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| Part Number | AT91SAM7S512B-MU-999 | 
| Datasheet | AT91SAM7S512B-MU-999 datasheet | 
| Description | IC MCU 32BIT 512KB FLASH 64QFN | 
| Manufacturer | Microchip Technology | 
| Series | SAM7S | 
| Part Status | Active | 
| Core Processor | ARM7® | 
| Core Size | 16/32-Bit | 
| Speed | 55MHz | 
| Connectivity | I²C, SPI, SSC, UART/USART, USB | 
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT | 
| Number of I/O | 32 | 
| Program Memory Size | 512KB (512K x 8) | 
| Program Memory Type | FLASH | 
| EEPROM Size | - | 
| RAM Size | 64K x 8 | 
| Voltage - Supply (Vcc/Vdd) | 1.65V ~ 1.95V | 
| Data Converters | A/D 8x10b | 
| Oscillator Type | Internal | 
| Operating Temperature | -40°C ~ 85°C (TA) | 
| Package / Case | Surface Mount | 
| Supplier Device Package | 64-VFQFN Exposed Pad | 
| Base Part Number | 64-QFN (9x9) |