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STMicroelectronics STM8S207RBT3TR
- Part No.:
- STM8S207RBT3TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM8S207RBT3TR.pdf
- Description:
- IC MCU 8BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,447
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Product details
Overview
STM8S207RBT3TR 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 active beCAN 2.0B interface - deployed in automotive body control modules, industrial sensor nodes, and smart appliance motor controllers.
For engineers reviewing the STM8S207RBT3TR datasheet, STM8S207RBT3TR pinout, STM8S207RBT3TR application, or STM8S207RBT3TR equivalent, key selection criteria include CAN bus integration, SWIM single-wire debug support, 68 I/O capability in LQFP80, low-power active-halt mode (0.9 µA typ), and 96-bit unique ID for secure firmware binding.
Technical Context
The STM8S207RBT3TR 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 user-trimmable 16 MHz RC, low-power 128 kHz RC, and crystal oscillator with clock security monitor.
Peripheral subsystems include TIM1 (16-bit advanced timer with dead-time insertion and 3 complementary outputs), two 16-bit general-purpose timers (TIM2/TIM3), 8-bit basic timer (TIM4), window/independent watchdogs, and analog subsystem with 10-bit ADC sampling at up to 1 MSPS with hardware-accelerated scan mode.
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 control without cache latency. |
| Max Operating Frequency | 24 MHz with zero wait states ≤16 MHz - supports high-speed peripheral synchronization and tight timing loops. |
| Memory Resources | 128 KB Flash (20-year retention @ 55 °C after 10k cycles), 2 KB true data EEPROM (300k write cycles), 6 KB RAM - sufficient for bootloader + application + parameter storage. |
| ADC Resolution & Channels | 10-bit SAR ADC with up to 16 input channels and hardware-accelerated scan - enables simultaneous multi-sensor monitoring in motor control or power metering. |
| CAN Interface | beCAN 2.0B compliant, 1 Mbit/s data rate, message filtering and FIFO buffering - meets automotive Class B communication requirements. |
| Debug Interface | Single Wire Interface Module (SWIM) - allows full debug, flash programming, and memory access using only one pin (SWIM). |
| Supply Voltage Range | 2.95 V to 5.5 V - supports direct connection to 3.3 V or 5 V rails without level-shifting in mixed-voltage systems. |
| Low-Power Modes | Wait, active-halt (0.9 µA typ), and halt modes with individual peripheral clock gating - extends battery life in portable industrial sensors. |
Pinout & Package
LQFP80 (14 × 14 mm, 0.5 mm pitch) package with 68 user-configurable I/Os including 18 high-sink outputs (up to 20 mA sink per pin), NRST, SWIM, and dedicated CANH/CANL pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts 100 ns pulse width - ensures robust recovery from brown-out or ESD events. |
| SWIM | Single-wire debug interface | Bi-directional serial interface for programming and debugging - eliminates need for JTAG header space and reduces BOM count. |
| CANH / CANL | Differential CAN bus transceiver interface | Direct connection to ISO 11898-compliant physical layer - enables fault-tolerant vehicle network communication without external transceiver. |
| PA0–PA7, PB0–PB7, etc. | General-purpose I/O with alternate functions | Configurable as GPIO, UART, SPI, I²C, TIM, ADC, or beCAN - supports flexible peripheral mapping via remapping registers. |
| VDDA / VSSA | Analog power supply/ground | Separate analog domain with dedicated 5.0 V or 3.3 V supply - isolates noise-sensitive ADC and internal reference from digital switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| 96-bit unique ID | Factory-programmed immutable identifier - enables device-specific cryptographic key derivation and anti-cloning in firmware licensing. |
| Advanced control timer (TIM1) | 16-bit with 4 CAPCOM channels, 3 complementary outputs, and programmable dead-time - supports 3-phase BLDC motor commutation without external logic. |
| UART3 with LIN 2.1 compliance | Hardware LIN master/slave mode with auto-resynchronization and break detection - eliminates software bit-banging for automotive sub-node communication. |
| Internal clock trimming | User-adjustable 16 MHz RC oscillator ±1% accuracy over temperature - removes need for external crystal in cost-sensitive applications like white goods. |
| High sink I/O capability | 18 pins rated for 20 mA sink current - directly drives LEDs, relays, or MOSFET gates without external drivers in HMI or actuator interfaces. |
Applications
| Automotive Body Control Unit | Industrial Motor Drive Controller |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirrors, and lighting in 12 V vehicle platforms. IC Role / Device Role / Timing Role: Main MCU executing CAN message routing, PWM motor control, LIN slave coordination, and EEPROM-based configuration storage. Use Value: Integrated beCAN and LIN reduce external IC count; 128 KB Flash accommodates OTA update partitioning and diagnostic stacks. |
Use Scenario: Closed-loop speed/torque control of 3-phase PMSM/BLDC motors in HVAC blowers or conveyor systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using TIM1's complementary PWM outputs and ADC-triggered current sampling. Use Value: Hardware dead-time insertion prevents shoot-through; 10-bit ADC with 16-channel scan enables simultaneous phase current and DC-link voltage sensing. |
| Smart Appliance Power Management | Energy Metering Sensor Node |
Use Scenario: Power sequencing, thermal monitoring, and user interface management in washing machines and dishwashers. IC Role / Device Role / Timing Role: System supervisor managing relay drivers, thermistor ADC reads, buzzer timing, and display backlight PWM. Use Value: High-sink I/Os drive solenoids directly; active-halt mode (<1 µA) enables ultra-low standby consumption during idle cycles. |
Use Scenario: Battery-powered grid-monitoring node measuring voltage, current, and harmonic content in distribution panels. IC Role / Device Role / Timing Role: Low-power acquisition engine triggering ADC conversions on zero-crossing events and storing calibrated samples in EEPROM. Use Value: 2 KB data EEPROM retains calibration coefficients across 300k write cycles; SWIM enables field firmware updates without board removal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8S208RBT3 | Includes full-speed USB 2.0 interface; identical Flash/RAM/ADC/peripherals otherwise. | Required where host/device USB connectivity is needed (e.g., PC-connected diagnostics tools). | Select when USB is mandatory; otherwise STM8S207RBT3TR offers lower cost and same core functionality. |
| STM32F042F6P6 | 32-bit ARM Cortex-M0 core, 48 MHz, 32 KB Flash, no integrated EEPROM, USB 2.0, higher interrupt latency. | Suitable for applications needing higher compute throughput or USB device stack, but requires external EEPROM for parameter storage. | Choose for future-proofing or mixed-signal apps requiring >20 MIPS; avoid if EEPROM persistence or SWIM simplicity are critical. |
Compared with STM8S208RBT3, STM8S207RBT3TR trades USB for lower unit cost and identical CAN/LIN/ADC capabilities; versus STM32F042F6P6, it delivers superior EEPROM endurance, simpler debug infrastructure, and deterministic 8-bit real-time response at lower power.
Availability
STM8S207RBT3TR is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor controllers, smart appliance subsystems, and energy metering nodes requiring stable component supply across extended product lifecycles.
Supply support for STM8S207RBT3TR 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM8S series targets cost-sensitive, high-reliability embedded control applications demanding robust peripherals, long-term availability, and streamlined development - especially where CAN, LIN, or EEPROM persistence are essential.
FAQ
What is the maximum operating temperature range for STM8S207RBT3TR?
The STM8S207RBT3TR is specified for industrial temperature range: –40 °C to +85 °C. Electrical characteristics including Flash write endurance, ADC accuracy, and I/O drive strength are guaranteed across this full range, validated per JEDEC JESD22-A108.
Does STM8S207RBT3TR support in-application programming (IAP) of Flash memory?
Yes - the device supports IAP via its built-in Flash programming interface. Users can erase and reprogram Flash sectors while executing code from other sectors, enabling field firmware updates and parameter storage without external programmers.
How is the 96-bit unique ID accessed in firmware?
The 96-bit ID is stored in read-only memory at address 0x4865–0x486A. It is accessible via standard MOV instruction or C pointer dereference (e.g., *(uint8_t*)0x4865). No special unlock sequence is required, and it remains readable in all low-power modes.
Can the internal 16 MHz RC oscillator meet automotive timing requirements without calibration?
No - uncalibrated accuracy is ±10% over temperature and voltage. However, the trimmable RC supports user calibration via the CLK_HSITRIM register, achieving ±1% stability after one-time factory or runtime tuning - sufficient for LIN and CAN baud rate generation.
STM8S207RBT3TR 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:
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8S207RBT3TR FAQ
1.How can I place an order for STM8S207RBT3TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8S207RBT3TR 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 STM8S207RBT3TR reliable?
The price and inventory of STM8S207RBT3TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8S207RBT3TR is usually 5 days.
3.What payment methods are accepted for STM8S207RBT3TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8S207RBT3TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8S207RBT3TR?
STM8S207RBT3TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8S207RBT3TR 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 STM8S207RBT3TR?
For technical support, including STM8S207RBT3TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8S207RBT3TR requirements.
6.How does Aetrix verify that STM8S207RBT3TR is sourced from the original manufacturer or authorized distributors?
All STM8S207RBT3TR 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 STM8S207RBT3TR meets industry standards.
7.What is the process for return or replacement of STM8S207RBT3TR?
All STM8S207RBT3TR units undergo pre-shipment inspection (PSI). If there is an issue with STM8S207RBT3TR, 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 STM8S207RBT3TR part is unused and in its original packaging.
Return procedure for STM8S207RBT3TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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