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| Part Number | AT91SAM7A2-AU | AT91SAM7A3-AU | AT91SAM7A1-AU |
|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Status | Obsolete | Obsolete | Obsolete |
| Core Processor | ARM7® | ARM7® | ARM7® |
| Core Size | 16/32-Bit | 16/32-Bit | 16/32-Bit |
| Speed | 30MHz | 60MHz | 40MHz |
| Connectivity | CANbus, EBI/EMI, SPI, UART/USART | CANbus, I²C, Memory Card, SPI, SSC, UART/USART | CANbus, EBI/EMI, SPI, UART/USART |
| Peripherals | POR, PWM, WDT | POR, PWM, WDT | POR, PWM, WDT |
| Number of I/O | 57 | 62 | 49 |
| Program Memory Size | - | 256KB (256K x 8) | - |
| Program Memory Type | ROMless | Flash | ROMless |
| EEPROM Size | - | - | - |
| RAM Size | 16K x 8 | 32K x 8 | 4K x 8 |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 3.6V | 1.65V ~ 1.95V | 3V ~ 3.6V |
| Data Converters | A/D 8x10b | A/D 8x10b | A/D 8x10b |
| Oscillator Type | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 176-LQFP | 100-LQFP | 144-LQFP |
| Supplier Device Package | 176-LQFP (24x24) | 100-LQFP (14x14) | 144-LQFP (20x20) |
