8T3C requirements.
6.How does Aetrix verify that STM8S207S8T3C is sourced from the original manufacturer or authorized distributors?
All STM8S207S8T3C 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 STM8S207S8T3C meets industry standards.
7.What is the process for return or replacement of STM8S207S8T3C?
All STM8S207S8T3C units undergo pre-shipment inspection (PSI). If there is an issue with STM8S207S8T3C, 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 STM8S207S8T3C part is unused and in its original packaging.
Return procedure for STM8S207S8T3C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM8S207S8T3C Tags
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