| MPN | MFG | Qty | PKG | D/C | SELECT |
| AT89C52-20PC | ATMEL | 190 | DIP40 | ||
| AT89C5224JC | ATMEL | 260 | PLCC44 | ||
| AT89C52-24PI | ATMEL | 164 | DIP40 | ||
| AT89C55-24PI | ATMEL | 40 | DIP | ||
| AT89C55WD-24AU | ATMEL | 285 | QFP44 | ||
| AT89C55WD-33JC | ATMEL | 359 | PLCC44 | ||
| AT89LP2052-16PU | ATMEL | 583 | DIP-20 | ||
| AT89LP2052-20SU | ATMEL | 169 | SOP20 | ||
| AT89LP216-20XU | ATMEL | 750 | SSOP-16 | ||
| AT89LP4052-16XU | ATMEL | 1398 | SSOP-20 | ||
| AT89LP6440-20JU | ATMEL | 316 | PLCC | ||
| AT89LS8252-12AC | ATMEL | 275 | QFP44 | ||
| AT89LV52-12AC | ATMEL | 5000 | QFP44 | ||
| AT89LV52-12PI | AT | 400 | DIP | ||
| AT89S2051-24PI | AT | 680 | DIP | ||
| AT89S51-24JC | ATMEL | 151 | PLCC | ||
| AT89S51-24PU | AT | 44 | DIP40 | ||
| AT89S53-24JC | ATMEL | 200 | PLCC | ||
| AT89S58-SLSUM | ATMEL | 972 | PLCC44 | ||
| AT89S8252-24PC | ATMEL | 34 | DIP |