Характеристики
| Family/Series | C51/C251 Core Size: 8 bit No. of I/O's: 32 |
| Program Memory Size | 20 KB RAM Memory Size: 250Byte |
| CPU Speed | 24MHz Oscillator |
| Type | External, Internal No. of Timers: 3 |
AT89C55WD-24PUMicrochipMicrocontrollers
| Family/Series | C51/C251 Core Size: 8 bit No. of I/O's: 32 |
| Program Memory Size | 20 KB RAM Memory Size: 250Byte |
| CPU Speed | 24MHz Oscillator |
| Type | External, Internal No. of Timers: 3 |