PIC18F2431-I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC18F2431-I/SO is an 8-bit PIC18 microcontroller running at up to 40 MHz with integrated ADC and hardware PWM in a 28-pin SOIC package. Optimized for motor control with dedicated power-control PWM and fault-protection logic. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F2431-I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.4500(MOQ 1)
- 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/SO?
- 8-bit PIC18 core clocked at up to 40 MHz delivering fast instruction execution for time-critical motor-control algorithms
- Dedicated Power Control PWM (PCPWM) module with up to 8 channels enabling direct three-phase inverter drive
- Integrated multi-channel ADC for real-time current and speed sensing without external analog conversion hardware
- 28-pin SOIC package with RoHS-compliant lead-free construction and an 11-week factory lead time for predictable supply planning
What is PIC18F2431-I/SO used for?
The PIC18F2431-I/SO is purpose-built for brushless DC motor control, variable-speed AC drive, and power-conversion applications that demand a compact 8-bit controller with hardware PWM generation. Its PCPWM module and on-chip ADC allow direct closed-loop current control in 3-phase inverter designs without additional gate-driver ICs. The device also suits appliance motor controllers, HVAC fan drives, and industrial pump controls where a 28-pin SOIC footprint simplifies board layout and reduces BOM cost.
What are the specifications of PIC18F2431-I/SO?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 11Weeks |
| YTEOL | 8 |
| 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 | R-PDSO-G28 |
| 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 | 6 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 250 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 768 |
| ROM (words) | 16384 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 40MHz |
| Supply Current-Max | 15mA |
| 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 | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| ## PIC18F2431-I/SO Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Where can I find the PIC18F2431-I/SO datasheet?
PIC18F2431-I/SO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC18F2431-I/SO?
Compatible alternatives and drop-in replacements for PIC18F2431-I/SO:
Frequently Asked Questions
What maximum clock speed does the PIC18F2431-I/SO support and how does it benefit motor-control loops?
The PIC18F2431-I/SO supports a maximum clock frequency of 40 MHz. At this speed the PIC18 core can execute single-cycle instructions fast enough to run closed-loop current-control algorithms, update PWM duty-cycle registers, and service ADC conversion interrupts within the tight timing budgets demanded by high-speed brushless motor commutation sequences.
How many PWM channels does the PIC18F2431-I/SO provide for three-phase motor-drive designs?
The PIC18F2431-I/SO includes a dedicated Power Control PWM module with up to 8 output channels. This is sufficient to generate complementary gate signals for a full three-phase bridge inverter, including dead-time insertion and fault-shutdown logic, reducing external gate-driver complexity and PCB component count in variable-speed motor-drive applications.
Is the PIC18F2431-I/SO RoHS compliant, and what is the typical factory lead time?
Yes, the PIC18F2431-I/SO carries a Pb-free, RoHS-compliant designation. The factory lead time is approximately 11 weeks for standard orders. Designers building compliant motor-control products for EU and Asian markets should account for this lead time when planning production runs and maintaining safety stock levels.
For a compact motor-control PCB, how does the 28-pin SOIC package of the PIC18F2431-I/SO compare to a larger PDIP option?
The 28-pin SOIC package of the PIC18F2431-I/SO occupies roughly 10.5 mm x 7.5 mm of PCB area, significantly less than a 28-pin PDIP at 36 mm x 9.5 mm. The surface-mount SOIC footprint enables automated reflow assembly, tighter component placement around the power stage, and a thinner board stack-up suitable for enclosed motor-drive modules where height clearance is constrained.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.5575 | $5.56 |
| 100+ | $5.0900 | $509.00 |
| 1000+ | $4.6900 | $4690.00 |
| 5000+ | $4.4500 | $22250.00 |
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