PIC18F 8-bit Microcontroller Variants
Microchip PIC18F MCUs provide higher-end 8-bit control with larger Flash options, richer serial interfaces, USB or CAN on selected parts, and broad industrial package coverage.
High-feature 8-bit PIC controllers for larger embedded tasks
Compare PIC18F devices by memory, package, peripheral mix, pin count, and interface requirements.
The PIC18F family sits above the smaller PIC16 range in Microchip's 8-bit portfolio. It is used when a design still benefits from 8-bit simplicity but needs more code space, stronger peripheral integration, or interface options such as USB, CAN, multiple UART/SPI/I2C ports, advanced PWM, or larger pin-count packages. The devices grouped here include compact Q-series controllers, classic K-series parts, and high pin-count variants for I/O-heavy boards.
PIC18F is common in industrial modules, user-interface panels, power controllers, small motor systems, instrumentation, and embedded products that already have PIC firmware assets. Many variants provide Flash memory from modest sizes into larger 64 KB and higher classes, with RAM, EEPROM on selected devices, 10-bit or 12-bit ADCs, timers, comparators, capture/compare/PWM modules, and low-power operating modes. Package choices include DIP for development and serviceable designs plus SOIC, SSOP, VQFN, TQFP, and UQFN for production.
Because the PIC18F catalog spans several generations, the exact suffix matters. Confirm enhanced instruction support, oscillator block, programming/debug interface, peripheral pin select, analog pin map, USB/CAN availability, and temperature grade. Octatronics consolidates PIC18F ordering variants so engineering can evaluate compatible functions while procurement checks supply and alternate package options.
Key Features
- More memory and interface options than many smaller 8-bit MCU groups
- Suitable for established PIC firmware platforms and long-life embedded products
- USB, CAN, advanced PWM, and peripheral pin select available on selected variants
- Wide package range from through-hole DIP to compact QFN and high pin-count TQFP
- Good fit when 32-bit complexity is unnecessary but peripheral coverage is important
Target Applications
- Industrial control panels and I/O boards
- USB-connected embedded devices
- Small motor and power-control products
- Instrumentation and data acquisition nodes
- Legacy product refreshes using existing PIC firmware
Ordering Variants
Compare 496 PIC18F part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| PIC18F04Q20 | | Official Price: 0.6700 | Official Product URL: http://www.microchip.com/en-us/product/PIC18F04Q20 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F04Q40 | | Official Price: 0.6900 | Official Product URL: http://www.microchip.com/en-us/product/PIC18F04Q40 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F04Q41 | | Official Price: 0.7400 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F04Q41 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F05Q20 | | Official Price: 0.7000 | Official Product URL: http://www.microchip.com/en-us/product/PIC18F05Q20 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F05Q40 | | Official Price: 0.7400 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F05Q40 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F05Q41 | | Official Price: 0.8000 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F05Q41 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F06Q20 | | Official Price: 0.7800 | Official Product URL: http://www.microchip.com/en-us/product/PIC18F06Q20 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F06Q40 | | Official Price: 0.8400 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F06Q40 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F06Q41 | | Official Price: 0.9000 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F06Q41 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F13K22 | | Official Price: 1.5100 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F13K22 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F13K50 | | Official Price: 1.8100 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F13K50 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F14K22 | | Official Price: 1.6300 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F14K22 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F14K50 | | Official Price: 1.9800 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F14K50 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F14Q20 | | Official Price: 0.6500 | Official Product URL: http://www.microchip.com/en-us/product/PIC18F14Q20 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F14Q40 | | Official Price: 0.7300 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F14Q40 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F14Q41 | | Official Price: 0.7800 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F14Q41 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F15Q20 | | Official Price: 0.7000 | Official Product URL: http://www.microchip.com/en-us/product/PIC18F15Q20 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F15Q40 | | Official Price: 0.7800 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F15Q40 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F15Q41 | | Official Price: 0.8400 | Official Product URL: https://www.microchip.com/en-us/product/PIC18F15Q41 | - | Microchip Technology | Active | Compliant | In Stock | |
| PIC18F16Q20 | | Official Price: 0.8000 | Official Product URL: http://www.microchip.com/en-us/product/PIC18F16Q20 | - | Microchip Technology | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on PIC18F map to package, grade, and reel options.
[{"code":"PIC18FxxK / xxQ","meaning":"Subfamilies with different peripheral generations, memory maps, and power behavior. Treat them as related but not automatically interchangeable."},{"code":"USB or CAN capable variants","meaning":"Only selected PIC18F devices include these interfaces; verify the exact part and pinout."},{"code":"I, E, LF markers","meaning":"Often indicate temperature or low-voltage variants depending on the exact Microchip ordering code."},{"code":"SO, SS, ML, PT, P suffixes","meaning":"Package indicators such as SOIC, SSOP, QFN, TQFP, or DIP."}]
How to Choose the Right PIC18F Microcontrollers
Protect firmware compatibility
Check compiler target, configuration bits, memory map, interrupt behavior, and peripheral registers when moving between PIC18F generations.
Prioritize interface needs
USB, CAN, multiple serial ports, and advanced PWM are not universal across the family.
Review package pinout
Pin-compatible packages can still differ in analog channels, PPS routing, oscillator pins, or programming pins.
Technical Specifications
Core parameters for PIC18F product family
Source PIC18F with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 496 ordering variants from Microchip Technology. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the PIC18F product family.