C8051F809-GS
IC MCU 8BIT 16KB FLASH 16SOIC
Embedded Microcontrollers
16-SOIC (0.154", 3.90mm Width)
C8051F80x
Not For New Designs
$3.41 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Silicon Labs |
| Model | C8051F809-GS |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Core Processor | 8051 |
| Speed | 25MHz |
| Program Memory Size | 16KB (16K x 8) |
| RAM Size | 512 x 8 |
| Number of I/O | 13 |
| Voltage - Supply | 1.8V ~ 3.6V |
| Connectivity | SMBus (2-Wire/I²C), SPI, UART/USART |
| Peripherals | Cap Sense, POR, PWM, WDT |
| Supplier Device Package | 16-SOIC |
| RoHS | RoHS |
| Part Status | Not For New Designs |
Application & Notes
C8051F809-GS by Silicon Labs is a 8051 microcontroller widely used in industrial control, motor drives, IoT devices, 3D printer mainboards, and consumer electronics. The 16-SOIC (0.154", 3.90mm Width) package fits automated SMT assembly. Operating temperature is -40°C ~ 85°C (TA) — verify your application environment. The C8 variant has 64KB Flash / 20KB RAM; for larger firmware use the CB (128KB) or RC (256KB) variants. Pin-compatible domestic alternatives include GigaDevice GD32 series and Artery AT32 series — note GD32 ADC specs may differ slightly from ST originals.
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All Technical Specifications
| Speed | 25MHz |
| RAM Size | 512 x 8 |
| Core Size | 8-Bit |
| Peripherals | Cap Sense, POR, PWM, WDT |
| Connectivity | SMBus (2-Wire/I²C), SPI, UART/USART |
| Number of I/O | 13 |
| Core Processor | 8051 |
| Oscillator Type | Internal |
| Program Memory Size | 16KB (16K x 8) |
| Program Memory Type | FLASH |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V |
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