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| Part Number | AT89C51CC03CA-RLTUM | 
| Datasheet | AT89C51CC03CA-RLTUM datasheet | 
| Description | IC MCU 8BIT 64KB FLASH 44VQFP | 
| Manufacturer | Microchip Technology | 
| Series | AT89C CAN | 
| Part Status | Active | 
| Core Processor | 80C51 | 
| Core Size | 8-Bit | 
| Speed | 40MHz | 
| Connectivity | CANbus, UART/USART | 
| Peripherals | POR, PWM, WDT | 
| Number of I/O | 36 | 
| Program Memory Size | 64KB (64K x 8) | 
| Program Memory Type | FLASH | 
| EEPROM Size | 2K x 8 | 
| RAM Size | 2.25K x 8 | 
| Voltage - Supply (Vcc/Vdd) | 3V ~ 5.5V | 
| Data Converters | A/D 8x10b | 
| Oscillator Type | External | 
| Operating Temperature | -40°C ~ 85°C (TA) | 
| Package / Case | Surface Mount | 
| Supplier Device Package | 44-LQFP | 
| Base Part Number | 44-VQFP (10x10) |