| PartNumber | PIC18F66K40-I/MR | PIC18F66K40-E/MR | PIC18F66K40-E/PT |
| Description | 8-bit Microcontrollers - MCU 64KB Flash, 4KB RAM, 256B EEPROM, 10b ADC2, 5b DAC, Comp, PWM, CCP, CWG, HLT, WWDT, SCAN/CRC, ZCD, PPS, EUSART, SPI/I2C, IDLE/DOZE/PMD | 8-bit Microcontrollers - MCU 64KB Flash, 4KB RAM, 256B EEPROM, 10b ADC2, 5b DAC, Comp, PWM, CCP, CWG, HLT, WWDT, SCAN/CRC, ZCD, PPS, EUSART, SPI/I2C, IDLE/DOZE/PMD | 8-bit Microcontrollers - MCU 64KB Flash, 4KB RAM, 256B EEPROM, 10b ADC2, 5b DAC, Comp, PWM, CCP, CWG, HLT, WWDT, SCAN/CRC, ZCD, PPS, EUSART, SPI/I2C, IDLE/DOZE/PMD |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | - | SMD/SMT |
| Package / Case | QFN-64 | QFN-64 | TQFP-64 |
| Series | PIC18(L)F6xK40 | PIC18(L)F6xK40 | PIC18(L)F6xK40 |
| Core | PIC | - | PIC |
| Data Bus Width | 8 bit | - | 8 bit |
| Maximum Clock Frequency | 64 MHz | - | 64 MHz |
| Program Memory Size | 64 kB | - | 64 kB |
| Data RAM Size | 3.47 kB | - | 3.5 kB |
| ADC Resolution | 10 bit | - | 10 bit |
| Number of I/Os | 60 I/O | - | 60 I/O |
| Operating Supply Voltage | 2.3 V to 5.5 V | - | 5.5 V |
| Minimum Operating Temperature | - 40 C | - | - 40 C |
| Maximum Operating Temperature | + 85 C | - | + 125 C |
| Packaging | Tube | Tube | Tray |
| Product | MCU | - | MCU |
| Program Memory Type | Flash | - | Flash |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Data RAM Type | SRAM | - | SRAM |
| Data ROM Size | 1024 B | - | - |
| Data ROM Type | EEPROM | - | - |
| Interface Type | I2C, EUSART, SPI | - | I2C, SPI |
| DAC Resolution | 5 bit | - | 5 bit |
| Number of ADC Channels | 45 Channel | - | 45 Channel |
| Number of Timers/Counters | 5 X 16 bit | - | 4 x 8 bit, 5 x 16 bit |
| Processor Series | PIC18F6xK40 | - | PIC18 |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 40 | 40 | 160 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | - | 5.5 V |
| Supply Voltage Min | 2.3 V | - | 2.3 V |
| Tradename | PIC | PIC | PIC |
| Watchdog Timers | Watchdog Timer | - | Watchdog Timer, Windowed |
| Unit Weight | 0.009524 oz | - | - |
| I/O Voltage | - | - | 5.5 V |