| Название | Описание | Производитель | Корпус | Выводы | Темп. Диапазон | Файл PDF |
| AT89C51-16PA | 8-bit microcontroller with 4K bytes flash, 5V, 16MHz | ATMEL Corporation | PDIP | 40 | -40°C | 105°C | AT89C51-16PA datasheet (129K) |
| AT89C51-16PC | 8-bit microcontroller with 4K bytes flash, 5V, 16MHz | ATMEL Corporation | PDIP | 40 | 0°C | 70°C | AT89C51-16PC datasheet (129K) |
| AT89C51-16PI | 8-bit microcontroller with 4K bytes flash, 5V, 16MHz | ATMEL Corporation | PDIP | 40 | -40°C | 85°C | AT89C51-16PI datasheet (129K) |
| AT89C51-16QA | 8-bit microcontroller with 4K bytes flash, 5V, 16MHz | ATMEL Corporation | PQFP | 44 | -40°C | 105°C | AT89C51-16QA datasheet (129K) |
| AT89C51-16QC | 8-bit microcontroller with 4K bytes flash, 5V, 16MHz | ATMEL Corporation | PQFP | 44 | 0°C | 70°C | AT89C51-16QC datasheet (129K) |
| AT89C51-16QI | 8-bit microcontroller with 4K bytes flash, 5V, 16MHz | ATMEL Corporation | PQFP | 44 | -40°C | 85°C | AT89C51-16QI datasheet (129K) |
| AT89C51-20AC | 8-bit microcontroller with 4K bytes flash, 5V, 20MHz | ATMEL Corporation | TQFP | 44 | 0°C | 70°C | AT89C51-20AC datasheet (129K) |
| AT89C51-20AI | 8-bit microcontroller with 4K bytes flash, 5V, 20MHz | ATMEL Corporation | TQFP | 44 | -40°C | 85°C | AT89C51-20AI datasheet (129K) |
| AT89C51-20JC | 8-bit microcontroller with 4K bytes flash, 5V, 20MHz | ATMEL Corporation | PLCC | 44 | 0°C | 70°C | AT89C51-20JC datasheet (129K) |
| AT89C51-20JI | 8-bit microcontroller with 4K bytes flash, 5V, 20MHz | ATMEL Corporation | PLCC | 44 | -40°C | 85°C | AT89C51-20JI datasheet (129K) |
