Specifications
| Attribute | Value |
| Package | Tube |
| Series | W78 |
| ProductStatus | Obsolete |
| CoreProcessor | 8051 |
| CoreSize | 8-Bit |
| Speed | 40MHz |
| Connectivity | EBI/EMI, Serial Port |
| NumberofI/O | 40 |
| ProgramMemoryType | ROMless |
| RAMSize | 256 x 8 |
| Voltage-Supply(Vcc/Vdd) | 4.5V ~ 5.5V |
| OscillatorType | External |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 84-LCC |
