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| Part Number | AT91M40400-25AI |
| Datasheet | AT91M40400-25AI datasheet |
| Description | IC MCU 16/32BIT ROMLESS 100TQFP |
| Manufacturer | Microchip Technology |
| Series | AT91SAM |
| Part Status | Obsolete |
| Core Processor | ARM7® |
| Core Size | 16/32-Bit |
| Speed | 25MHz |
| Connectivity | EBI/EMI, UART/USART |
| Peripherals | WDT |
| Number of I/O | 32 |
| Program Memory Size | - |
| Program Memory Type | ROMless |
| EEPROM Size | - |
| RAM Size | 4K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 3.6V |
| Data Converters | - |
| Oscillator Type | External |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | Surface Mount |
| Supplier Device Package | 100-TQFP |
| Base Part Number | 100-TQFP (14x14) |