| Program Memory Type | Flash |
| Taxonomy | Microcontroller |
| Package Width (mm) | 7.6(Max) |
| Data Bus Width (bit) | 8 |
| Device Core | 8051 |
| Minimum Operating Temperature (°C) | 0 |
| Maximum Operating Temperature (°C) | 70 |
| Supplier Package | SOIC |
| No. of Timers | 2 |
| Instruction Set Architecture | CISC |
| Core Architecture | 8051 |
| Family Name | AT89 |
| Maximum Operating Supply Voltage (V) | 6 |
| Maximum Clock Rate (MHz) | 24 |
| Package Height (mm) | 2.35(Max) |
| Interface Type | UART |
| RAM Size | 128B |
| UART | 1 |
| CECC Qualified | No |
| Standard Package Name | SOIC |
| PCB | 20 |
| Pin Count | 20 |
| Mounting | Surface Mount |
| Package Length (mm) | 13(Max) |
| Lead Shape | Gull-wing |
| Number of I/Os | 15 |
| Program Memory Size | 2KB |
| Max. Speed (MHz) | 24 |
| Typical Operating Supply Voltage (V) | 5 |
| Programmability | Yes |
| Minimum Operating Supply Voltage (V) | 4 |
