Thông số kỹ thuật
| thuộc tính | Giá trị |
| Supplier | Microchip Technology |
| Package / Case | Tube |
| Series | 89C |
| Part Status | Obsolete |
| Core Processor | 80C51 |
| Core Size | 8-Bit |
| Speed | 33MHz |
| Connectivity | UART/USART |
| Number of I/O | 32 |
| Program Memory Size | 4KB (4K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 128 x 8 |
| Voltage - Supply (Vcc/Vdd) | 4V ~ 6V |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole |
