| Part Number | AT91M55800-33AI | AT91M55800A-33AI |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers |
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| Product Status | Obsolete | Obsolete |
| Core Processor | ARM7® | ARM7® |
| Core Size | 16/32-Bit | 16/32-Bit |
| Speed | 33MHz | 33MHz |
| Connectivity | EBI/EMI, SPI, UART/USART | EBI/EMI, SPI, UART/USART |
| Peripherals | POR, WDT | POR, WDT |
| Number of I/O | 58 | 58 |
| Program Memory Size | - | - |
| Program Memory Type | ROMless | ROMless |
| EEPROM Size | - | - |
| RAM Size | 8K x 8 | 8K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 3.6V | 2.7V ~ 3.6V |
| Data Converters | A/D 8x10b; D/A 2x10b | A/D 8x10b; D/A 2x10b |
| Oscillator Type | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 176-LQFP | 176-LQFP |
| Supplier Device Package | 176-TQFP (24x24) | 176-TQFP (24x24) |