AT89C55WD-24JU MCU 8-bit 8051 CISC 20KB Flash 5V 44-Pin PLCC Tube
From MICROCHIP TECHNOLOGY
| # I/Os (Max) | 32 |
| Clock Freq | 24(MHz) |
| Cpu Family | AT89 |
| Device Core | 8051 |
| Device Core Size | 8(b) |
| Frequency | 24(MHz) |
| Instruction Set Architecture | CISC |
| Interface Type | UART |
| Maximum Expanded Memory Size | 64KB |
| Mounting | Surface Mount |
| Number of Timers - General Purpose | 3 |
| Operating Supply Voltage (Max) | 5.5(V) |
| Operating Supply Voltage (Min) | 4.5(V) |
| Operating Supply Voltage (Typ) | 5(V) |
| Operating Temp Range | -40C to 85C |
| Operating Temperature (Max) | 85C |
| Operating Temperature (Min) | -40C |
| Operating Temperature Classification | Industrial |
| Package Type | PLCC |
| Packaging | Rail/Tube |
| Pin Count | 44 |
| Program Memory Size | 20KB(kB) |
| Program Memory Type | Flash |
| Programmable | Yes |
| Rad Hardened | No |
| Total Internal Ram Size | 256B(kB) |
