| 型号 | SRAM (Kbytes) | Calibrated RC Oscillator | DAC Resolution (bits) | UART | Flash (Kbytes) | SPI |
|---|---|---|---|---|---|---|
| AT32UC3B0256-A2UR | 32 | Yes | 0 | 3 | 256 Kbytes | 4 |
| AT32UC3B0256-A2UT | 32 | Yes | 0 | 3 | 256 Kbytes | 4 |
| AT32UC3B0256-Z2UR | 32 | Yes | 0 | 3 | 256 Kbytes | 4 |
| AT32UC3B0256-Z2UT | 32 | Yes | 0 | 3 | 256 Kbytes | 4 |
| AT32UC3B0512-A2UR | 96 | Yes | 16 | 3 | 512 Kbytes | 4 |
| AT32UC3B0512-A2UT | 96 | Yes | 16 | 3 | 512 Kbytes | 4 |
| AT32UC3B0512-Z2UR | 96 | Yes | 16 | 3 | 512 Kbytes | 4 |
| AT32UC3B0512-Z2UT | 96 | Yes | 16 | 3 | 512 Kbytes | 4 |
| AT32UC3B064-A2UR | 16 | Yes | 0 | 3 | 64 Kbytes | 4 |
| AT32UC3B064-A2UT | 16 | Yes | 0 | 3 | 64 Kbytes | 4 |
| AT32UC3B064-Z2UR | 16 | Yes | 0 | 3 | 64 Kbytes | 4 |
| AT32UC3B064-Z2UT | 16 | Yes | 0 | 3 | 64 Kbytes | 4 |
| AT32UC3B1128-AUR | 32 | Yes | 0 | 2 | 128 Kbytes | 3 |
| AT32UC3B1128-AUT | 32 | Yes | 0 | 2 | 128 Kbytes | 3 |
| AT32UC3B1128-Z1UR | 32 | Yes | 0 | 2 | 128 Kbytes | 3 |
| AT32UC3B1128-Z1UT | 32 | Yes | 0 | 2 | 128 Kbytes | 3 |
| AT32UC3B1256-AUR | 32 | Yes | 0 | 2 | 256 Kbytes | 3 |
| AT32UC3B1256-AUT | 32 | Yes | 0 | 2 | 256 Kbytes | 3 |
| AT32UC3B1256-Z1UR | 32 | Yes | 0 | 2 | 256 Kbytes | 3 |
| AT32UC3B1256-Z1UT | 32 | Yes | 0 | 2 | 256 Kbytes | 3 |
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