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| PartNumber | AT80C51RD2-RLRUM | AT80C51RD2-RLTIL | AT80C51RD2-RLTIM |
| Description | 8-bit Microcontrollers - MCU MCU 8-Bit HI Perform ROMless 3-5V | IC MCU 8BIT ROMLESS 44VQFP | |
| Manufacturer | Microchip | - | - |
| Product Category | 8-bit Microcontrollers - MCU | - | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | LQFP-44 | - | - |
| Series | 80C | - | - |
| Core | 8051 | - | - |
| Data Bus Width | 8 bit | - | - |
| Maximum Clock Frequency | 60 MHz | - | - |
| Data RAM Size | 1.25 kB | - | - |
| ADC Resolution | No ADC | - | - |
| Number of I/Os | 32 I/O | - | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Reel | - | - |
| Height | 1.45 mm | - | - |
| Length | 10.1 mm | - | - |
| Program Memory Type | ROMLess | - | - |
| Width | 10.1 mm | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Interface Type | SPI, UART | - | - |
| Moisture Sensitive | Yes | - | - |
| Number of Timers/Counters | 3 Timer | - | - |
| Processor Series | AT80x | - | - |
| Product Type | 8-bit Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 1500 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 2.7 V | - | - |
| Unit Weight | 0.012561 oz | - | - |