PIC18F4420-I/PT Microchip Integrated Circuit (Quad Flat Packages) In Stock
The PIC18F4420-I/PT is an 8-bit Flash microcontroller from Microchip running at up to 40 MHz in a TQFP-44 package, integrating a 10-bit ADC, hardware USART, SPI, and I2C peripherals with 16 KB of program memory and 768 bytes of SRAM. It targets cost-sensitive industrial sensors, consumer gadgets, and embedded control applications.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F4420-I/PT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.0600(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC18 core at up to 40 MHz for 10 MIPS throughput
- 16 KB Flash program memory with self-programming capability
- 10-bit ADC with up to 13 channels for analog measurement
- 44-pin TQFP package enabling compact PCB layouts
- Integrated USART, SPI, and I2C for multi-protocol connectivity
Applications
The PIC18F4420-I/PT is commonly deployed in industrial sensor nodes, HVAC controllers, and small motor drive systems that need reliable 8-bit processing with a rich peripheral set. Its 40 MHz PIC18 architecture and multi-channel ADC also make it a practical choice for handheld test instruments and white-goods appliance control boards.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TQFP-44 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| 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-PQFP-G44 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 36 |
| 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 | TQFP44,.39SQ,31 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 768 |
| ROM (words) | 16384 |
| ROM Programmability | FLASH |
| Speed | 40MHz |
| Supply Current-Max | 3.5mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.8mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC18F4420-I/PT:
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PQFP44
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PQFP44
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PQFP44
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PQFP44
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PQFP44
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PQFP44
Frequently Asked Questions
How many analog input channels does PIC18F4420-I/PT support for multi-sensor data acquisition?
The PIC18F4420-I/PT includes a 10-bit ADC with up to 13 analog input channels, allowing simultaneous monitoring of multiple sensors such as temperature, pressure, and current transducers in a single 44-pin TQFP design.
At 40 MHz, what real-time control tasks can the PIC18F4420-I/PT handle within a 25 µs interrupt latency budget?
Running at 40 MHz with a 4-clock instruction cycle, the PIC18F4420-I/PT executes 10 MIPS, enabling proportional-integral control loops, PWM generation, and serial framing within a 25 µs window — sufficient for stepper motor step-dir processing and sensor polling at 1 kHz rates.
Is PIC18F4420-I/PT a pin-compatible alternative to PIC18F4520-I/PT for designs with tighter Flash budgets?
Both parts share the same TQFP-44 footprint and peripheral set. PIC18F4520-I/PT provides 32 KB of Flash versus 16 KB on PIC18F4420-I/PT. If 16 KB is sufficient for the firmware, the 4420 variant typically offers a cost advantage without requiring board changes.
What lead time and lifecycle status should procurement teams plan for when sourcing PIC18F4420-I/PT?
Microchip lists a typical factory lead time of 6 weeks for PIC18F4420-I/PT, with an estimated years-to-end-of-life (YTEOL) of 9 years, making it a low-lifecycle-risk choice for designs requiring multi-year production runs sourced in 44-pin TQFP tape-and-reel format.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.6500 | $5.65 |
| 25+ | $5.6200 | $140.50 |
| 50+ | $5.5900 | $279.50 |
| 100+ | $4.6400 | $464.00 |
| 1000+ | $4.2600 | $4260.00 |
| 5000+ | $4.0600 | $20300.00 |
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