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| Part Number | C8051F985-C-GMR | 
| Datasheet | C8051F985-C-GMR datasheet | 
| Description | IC MCU 8BIT 2KB FLASH 20QFN | 
| Manufacturer | Silicon Labs | 
| Series | C8051F9xx | 
| Part Status | Active | 
| Core Processor | CIP-51 8051 | 
| Core Size | 8-Bit | 
| Speed | 25MHz | 
| Connectivity | SMBus (2-Wire/I²C), SPI, UART/USART | 
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | 
| Number of I/O | 16 | 
| Program Memory Size | 2KB (2K x 8) | 
| Program Memory Type | FLASH | 
| EEPROM Size | - | 
| RAM Size | 512 x 8 | 
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V | 
| Data Converters | - | 
| Oscillator Type | Internal | 
| Operating Temperature | -40°C ~ 85°C (TA) | 
| Package / Case | Surface Mount | 
| Supplier Device Package | 20-UFQFN Exposed Pad | 
| Base Part Number | 20-QFN (3x3) |