32-bit ARM Cortex-M3 microcontroller featuring 256KB FLASH memory and 64KB RAM. Operates at up to 55MHz with 32 programmable I/Os and 5 timers/counters. Supports I2C, SPI, USB, UART, and USART interfaces. Includes peripherals such as DMA, PWM, and a watchdog timer. Surface mountable in a QFN package, operating from 1.65V to 3.6V, with a temperature range of -40°C to 85°C.
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Microchip AT91SAM7S256D-MU technical specifications.
| Package/Case | QFN |
| Core Architecture | ARM |
| Data Bus Width | 32b |
| Frequency | 55MHz |
| Interface | I2C, SPI, USB, UART, USART |
| Lead Free | Lead Free |
| Max Frequency | 55MHz |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 3.6V |
| Memory Size | 256KB |
| Memory Type | FLASH, |
| Min Supply Voltage | 1.65V |
| Mount | Surface Mount |
| Number of I/Os | 32 |
| Number of Programmable I/O | 32 |
| Number of Timers/Counters | 5 |
| Oscillator Type | Internal |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, DMA |
| Radiation Hardening | No |
| RAM Size | 64KB |
| RoHS Compliant | Yes |
| Series | SAM7S |
| Watchdog Timer | Yes |
| RoHS | Compliant |
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