| 芯片型号 | Interface Type | Flash (Kbytes) | Mask ROM (Kbytes) | F.max (MHz) | Vcc (V) | ISP | 封装 | 绿色封装 |
| AT83C21GC | Serial | - | - | - | 2.85-5.4 | - | SSOP 24 | MLF 32 SSOP 24 |
| AT83C22OK | USB | - | - | - | 3.6-5.5 | - | LQFP 64 | |
| AT83C23OK | USB | - | - | - | 3.6-5.5 | - | LQFP 32 Plastic J-Lead 28 | |
| AT83C24 | - | - | - | 48 | 2.85-5.5 | - | QFN 28 Narrow SOIC 28 | QFN 28 Narrow SOIC 28 |
| AT83C25OK | PCMCIA | - | - | - | 3.6-5.5 | - | LQFP 64 | |
| AT83C26 | - | - | - | 48 | 3-5.5 | - | MLF 48 LQFP 48 | |
| AT83C5121, T83C5121 | Serial | - | 16 | 16 | 2.85-5.5 | - | Plastic J-Lead 52 SSOP 24 | Plastic J-Lead 52 MLF 32 SSOP 24 |
| AT83C5122 | USB | - | 32 | 16 | 3.6-5.5 | - | LQFP 64 Plastic J-Lead 28 | LQFP 64 Plastic J-Lead 28 |
| AT83C5123 | USB | - | 30 | 24 | 3.6-5.5 | - | LQFP 32 Plastic J-Lead 28 | LQFP 32 Plastic J-Lead 28 |
| AT83C5127 | USB | - | 16 | 16 | 4.5-5.5 | - | LQFP 32 | LQFP 32 |
| AT83EC5122 | USB | - | 32 | 16 | 3.6-5.5 | - | LQFP 64 Plastic J-Lead 28 | LQFP 64 Plastic J-Lead 28 |
| AT83EC5123 | USB | - | 30 | 24 | 3.6-5.5 | - | LQFP 32 Plastic J-Lead 28 | LQFP 32 Plastic J-Lead 28 |
| AT85C5121, T85C5121 | Serial | - | - | 16 | 2.85-5.5 | - | Plastic J-Lead 52 SSOP 24 | Plastic J-Lead 52 SSOP 24 |
| AT85C5122 | USB | 32 | - | 16 | 3.6-5.5 | - | LQFP 64 Plastic J-Lead 28 | LQFP 64 Plastic J-Lead 28 |
| AT85EC5122 | USB | 32 | - | 16 | 3.6-5.5 | - | LQFP 64 Plastic J-Lead 28 | LQFP 64 Plastic J-Lead 28 |
| AT89C5121, T89C5121 | Serial | 16 | - | 16 | 2.85-5.5 | Yes | Plastic J-Lead 52 SSOP 24 | Plastic J-Lead 52 SSOP 24 |
| AT89C5122 | USB | 32 | - | 16 | 3.0-5.5 | Yes | LQFP 64 Plastic J-Lead 28 | LQFP 64 Plastic J-Lead 28 |