PIC18F4580-I/PT Equivalent & Substitute Parts

Part Overview

The PIC18F4580-I/PT is an 8-bit microcontroller from Microchip Technology's PIC® 18F series, designed for embedded applications requiring moderate processing capability and integrated connectivity. This device features 32KB of FLASH program memory, 1.5KB of RAM, and 256 bytes of EEPROM, operating at 40MHz with a supply voltage range of 4.2V to 5.5V. The microcontroller integrates CANbus, I2C, SPI, and UART/USART connectivity interfaces, along with peripheral functions including brown-out detection, high-level voltage detection, power-on reset, PWM, and watchdog timer capabilities. The part is currently in active production status and is RoHS3 compliant. Substitute parts are identified when electrical specifications, memory configuration, connectivity features, and physical packaging remain identical or functionally equivalent across different packaging and supply chain formats.

Substiute Parts

PIC18F4580-I/PT

Microchip TechnologyIn Stock: 18821PIC18F4580-I/PT Datasheet

Current PartRFQ

PIC18F4580T-I/PT

Microchip TechnologyIn Stock: 2341PIC18F4580T-I/PT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC18F4580-I/PT is determined by strict equivalence across the following critical parameters: core processor architecture (PIC), core size (8-Bit), operating frequency (40MHz), program memory capacity and type (32KB FLASH), EEPROM size (256 x 8), RAM capacity (1.5K x 8), supply voltage range (4.2V ~ 5.5V), I/O count (36 pins), integrated connectivity interfaces (CANbus, I2C, SPI, UART/USART), peripheral feature set (brown-out detect/reset, HLVD, POR, PWM, WDT), data converter specifications (A/D 11x10b), operating temperature range (-40°C ~ 85°C), and physical package format (44-TQFP 10x10).

Substitute parts must maintain identical electrical and functional specifications while differing only in packaging format (tape and reel versus tray) or supply chain designation. The base product number PIC18F4580 remains constant across all equivalent variants.

Parameter Comparison

Engineering Selection Recommendations

Both the PIC18F4580-I/PT and PIC18F4580T-I/PT are active production devices from Microchip Technology with identical electrical and functional specifications. Selection between these parts is determined by supply chain requirements and compliance constraints.

The PIC18F4580-I/PT is supplied in tray packaging format and maintains RoHS3 compliance with MSL 1 rating, indicating unlimited shelf life under standard storage conditions. This variant is suitable for applications with strict environmental compliance requirements and extended inventory management timelines.

The PIC18F4580T-I/PT is supplied in cut tape and Digi-Reel® formats, optimized for automated assembly line integration. This variant carries RoHS non-compliant status and MSL 3 rating (168-hour moisture sensitivity window), requiring controlled storage and handling procedures. Selection of this variant is appropriate for high-volume production environments where tape and reel packaging provides manufacturing efficiency benefits and where RoHS compliance is not a regulatory requirement.

Both parts share identical REACH unaffected status and ECCN/HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Are PIC18F4580-I/PT and PIC18F4580T-I/PT electrically interchangeable?

A: Yes. Both parts are functionally identical with respect to all electrical specifications, memory configuration, operating frequency, supply voltage range, I/O count, connectivity interfaces, and peripheral features. They differ only in packaging format and compliance certifications.

Q: What is the difference between tray and cut tape packaging?

A: Tray packaging (PIC18F4580-I/PT) is used for manual handling and smaller-volume assembly operations. Cut tape and Digi-Reel® packaging (PIC18F4580T-I/PT) is optimized for automated pick-and-place assembly equipment and high-volume production environments.

Q: Does RoHS compliance affect functional performance?

A: No. RoHS compliance status reflects manufacturing process and material composition standards but does not alter electrical performance or functional capability. The PIC18F4580-I/PT is RoHS3 compliant, while the PIC18F4580T-I/PT is RoHS non-compliant. Selection depends on regulatory requirements for the end application.

Q: What does MSL 1 versus MSL 3 mean for storage?

A: MSL (Moisture Sensitivity Level) indicates the maximum time a component can be exposed to ambient humidity before moisture absorption affects reliability. MSL 1 (PIC18F4580-I/PT) allows unlimited storage under standard conditions. MSL 3 (PIC18F4580T-I/PT) requires use within 168 hours of package opening or requires baking to restore moisture absorption capacity.

Q: Can I substitute PIC18F4580T-I/PT for PIC18F4580-I/PT in a design?

A: Electrical and functional substitution is valid. However, verify that your application does not require RoHS3 compliance and that your assembly process can accommodate the MSL 3 moisture sensitivity requirement of the tape and reel variant.

Q: Are there any pin-to-pin differences between these parts?

A: No. Both parts use the 44-TQFP (10x10) package with identical pin assignments and I/O configuration (36 I/O pins).