For Reference Only
| Part Number | STM8S903F3M3 |
| Manufacturer | STMicroelectronics |
| Category | Integrated Circuits (ICs) › Microcontrollers |
| Description | IC MCU 8BIT 8KB FLASH 20SO |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | STM8S903F3M3 PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Dec 14 - Dec 18 2025(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |
|
| Shipping | ![]() |
| Part Number: | STM8S903F3M3 |
| Brand: | STMicroelectronics |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Integrated Circuits (ICs) |
| Subcategory: | Microcontrollers |
| Manufacturer: | STMicroelectronics |
| Product Status: | Active |
| Core Processor: | STM8 |
| Core Size: | 8-Bit |
| Speed: | 16MHz |
| Connectivity: | I²C, IrDA, LINbus, SPI, UART/USART |
| Peripherals: | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O: | 16 |
| Program Memory Size: | 8KB (8K x 8) |
| Program Memory Type: | FLASH |
| EEPROM Size: | 640 x 8 |
| RAM Size: | 1K x 8 |
| Voltage - Supply (Vcc/Vdd): | 2.95V ~ 5.5V |
| Data Converters: | A/D 5x10b |
| Oscillator Type: | Internal |
| Operating Temperature: | -40°C ~ 125°C (TA) |
| Mounting Type: | Surface Mount |
| Package / Case: | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package: | 20-SO |
| R5F100GHGFB#50 | IC MCU 16BIT 192KB FLASH 48LFQFP | 61866 More on Order |
|
| PIC16LF722-I/SS | IC MCU 8BIT 3.5KB FLASH 28SSOP | 49080 More on Order |
|
| R5F52315ADNE#20 | IC MCU 32BIT 128KB FLASH 48HWQFN | 33600 More on Order |
|
| NUC125LC2AE | IC MCU 32BIT 32KB FLASH 48LQFP | 58678 More on Order |
|
| AT32UC3B1256-AUR | IC MCU 32BIT 256KB FLASH 48TQFP | 9969 More on Order |
|
| CY96F613RBPMC-GS123-UJE2 | IC MCU 16BIT 96KB FLASH 48LQFP | 23788 More on Order |
|
| MKL15Z64VFT4 | IC MCU 32BIT 64KB FLASH 48QFN | 12866 More on Order |
|
| MSP430F2131IDWR | IC MCU 16BIT 8KB FLASH 20SOIC | 26857 More on Order |
|
| MSP430FR5724IRGET | IC MCU 16BIT 8KB FRAM 24VQFN | 25849 More on Order |
|
| CY96F613RBPMC-GS-130UJE2 | IC MCU 16BIT 96KB FLASH 48LQFP | 24661 More on Order |
|
| EFM32GG942F1024G-E-QFP64 | IC MCU 32BIT 1MB FLASH 64TQFP | 10718 More on Order |
|
| Z8F042ASH020SG2156 | IC MCU 8BIT 4KB FLASH 20SOIC | 20752 More on Order |
| In Stock | 68055 pieces - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
Warm Tips: Please fill out the form below. We will contact you as soon as possible.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000 | $0.79170 | $791.7 |
Due to the impact of the COVID-19,the above prices have not been updated, please resend the inquiry to us, thank you for your understanding
Please feel free to contact us for details.