PIC18F2431-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
PIC18F2431-I/ML is an 8-bit PIC18 microcontroller from Microchip with 16 KB flash, 768 bytes RAM, and 22 I/O pins in a QFN package. It runs at up to 40 MHz with an integrated ADC, PWM, and motor control peripherals. Available from stock worldwide with competitive pricing.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F2431-I/ML Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PIC18F2431-I/ML?
- 8-bit PIC18 core running at up to 40 MHz with 16 KB flash and 768 bytes RAM for motor control applications
- Integrated 10-bit ADC and dedicated power control PWM module supporting 3-phase brushless motor drive
- Compact QFN package with 22 I/O pins enabling space-efficient embedded designs
What is PIC18F2431-I/ML used for?
PIC18F2431-I/ML is optimized for motor control applications including BLDC motor drives, stepper motor controllers, and AC induction motor systems, thanks to its dedicated Power Control PWM module and 10-bit ADC. It is also used in industrial automation and embedded control applications requiring a balance of peripheral integration and processing throughput at 40 MHz. The compact QFN package suits space-constrained designs in appliance control, HVAC, and power tools.
What are the specifications of PIC18F2431-I/ML?
| Pbfree Code | Yes |
| YTEOL | 7.2 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC18 |
| Clock Frequency-Max | 40MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQCC-N28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 24 |
| Number of Serial I/Os | 1 |
| Number of Timers | 4 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC28,.24SQ,25 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 768 |
| ROM (words) | 16384 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 40MHz |
| Supply Current-Max | 250mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.2V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | 3A991.a.2 |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Thailand |
Where can I find the PIC18F2431-I/ML datasheet?
PIC18F2431-I/ML Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC18F2431-I/ML?
Compatible alternatives and drop-in replacements for PIC18F2431-I/ML:
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PQCC28
Frequently Asked Questions
What motor control peripherals does PIC18F2431-I/ML integrate and at what clock frequency do they operate?
PIC18F2431-I/ML includes a dedicated Power Control PWM module capable of generating 3-phase complementary PWM signals with dead-band control, and a 10-bit ADC with up to 13 channels for current and voltage sensing. These peripherals operate at the full 40 MHz core clock, enabling PWM frequencies above 100 kHz suitable for high-speed motor drive designs.
How much program memory and RAM does PIC18F2431-I/ML provide and is it sufficient for a PID motor controller?
PIC18F2431-I/ML provides 16 KB of flash program memory and 768 bytes of RAM. This is sufficient for a single-axis PID motor controller with lookup tables, communication stacks, and fault handling routines written in C. Designers targeting more complex multi-axis or FOC algorithms may need to migrate to the PIC18F4431 variant with 16 KB flash and additional I/O pins.
Which package does PIC18F2431-I/ML use and what board footprint does it require?
PIC18F2431-I/ML uses a 28-pin QFN (Quad Flat No-Lead) package with a 6 mm x 6 mm body and 0.65 mm pin pitch. This is significantly smaller than the equivalent SOIC-28 or PDIP-28 packages, reducing PCB area by approximately 60% and improving thermal dissipation through the exposed pad, which is important in motor drive designs with continuous switching currents.
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