| Property | Value |
| Package | DIL40 |
| Power Supply Voltage Range | 4.50V to 5.50V |
| Operating Temperature Range | -40°C to 85°C |
| Operating Current Range | 35mA |
| Standby Current | 2µA |
| UART number | 1 |
| Ports number | 4 |
| Compability | Standard 80C51 Products and 80C51Fx/Rx/Rx+ |
| I/O Ports number | 5 |
| Protocol compability | TWI |
| Bits number of the Architecture | 16Bits |
| Timers number | 3 |
| OTP Bytes number | 32768 |
| ElectroStatic Discharge (ESD) protection voltage | False |
| Memory Type | False |
| Interrupt Pins | False |
| Not Exist | False |