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| Part Number | AT89C51RB2-SLRUM |
| Datasheet | AT89C51RB2-SLRUM datasheet |
| Description | IC MCU 8BIT 16KB FLASH 44PLCC |
| Manufacturer | Microchip Technology |
| Series | 89C |
| Part Status | Active |
| Core Processor | 80C51 |
| Core Size | 8-Bit |
| Speed | 60MHz |
| Connectivity | SPI, UART/USART |
| Peripherals | POR, PWM, WDT |
| Number of I/O | 32 |
| Program Memory Size | 16KB (16K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 1.25K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | - |
| Oscillator Type | External |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package / Case | Surface Mount |
| Supplier Device Package | 44-LCC (J-Lead) |
| Base Part Number | 44-PLCC (16.6x16.6) |