 |  | | |
| PartNumber | W78C438C40FL | W78C438C40PL | W78C438CF-24 |
| Description | IC MCU 8BIT ROMLESS 100QFP | IC MCU 8BIT ROMLESS 84PLCC | |
| Manufacturer | WINBOND | Nuvoton Technology Corporation of America | - |
| Product Category | Embedded - Microcontrollers | Embedded - Microcontrollers | - |
| Series | W78 | W78 | - |
| Packaging | Tray | Tube | - |
| Package Case | 100-QFP | 84-PLCC | - |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | - |
| Supplier Device Package | * | * | - |
| Number of I O | 40 | 40 | - |
| Speed | 40MHz | 40MHz | - |
| EEPROM Size | - | - | - |
| Core Processor | 8051 | 8051 | - |
| RAM Size | 256 x 8 | 256 x 8 | - |
| Program Memory Type | ROMless | ROMless | - |
| Peripherals | - | - | - |
| Connectivity | EBI/EMI, Serial Port | EBI/EMI, Serial Port | - |
| Voltage Supply Vcc Vdd | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | - |
| Core Size | 8-Bit | 8-Bit | - |
| Program Memory Size | - | - | - |
| Data Converters | - | - | - |
| Oscillator Type | External | External | - |