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| PartNumber | AT91R40008-66AU | AT91R40008-66AI | AT91R40008-66AI-T |
| Description | ARM Microcontrollers - MCU LQFP IND TEMP | IC MCU 16/32BIT ROMLESS 100TQFP | IC MCU 16/32BIT ROMLESS 100LQFP |
| Manufacturer | Microchip | - | - |
| Product Category | ARM Microcontrollers - MCU | - | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | LQFP | - | - |
| Series | AT91R40008 | - | - |
| Core | ARM7TDMI | - | - |
| Data Bus Width | 32 bit | - | - |
| Maximum Clock Frequency | 75 MHz | - | - |
| Data RAM Size | 256 kB | - | - |
| ADC Resolution | No ADC | - | - |
| Number of I/Os | 32 I/O | - | - |
| Operating Supply Voltage | 1.8 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Tray | - | - |
| Height | 1.4 mm | - | - |
| Length | 14 mm | - | - |
| Program Memory Type | Flash | - | - |
| Width | 14 mm | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Interface Type | EBI, USART | - | - |
| I/O Voltage | 3.3 V | - | - |
| Moisture Sensitive | Yes | - | - |
| Number of Timers/Counters | 10 Timer | - | - |
| Processor Series | AT91Rx | - | - |
| Product Type | ARM Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 90 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Supply Voltage Max | 1.95 V | - | - |
| Supply Voltage Min | 1.65 V | - | - |
| Unit Weight | 0.046530 oz | - | - |