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STMicroelectronics NUCLEO-8S208RB

Name: NUCLEO-8S208RB
Brand: STMicroelectronics
SKU: NUCLEO-8S208RB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NUCLEO-8S208RB

Manufacturer:: STMicroelectronics

Category:: Embedded MCU, DSP Evaluation Boards

Package:

Datasheet:: NUCLEO-8S208RB.pdf

Description:: NUCLEO-64 STM8S208RB EVAL BRD

Quantity:: RFQ Add To RFQ list

Payment:

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Inventory:4,340

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Product details

Overview

NUCLEO-8S208RB from STMicroelectronics is an STM8S208RBT6-based 64-pin LQFP development board with 128 KB Flash, integrated ST-LINK/V2-1 debugger/programmer, Arduino Uno V3 and ST morpho expansion headers, and four user-accessible LEDs for USB, STLINK, user, and power indication - used for rapid prototyping of industrial control and sensor interface applications.

For engineers reviewing the NUCLEO-8S208RB datasheet, NUCLEO-8S208RB pinout, NUCLEO-8S208RB application, or NUCLEO-8S208RB equivalent, key selection considerations include on-board SWIM debugging support, dual power supply options (USB VBUS or 3.3–12 V external), STM8S208RBT6 microcontroller integration, and compatibility with STVD-STM8, IAR-EWSTM8, and Cosmic IDEA toolchains.

Technical Context

The NUCLEO-8S208RB implements a complete evaluation platform for the STM8S208RBT6 MCU, featuring a 24 MHz STM8 core, 128 KB Flash, 6 KB RAM, and hardware peripherals including UART, SPI, I²C, timers, ADC, and comparator. It supports SWIM-based programming and real-time debugging without external tools.

Board-level resources include a 32.768 kHz LSE crystal oscillator (not populated on NUCLEO-8S208RB per DB3591 Rev 1 Table 1 footnote), dual push-buttons (USER and RESET), and flexible power routing via USB VBUS or external 3.3 V / 5 V / 7–12 V sources - enabling validation across low-power and general-purpose embedded use cases.

Key Specifications

Parameter	Value and Actual Design Meaning
MCU Core	STM8S208RBT6: 24 MHz STM8 CPU with 128 KB Flash, 6 KB RAM, and hardware math co-processor
Debug Interface	Integrated ST-LINK/V2-1 supporting SWIM protocol - enables programming, debugging, and virtual COM port over single USB connection
Expansion Headers	Arduino Uno V3 footprint + ST morpho headers - provides full access to all 64 LQFP I/O pins including analog, digital, and peripheral signals
Power Options	USB VBUS (5 V) or external supply (3.3 V, 5 V, or 7–12 V) with onboard voltage regulation and power management test points
LED Indicators	Four LEDs: LD1 (power), LD2 (user), LD3 (ST-LINK 5 V), LD4 (USB communication) - provide real-time status feedback during development
Buttons	Two tactile switches: USER (PA1, configurable input) and RESET (hard reset of STM8S208RBT6)

Availability

NUCLEO-8S208RB is available at Aetrix Electronics and suitable for industrial automation prototyping, sensor node development, and educational embedded systems training requiring stable component supply and immediate out-of-box usability.

Supply support for NUCLEO-8S208RB 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 NUCLEO-8S208RB belongs to ST's STM8 Nucleo-64 board family - engineered to accelerate evaluation and firmware development for STM8S-series microcontrollers in cost-sensitive, resource-constrained embedded applications.

FAQ

Does NUCLEO-8S208RB support SWIM debugging?

Yes. The board integrates ST-LINK/V2-1 with native SWIM (Single Wire Interface Module) support, allowing full programming, real-time debugging, and memory inspection of the STM8S208RBT6 MCU using standard USB connection - no external debugger required.

What IDEs are officially supported for NUCLEO-8S208RB firmware development?

Officially supported IDEs include ST's free STVD-STM8 (with Cosmic toolchain), IAR Embedded Workbench for STM8 (IAR-EWSTM8), and Cosmic's free IDEA IDE. All support SWIM-based download and debug via the on-board ST-LINK/V2-1 interface.

Is the 32.768 kHz LSE crystal pre-soldered on NUCLEO-8S208RB?

No. According to STMicroelectronics DB3591 Rev 1 (May 2018), the 32.768 kHz LSE crystal oscillator is only included on the NUCLEO-8L152R8 variant - it is not populated on the NUCLEO-8S208RB board.

Can NUCLEO-8S208RB be powered from an external 12 V source?

Yes. The board accepts external power from 3.3 V, 5 V, or 7–12 V sources via the VIN pin or dedicated power connector. Onboard regulators condition this input to generate stable 3.3 V and 5 V rails for the MCU and ST-LINK circuitry.

NUCLEO-8S208RB Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STM8S

Packaging:: Bulk

Product Status:: Active

Type:: MCU 8-Bit

Core Processor:: STM8

Platform:: Nucleo-64

Utilized IC / Part:: STM8S208

Mounting Type:: Fixed

Contents:: Board(s)

NUCLEO-8S208RB FAQ

1.How can I place an order for NUCLEO-8S208RB through Aetrix?

Please submit a Request for Quotation (RFQ) for NUCLEO-8S208RB 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 NUCLEO-8S208RB reliable?

The price and inventory of NUCLEO-8S208RB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NUCLEO-8S208RB is usually 5 days.

3.What payment methods are accepted for NUCLEO-8S208RB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NUCLEO-8S208RB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NUCLEO-8S208RB?

NUCLEO-8S208RB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NUCLEO-8S208RB 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 NUCLEO-8S208RB?

For technical support, including NUCLEO-8S208RB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NUCLEO-8S208RB requirements.

6.How does Aetrix verify that NUCLEO-8S208RB is sourced from the original manufacturer or authorized distributors?

All NUCLEO-8S208RB 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 NUCLEO-8S208RB meets industry standards.

7.What is the process for return or replacement of NUCLEO-8S208RB?

All NUCLEO-8S208RB units undergo pre-shipment inspection (PSI). If there is an issue with NUCLEO-8S208RB, 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 NUCLEO-8S208RB part is unused and in its original packaging.

Return procedure for NUCLEO-8S208RB:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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