| AT89C2051-12PA | 8-bit microcontroller with 2Kbytes flash, 2.7V to 6.0V in 20-pin PDIP package. Operational temperature range from -40°C to 105°C. | Datasheet*) |
| AT89C2051-12PC | 8-bit microcontroller with 2Kbytes flash, 2.7V to 6.0V in 20-pin PDIP package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| AT89C2051-12PI | 8-bit microcontroller with 2Kbytes flash, 2.7V to 6.0V in 20-pin PDIP package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| AT89C2051-12SA | 8-bit microcontroller with 2Kbytes flash, 2.7V to 6.0V in 20-pin SOIC package. Operational temperature range from -40°C to 105°C. | Datasheet*) |
| AT89C2051-12SC | 8-bit microcontroller with 2Kbytes flash, 2.7V to 6.0V in 20-pin SOIC package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| AT89C2051-12SI | 8-bit microcontroller with 2Kbytes flash, 2.7V to 6.0V in 20-pin SOIC package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| AT89C2051-24PC | 8-bit microcontroller with 2Kbytes flash, 4.0V to 6.0V in 20-pin PDIP package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| AT89C2051-24PI | 8-bit microcontroller with 2Kbytes flash, 4.0V to 6.0V in 20-pin PDIP package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| AT89C2051-24SC | 8-bit microcontroller with 2Kbytes flash, 4.0V to 6.0V in 20-pin SOIC package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| AT89C2051-24SI | 8-bit microcontroller with 2Kbytes flash, 4.0V to 6.0V in 20-pin SOIC package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| AT89C2051-12PU | 2.7-Volt, 80C31 Microcontroller with 2K bytes Flash, 20-Pin Package | Datasheet*) |
| AT89C2051-12SU | 2.7-Volt, 80C31 Microcontroller with 2K bytes Flash, 20-Pin Package | Datasheet*) |
| AT89C2051-24PU | 2.7-Volt, 80C31 Microcontroller with 2K bytes Flash, 20-Pin Package | Datasheet*) |
| AT89C2051-24SU | 2.7-Volt, 80C31 Microcontroller with 2K bytes Flash, 20-Pin Package | Datasheet*) |
