AT89C2051-24SU kiểu chân SOIC-20
2.7-Volt, 80C31 Microcontroller with 2K bytes Flash.
| Parameter Name | Value |
| Program Memory Type | Flash |
| Program Memory (Kbytes) | 2 |
| F.Max (MHz) | 24 |
| RAM Bytes | 128 |
| Data EEPROM (bytes) | - |
| I/O PIN | 15 |
| UART | 1 |
| Temperature Range (C) | -40 to 85 |
| Operating Voltage Range (V) | 2.7 to 6 |
| Pin Count | 20 |

