PIC18F66K80 - Microcontroller Microchip - Free user manual and instructions
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| Product Type | Microcontroller |
| Manufacturer | Microchip Technology |
| Model | PIC18F66K80 |
| Architecture | 8-bit PIC18 |
| Flash Memory | 64 KB |
| RAM | 3.6 KB |
| EEPROM | 1 KB |
| Maximum Clock Speed | 64 MHz |
| Digital I/O Pins | 35 |
| Analog Inputs | 9 channels (10-bit ADC) |
| Communication Interfaces | CAN, SPI, I²C, UART, EUSART |
| Operating Voltage | 2.0 V to 5.5 V |
| Operating Temperature | -40°C to +85°C (industrial) |
| Package Type | TQFP-44, QFN-44 |
| Dimensions (TQFP) | 10 mm x 10 mm x 1 mm |
| Weight (TQFP) | Approx. 0.5 g |
| Power Consumption (active) | Typ. 3 mA at 64 MHz, 3.3V |
| Main Functions | High-performance RISC CPU, CAN bus, PWM, comparator, watchdog timer |
| Maintenance | Handle with ESD precautions; no user-serviceable parts |
| Safety | Use appropriate ESD protection; avoid static discharge |
| Spare Parts & Repairability | Not repairable; replace entire unit if defective |
| General Information | Part of Microchip's K80 family with integrated CAN module |
Frequently Asked Questions - PIC18F66K80 Microchip
What programming language is used for the PIC18F66K80?
The PIC18F66K80 is typically programmed in C or Assembly using MPLAB X IDE and an appropriate programmer like PICKit 3/4 or ICD 4.
What is the maximum operating frequency?
The maximum operating frequency is 64 MHz with an external oscillator, or up to 16 MIPS (million instructions per second) using internal oscillator.
Does the PIC18F66K80 have a built-in CAN module?
Yes, it features an integrated Enhanced CAN (ECAN) module supporting CAN 2.0B protocol.
What is the supply voltage range?
The operating voltage range is 2.0V to 5.5V, making it suitable for both 3.3V and 5V systems.
How many I/O pins are available?
Depending on the package, the device offers up to 35 digital I/O pins (some multiplexed with analog functions).
Can I use this microcontroller for battery-powered applications?
Yes, it has multiple power-saving modes (Sleep, Idle) with low power consumption, down to nanoWatt levels in deep sleep.
What development tools are recommended?
Microchip recommends MPLAB X IDE (free) and the XC8 C compiler. Programmers include PICKit 4, ICD 5, or Snap.
What is the on-chip memory size?
It has 64 KB Flash, 3.6 KB RAM, and 1 KB EEPROM for data storage.
Is the PIC18F66K80 still in production?
Yes, Microchip continues to produce this device, and it is widely available from distributors. Check the Microchip website for lifecycle status.
Where can I find the complete datasheet and application notes?
The complete datasheet (DS39933) and application notes are available for free download on Microchip's website.
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