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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM8S
Packaging Tray |
Core Processor STM8
Core Size 8-Bit
Speed 24MHz
Connectivity CANbus, I2C, IrDA, LINbus, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 38
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 10x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package -
Package / Case 48-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM8S208CBT6 from STMicroelectronics is an 8-bit MCU with a 24MHz STM8 core. It features 128KB flash and 6KB RAM, operating from 2.95V to 5.5V. In a 48-LQFP package, it integrates BOR, POR, PWM, and WDT, making it a robust choice for automotive and industrial control systems.

  • 5V tolerant I/O – simplifies interfacing with legacy sensors and actuators.
  • Large 128KB flash – supports complex firmware and data logging.
  • 24MHz core speed – fast response for real-time control.
  • Integrated BOR and POR – enhances system reliability.

Automotive Body Control

5V operation and 24MHz STM8 core handle LIN/CAN interfaces in body modules.

Industrial Motor Drives

PWM outputs and WDT provide robust control for 3-phase induction motors.

Home Appliance Panels

128KB flash supports complex UI logic and EEPROM emulation in washing machines.

Power Tools

Wide voltage range and -40°C to 85°C rating suit battery-powered tools.

Smart Meters

High flash density and 5V tolerance enable metering firmware with calibration data.

HVAC Controllers

BOR and POR ensure reliable startup in noisy AC environments.

Q: What is the supply voltage range?
A: It operates from 2.95V to 5.5V, compatible with 5V systems.
Q: How much flash memory does it have?
A: It provides 128KB of flash and 6KB of RAM.
Q: What package is available?
A: It comes in a 48-LQFP package with exposed pad.
Q: Does it have a brown-out reset?
A: Yes, it includes BOR, POR, PWM, and WDT.
Base Product Number : STM8S208CB
128KB flash 24MHz 6KB RAM 8-bit MCU automotive BOR industrial LQFP-48 POR PWM STM8 core WDT
Q: What is the supply voltage range?
A: It operates from 2.95V to 5.5V, compatible with 5V systems.
Q: How much flash memory does it have?
A: It provides 128KB of flash and 6KB of RAM.
Q: What package is available?
A: It comes in a 48-LQFP package with exposed pad.
Q: Does it have a brown-out reset?
A: Yes, it includes BOR, POR, PWM, and WDT.