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| PartNumber | AT89C51ED2-SLRUM | AT89C51ED2-SLSIM | AT89C51ED2-SLRIM |
| Description | 8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind | IC MCU 8BIT 64KB FLASH 44PLCC | IC MCU 8BIT 64KB FLASH 44PLCC |
| Manufacturer | Microchip | - | - |
| Product Category | 8-bit Microcontrollers - MCU | - | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | PLCC-44 | - | - |
| Core | 8051 | - | - |
| Data Bus Width | 8 bit | - | - |
| Maximum Clock Frequency | 60 MHz | - | - |
| Program Memory Size | 64 kB | - | - |
| Data RAM Size | 2 kB | - | - |
| ADC Resolution | No ADC | - | - |
| Number of I/Os | 32 I/O | - | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | - | - |
| Packaging | Reel | - | - |
| Product | MCU | - | - |
| Program Memory Type | Flash | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Interface Type | SPI, UART | - | - |
| Number of Timers/Counters | 3 Timer | - | - |
| Processor Series | AT89x | - | - |
| Product Type | 8-bit Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 500 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Unit Weight | 0.084185 oz | - | - |