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| Part Number | ATSAM3U1EB-AU | ATSAM3U1EB-CU | ATSAM3U1CB-AU | ATSAM3U1EA-AU |
|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Atmel |
| Product Status | Active | Active | Active | Obsolete |
| Core Processor | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| Speed | 96MHz | 96MHz | 96MHz | 96MHz |
| Connectivity | EBI/EMI, I²C, Memory Card, SPI, SSC, UART/USART, USB | EBI/EMI, I²C, Memory Card, SPI, SSC, UART/USART, USB | EBI/EMI, I²C, Memory Card, SPI, SSC, UART/USART, USB | EBI/EMI, I²C, Memory Card, SPI, SSC, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT | Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT |
| Number of I/O | 96 | 96 | 57 | 96 |
| Program Memory Size | 64KB (64K x 8) | 64KB (64K x 8) | 64KB (64K x 8) | 64KB (64K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - |
| RAM Size | 20K x 8 | 20K x 8 | 20K x 8 | 20K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V | 1.62V ~ 3.6V |
| Data Converters | A/D 8x10b, 8x12b | A/D 8x10b, 8x12b | A/D 4x10b, 4x12b | A/D 8x10b, 8x12b |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 144-LQFP | 144-LFBGA | 100-LQFP | 144-LQFP |
| Supplier Device Package | 144-LQFP (20x20) | 144-BGA (13x13) | 100-LQFP (14x14) | 144-LQFP (20x20) |
