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| PartNumber | AT89C51ED2-RDRUM | AT89C51ED2-RDTIM | AT89C51ED2-RDRIM |
| Description | 8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind | IC MCU 8BIT 64KB FLASH 44VQFP | IC MCU 8BIT 64KB FLASH 44VQFP |
| Manufacturer | Microchip | - | Atmel |
| Product Category | 8-bit Microcontrollers - MCU | - | Embedded - Microcontrollers |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | LQFP-64 | - | - |
| Core | 8051 | - | - |
| Data Bus Width | 8 bit | - | - |
| Maximum Clock Frequency | 60 MHz | - | - |
| Program Memory Size | 64 kB | - | 64KB (64K x 8) |
| 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 | - | Cut Tape (CT) |
| Product | MCU | - | - |
| Program Memory Type | Flash | - | 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 | 1500 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Unit Weight | 0.012088 oz | - | - |
| Series | - | - | 89C |
| Package Case | - | - | 44-LQFP |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | - | 44-VQFP (10x10) |
| Number of I O | - | - | 50 |
| Speed | - | - | 60MHz |
| EEPROM Size | - | - | 2K x 8 |
| Core Processor | - | - | 80C51 |
| RAM Size | - | - | 2K x 8 |
| Peripherals | - | - | POR, PWM, WDT |
| Connectivity | - | - | SPI, UART/USART |
| Voltage Supply Vcc Vdd | - | - | 2.7 V ~ 5.5 V |
| Core Size | - | - | 8-Bit |
| Data Converters | - | - | - |
| Oscillator Type | - | - | External |