PIC18F448-I/P Equivalent & Substitute Parts

Part Overview

The PIC18F448-I/P is an 8-bit microcontroller from Microchip Technology's PIC® 18F series, featuring 16KB FLASH program memory, 768 bytes of RAM, and 256 bytes of EEPROM. This device operates at 40MHz with integrated peripherals including CANbus, I2C, SPI, and UART/USART connectivity. The part is actively produced and widely used in embedded control applications requiring mid-range processing capability with multiple communication interfaces.

Substitute parts are identified when they maintain functional equivalence across core electrical parameters and mechanical compatibility, enabling direct replacement in existing designs or alternative sourcing for inventory management.

Substiute Parts

PIC18F448-I/P

Microchip TechnologyIn Stock: 2030PIC18F448-I/P Datasheet

Current PartRFQ

PIC18F4480-I/P

Microchip TechnologyIn Stock: 1390PIC18F4480-I/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC18F448-I/P is determined by strict alignment across the following critical parameters:

• Core Architecture: PIC 8-bit processor
• Program Memory: 16KB FLASH capacity
• RAM: 768 bytes minimum
• EEPROM: 256 bytes minimum
• Operating Speed: 40MHz
• Supply Voltage: 4.2V ~ 5.5V range
• Package: 40-DIP through-hole form factor
• Temperature Range: -40°C ~ 85°C
• Product Status: Active manufacturing

The PIC18F4480-I/P meets these core substitution criteria. While this substitute introduces enhancements in specific areas (increased I/O count, higher A/D resolution, internal oscillator option), these additions do not compromise backward compatibility or create functional conflicts in applications designed for the PIC18F448-I/P.

Parameter Comparison

Engineering Selection Recommendations

Both the PIC18F448-I/P and PIC18F4480-I/P are actively manufactured by Microchip Technology and maintain full compliance with ROHS3 and REACH regulations. Both devices carry MSL Level 1 moisture sensitivity classification, indicating unlimited shelf life under standard storage conditions.

Selection between these parts should be based on application-specific requirements:

• PIC18F448-I/P: Select when external oscillator configuration is required or when the 8-channel 10-bit A/D converter meets application specifications.
• PIC18F4480-I/P: Select when internal oscillator capability is beneficial for design simplification, or when the 11-channel 10-bit A/D converter and 36 I/O pins provide functional advantages over the 33 I/O of the PIC18F448-I/P.

Both parts are suitable for applications operating within the -40°C to 85°C temperature range and 4.2V to 5.5V supply voltage window.

Frequently Asked Questions (FAQ)

Q: Can the PIC18F4480-I/P directly replace the PIC18F448-I/P in existing PCB designs?

A: Yes. Both devices use identical 40-DIP through-hole packaging with the same pin pitch (0.600", 15.24mm). Pin-level compatibility is maintained for core functionality. However, verify that additional I/O pins (36 vs. 33) and enhanced A/D channels do not conflict with your PCB layout or application firmware.

Q: What are the key differences between these two parts?

A: The PIC18F4480-I/P provides three additional I/O pins, an 11-channel A/D converter (versus 8-channel), and internal oscillator support. The PIC18F448-I/P requires external oscillator configuration. Both share identical program memory, RAM, EEPROM, speed, and voltage specifications.

Q: Are there any compliance or regulatory differences?

A: No. Both parts maintain identical ROHS3 compliance, REACH unaffected status, and MSL Level 1 moisture sensitivity classification. ECCN and HTSUS codes are identical.

Q: Which part should I select for new designs?

A: Selection depends on oscillator architecture preference and I/O requirements. If internal oscillator capability simplifies your design and additional I/O channels are beneficial, the PIC18F4480-I/P is the appropriate choice. If external oscillator configuration is already established in your design methodology, the PIC18F448-I/P maintains compatibility.

Q: Are both parts available in the same packaging options?

A: Both are supplied in 40-PDIP through-hole packages. The PIC18F448-I/P is available in standard packaging, while the PIC18F4480-I/P is available in tube packaging. Verify packaging requirements with your procurement specifications.