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| PartNumber | AT91SAM7XC256-AU | AT91SAM7XC256-AU-999 | AT91SAM7XC256-CU |
| Description | ARM Microcontrollers - MCU LQFP IND TEMP | IC MCU 32BIT 256KB FLASH 100LQFP | IC MCU 32BIT 256KB FLASH 100BGA SAM7XC |
| Manufacturer | Microchip | - | - |
| Product Category | ARM Microcontrollers - MCU | - | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | LQFP-100 | - | - |
| Series | SAM7X/XC | - | - |
| Core | ARM7TDMI | - | - |
| Data Bus Width | 32 bit | - | - |
| Maximum Clock Frequency | 20 MHz | - | - |
| Program Memory Size | 256 kB | - | - |
| Data RAM Size | 64 kB | - | - |
| Number of I/Os | 62 I/O | - | - |
| Operating Supply Voltage | 1.8 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Height | 1.4 mm | - | - |
| Length | 14 mm | - | - |
| Program Memory Type | Flash | - | - |
| Width | 14 mm | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Interface Type | SPI, TWI, UART | - | - |
| Analog Supply Voltage | 3.3 V | - | - |
| I/O Voltage | 3.3 V | - | - |
| Moisture Sensitive | Yes | - | - |
| Number of Timers/Counters | 4 Timer | - | - |
| Product Type | ARM Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 90 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Supply Voltage Max | 1.95 V | - | - |
| Supply Voltage Min | 1.65 V | - | - |
| Part # Aliases | AT91SAM7XC256B-AU | - | - |
| Unit Weight | 0.046530 oz | - | - |