PIC18F4423-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The PIC18F4423-I/P is an 8-bit PIC18 microcontroller from Microchip with ADC, running at up to 40 MHz and operating from as low as 2 V at 4 MHz in a 40-pin DIP package. It integrates multiple serial interfaces and analog inputs for general-purpose embedded control. Globally stocked for through-hole prototyping, it suits data acquisition, industrial control, and human-machine interface applications.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- PIC18F4423-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.7700(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 high-speed embedded control and communication tasks
- Integrated ADC with multiple channels for direct analog sensor signal acquisition
- Ultra-low minimum supply of 2 V at 4 MHz enables battery and energy-harvesting operation
- 40-pin DIP package supports breadboard prototyping and through-hole PCB assembly
- Multiple serial interfaces including SPI, I2C, and UART for peripheral connectivity
- RoHS-compliant lead-free packaging for global regulatory compliance
Applications
The PIC18F4423-I/P is widely used in industrial control panels, data loggers, and laboratory instruments requiring an 8-bit microcontroller with rich analog and serial peripheral integration. Its wide supply range from 2 V to 5.5 V accommodates both battery-powered portable equipment and 5 V bench instruments, making it a versatile choice across product lines. The 40-pin DIP format remains popular for academic lab kits, maker projects, and low-volume prototypes where socketed through-hole components simplify rework and replacement.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-40 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 2V MIN SUPPLY @ 4MHZ |
| 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-PDIP-T40 |
| JESD-609 Code | e3 |
| Low Power Mode | NO |
| Number of External Interrupts | 3 |
| Number of I/O Lines | 36 |
| Number of Serial I/Os | 1 |
| Number of Timers | 4 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP40,.6 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| 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 | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC18F4423-I/P:
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PQFP44
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PDIP40
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PDIP40
RISC Microcontroller, 8-Bit, FLASH, PIC18 CPU, 40MHz, CMOS, PDIP40
Frequently Asked Questions
At what minimum supply voltage can PIC18F4423-I/P operate, and what clock frequency does it support at that low supply?
The PIC18F4423-I/P is specified to operate at a minimum supply voltage of 2 V, at which it supports a clock frequency up to 4 MHz. At the full 5.5 V maximum supply, the core runs at 40 MHz. This wide voltage-frequency range makes it suitable for both coin-cell-powered remote sensors running at low speed and 5 V industrial control boards requiring full 40 MHz throughput.
How many ADC channels does PIC18F4423-I/P provide, and what resolution do they offer for sensor signal conditioning?
The PIC18F4423-I/P integrates a 10-bit ADC with up to 13 multiplexed analog input channels in the 40-pin PDIP package. The 10-bit resolution yields 1024 discrete output codes, providing approximately 4.88 mV resolution per step at 5 V reference. This is sufficient for most resistive sensors, thermistors, potentiometers, and analog output transducers used in industrial and consumer embedded applications.
For a new design where board space is critical, is there a surface-mount alternative to PIC18F4423-I/P with the same core features?
Yes. Microchip offers the PIC18F4423 in surface-mount packages such as the 44-pin TQFP, which shares the same 8-bit PIC18 core, 40 MHz clock, 10-bit ADC, and serial peripheral set as PIC18F4423-I/P. The TQFP-44 footprint occupies significantly less PCB area than the 40-pin PDIP while adding 4 extra pins. For space-constrained production designs, the TQFP variant eliminates the through-hole constraint and allows smaller, denser PCB layouts.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $6.6500 | $6.65 |
| 40+ | $6.5900 | $263.60 |
| 50+ | $6.5800 | $329.00 |
| 100+ | $5.4700 | $547.00 |
| 1000+ | $5.0300 | $5030.00 |
| 5000+ | $4.7700 | $23850.00 |
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