C8051F505-IMR
IC MCU 8BIT 32KB FLASH 48QFN
Embedded Microcontrollers
48-VFQFN Exposed Pad
C8051F50x
Active
$12.12 / unit (market reference)
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Silicon Labs |
| Model | C8051F505-IMR |
| Package / Case | 48-VFQFN Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Core Processor | 8051 |
| Speed | 50MHz |
| Program Memory Size | 32KB (32K x 8) |
| RAM Size | 4.25K x 8 |
| Number of I/O | 40 |
| Data Converters | A/D 32x12b |
| Voltage - Supply | 1.8V ~ 5.25V |
| Connectivity | EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART |
| Peripherals | POR, PWM, Temp Sensor, WDT |
| Supplier Device Package | 48-QFN (7x7) |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
C8051F505-IMR by Silicon Labs is a 8051 microcontroller widely used in industrial control, motor drives, IoT devices, 3D printer mainboards, and consumer electronics. The 48-VFQFN Exposed Pad package fits automated SMT assembly. Operating temperature is -40°C ~ 125°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 | 50MHz |
| RAM Size | 4.25K x 8 |
| Core Size | 8-Bit |
| Peripherals | POR, PWM, Temp Sensor, WDT |
| Connectivity | EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART |
| Number of I/O | 40 |
| Core Processor | 8051 |
| Data Converters | A/D 32x12b |
| Oscillator Type | Internal |
| Program Memory Size | 32KB (32K x 8) |
| Program Memory Type | FLASH |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.25V |
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