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Integrated Circuits (ICs)

STM8S903F3M3

Mainstream Application specific line 8-bit MCU with 8 Kbytes Flash, 16 MHz CPU, integrated EEPROM

The STMicroelectronics Mainstream Application Specific 8-bit MCU is a versatile microcontroller designed for a wide range of embedded applications. With an impressive 8 Kbytes of Flash memory and a 16 MHz CPU, this MCU delivers reliable performance while ensuring low power consumption. Its robust feature set includes multiple communication interfaces such as I2C, SPI, and UART, making it an ideal choice for applications requiring efficient data handling and control. The device is housed in a com

BrandSTMicroelectronics
PackageSO
Device TypeMicrocontrollers

Full Specifications

Number of I/Os16
InterfaceI2C, IrDA, LIN, SPI, UART, USART
Memory TypeFLASH
Memory Size8kB
Min Supply Voltage2.95V
Max Supply Voltage5.5V
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
Lifecycle StatusProduction
Frequency16MHz
Max Operating Temperature125°C
Min Operating Temperature-40°C
Nominal Supply Current5µA
Number of A/D Converters5
Number of I2C Channels1

About This Product

The STMicroelectronics Mainstream Application Specific 8-bit MCU is a versatile microcontroller designed for a wide range of embedded applications. With an impressive 8 Kbytes of Flash memory and a 16 MHz CPU, this MCU delivers reliable performance while ensuring low power consumption. Its robust feature set includes multiple communication interfaces such as I2C, SPI, and UART, making it an ideal choice for applications requiring efficient data handling and control. The device is housed in a compact 20-pin SO package, suitable for space-constrained designs, and operates effectively in harsh environments with a temperature range of -40°C to 125°C.

What is this product used for?

Suitable for design, repair, and production programs using Microcontrollers devices.

Key Features

  • Case/Package: SO
  • Number of Pins: 20
  • Interface: I2C, IrDA, LIN, SPI, UART, USART
  • Lifecycle Status: Production
  • Number of I/Os: 16
  • Memory Type: FLASH

Typical Use Cases

Embedded Processors and Controllers Microcontrollers SO Microcontrollers

Sourcing Support for This MPN

Contact JaronSemi to confirm package, date code, and traceability requirements.

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  • Approved-alternate and cross-reference review when the requested line is constrained
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RFQ Checklist

Part number Confirm the target MPN or suggest approved alternates
Target Quantity Sample, pilot run, or mass production volume
Project stage Prototype, NPI, or ongoing production
Target price Budget or target price range if available
Mainstream Application specific line 8-bit MCU with 8 Kbytes Flash, 16 MHz CPU, integrated EEPROM

STM8S903F3M3

STMicroelectronics

The STMicroelectronics Mainstream Application Specific 8-bit MCU is a versatile microcontroller designed for a wide range of embedded applications. With an impressive 8 Kbytes of Flash memory and a 16 MHz CPU, this MCU delivers reliable performance while ensuring low power consumption. Its robust feature set includes multiple communication interfaces such as I2C, SPI, and UART, making it an ideal choice for applications requiring efficient data handling and control. The device is housed in a com

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