| PartNumber | PIC18F4439-E/ML | PIC18F4439-E/PT | PIC18F4439-E/P |
| Description | 8-bit Microcontrollers - MCU 12KB 640 RAM 32 I/O | 8-bit Microcontrollers - MCU 12KB 640 RAM 32 I/O | IC MCU 8BIT 12KB FLASH 40DIP |
| Manufacturer | Microchip | Microchip | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | QFN-44 | TQFP-44 | - |
| Series | PIC18(L)Fxx39 | PIC18(L)Fxx39 | - |
| Core | PIC | PIC | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 40 MHz | 40 MHz | - |
| Program Memory Size | 12 kB | 12 kB | - |
| Data RAM Size | 640 B | 640 B | - |
| ADC Resolution | 10 bit | 10 bit | - |
| Number of I/Os | 32 I/O | 32 I/O | - |
| Operating Supply Voltage | 2 V to 5.5 V | 2 V to 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Packaging | Tube | Tray | - |
| Height | 0.88 mm | 1 mm | - |
| Length | 8 mm | 10 mm | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | Flash | - |
| Width | 8 mm | 10 mm | - |
| Brand | Microchip Technology | Microchip Technology | - |
| Data ROM Size | 256 B | 256 B | - |
| Data ROM Type | EEPROM | EEPROM | - |
| Interface Type | AUSART, I2C, SPI | AUSART, I2C, SPI | - |
| Number of ADC Channels | 8 | 8 | - |
| Number of Timers/Counters | 16 Timer | 16 Timer | - |
| Processor Series | PIC18 | PIC18 | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 45 | 160 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 4.2 V | 4.2 V | - |
| Tradename | PIC | PIC | - |
| Unit Weight | 0.013051 oz | - | - |
| Moisture Sensitive | - | Yes | - |