32-bit ARM Cortex-M3 microcontroller featuring 256KB FLASH memory and 52KB RAM. Operates at up to 96MHz with a 32-bit address and data bus. Offers extensive I/O with 57 pins and interfaces including I2C, SPI, USB, and UART. Includes 4 ADC channels, 4 PWM channels, and integrated peripherals like DMA and WDT. Packaged in a 100-pin LQFP for surface mounting, with an operating temperature range of -40°C to 85°C.
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Microchip ATSAM3U4CA-AU technical specifications.
| Address Bus Width | 32b |
| Package/Case | LQFP |
| Core Architecture | ARM |
| Data Bus Width | 32b |
| Frequency | 96MHz |
| Height | 1.45mm |
| Interface | I2C, SPI, USB, UART, USART, EBI/EMI |
| Lead Free | Lead Free |
| Length | 14mm |
| Max Frequency | 96MHz |
| Max Operating Temperature | 85°C |
| Max Supply Voltage | 3.6V |
| Memory Size | 256KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Min Supply Voltage | 1.62V |
| Mount | Surface Mount |
| Number of ADC Channels | 4 |
| Number of I/Os | 57 |
| Number of I2C Channels | 1 |
| Number of PWM Channels | 4 |
| Number of SPI Channels | 4 |
| Number of Timers/Counters | 1 |
| Number of UART Channels | 1 |
| Oscillator Type | Internal |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, DMA |
| RAM Size | 52KB |
| Reach SVHC Compliant | No |
| RoHS Compliant | Yes |
| Series | SAM3U |
| Watchdog Timer | Yes |
| Width | 14mm |
| RoHS | Compliant |
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