| 型号 | Max. Operating Frequency | 32kHz RTC | Calibrated RC Oscillator | UART | Timers | SPI |
|---|---|---|---|---|---|---|
| ATSAM3S1AA-MU | 64 MHz | Yes | Yes | 3 | 3 | 2 |
| ATSAM3S1BA-AU | 64 MHz | Yes | Yes | 4 | 3 | 3 |
| ATSAM3S1BA-MU | 64 MHz | Yes | Yes | 4 | 3 | 3 |
| ATSAM3S1CA-AU | 64 MHz | Yes | Yes | 4 | 6 | 3 |
| ATSAM3S1CA-CU | 64 MHz | Yes | Yes | 4 | 6 | 3 |
| ATSAM3S2AA-AU | 64 MHz | Yes | Yes | 3 | 3 | 2 |
| ATSAM3S2AA-MU | 64 MHz | Yes | Yes | 3 | 3 | 2 |
| ATSAM3S2BA-AU | 64 MHz | Yes | Yes | 4 | 3 | 3 |
| ATSAM3S2BA-MU | 64 MHz | Yes | Yes | 4 | 3 | 3 |
| ATSAM3S2CA-AU | 64 MHz | Yes | Yes | 4 | 6 | 3 |
| ATSAM3S2CA-CU | 64 MHz | Yes | Yes | 4 | 6 | 3 |
| ATSAM3S4AA-AU | 64 MHz | Yes | Yes | 3 | 3 | 3 |
| ATSAM3S4AA-MU | 64 MHz | Yes | Yes | 3 | 3 | 3 |
| ATSAM3S4BA-AU | 64 MHz | Yes | Yes | 4 | 3 | 3 |
| ATSAM3S4BA-MU | 64 MHz | Yes | Yes | 4 | 3 | 3 |
| ATSAM3S4CA-AU | 64 MHz | Yes | Yes | 4 | 6 | 3 |
| ATSAM3S4CA-CU | 64 MHz | Yes | Yes | 4 | 6 | 3 |
| ATSAM3U1CA-AU | 96 MHz | Yes | Yes | 4 | 3 | 4 |
| ATSAM3U1CA-CU | 96 MHz | Yes | Yes | 4 | 3 | 4 |
| ATSAM3U1EA-AU | 96 MHz | Yes | Yes | 5 | 3 | 5 |
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