PIC18F6720T-I/PT Equivalent & Substitute Parts

Part Overview

The PIC18F6720T-I/PT is an 8-bit microcontroller from Microchip Technology's PIC® 18F series, designed for embedded applications requiring 128KB FLASH memory and moderate processing speed. This device operates at 25MHz with 52 I/O pins and integrates essential peripherals including PWM, watchdog timer, and analog-to-digital conversion. The part is currently in active production status with full RoHS3 compliance and verified programmability through DiGi-Electronics. Identifying equivalent and substitute parts becomes necessary when addressing supply constraints, performance requirements, or specific application needs that may benefit from enhanced specifications within the same product family.

Substiute Parts

PIC18F6720T-I/PT

Microchip TechnologyIn Stock: 5000433PIC18F6720T-I/PT Datasheet

Current PartRFQ

PIC18F6722T-I/PT

Microchip TechnologyIn Stock: 5000381PIC18F6722T-I/PT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC18F6720T-I/PT is determined by strict adherence to core electrical and mechanical parameters. The following criteria establish valid substitution relationships:

Critical Matching Parameters:

• Core processor family (PIC)
• Core size (8-Bit)
• Program memory size (128KB FLASH)
• Package type (64-TQFP 10x10)
• Supply voltage range (4.2V ~ 5.5V)
• Operating temperature range (-40°C ~ 85°C)
• RoHS3 compliance status
• Mounting type (Surface Mount)

Allowable Variation Parameters:

• Processing speed (may increase without functional impact)
• Number of I/O pins (may increase)
• RAM size (may increase)
• Peripheral feature set (may expand)
• Oscillator type (internal or external)
• Packaging format (Tape & Reel or Cut Tape variants)

The PIC18F6722T-I/PT qualifies as a direct substitute based on these criteria, maintaining identical memory architecture and package specifications while offering enhanced performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The PIC18F6722T-I/PT serves as a qualified substitute for the PIC18F6720T-I/PT based on maintained compliance with RoHS3 standards and identical operating temperature specifications. Both devices retain active product status from Microchip Technology and verified programmability certification through DiGi-Electronics.

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

Select PIC18F6720T-I/PT when:

• External oscillator configuration is required by system design
• 25MHz processing speed is sufficient for application demands
• Exact pin-for-pin compatibility with existing designs is mandatory

Select PIC18F6722T-I/PT when:

• Higher processing speed (40MHz) provides performance benefits
• Additional I/O pins (54 vs 52) address expanded connectivity needs
• Internal oscillator capability reduces external component requirements
• Enhanced voltage detection (HLVD) improves power supply monitoring
• Slightly increased RAM (3.8K vs 3.75K) supports application requirements

Both devices maintain identical supply voltage ranges, memory architecture, and thermal operating specifications, ensuring functional compatibility within the specified parameter envelope.

Frequently Asked Questions (FAQ)

Q: Can PIC18F6722T-I/PT directly replace PIC18F6720T-I/PT in existing PCB designs?

A: Yes. Both devices use identical 64-TQFP (10x10) packaging with surface mount configuration. Pin assignments for core functionality remain compatible. The additional 2 I/O pins on the PIC18F6722T-I/PT do not conflict with existing designs; they represent expanded capability on previously unused package positions.

Q: What are the key differences between these microcontrollers?

A: The PIC18F6722T-I/PT operates at 40MHz versus 25MHz on the PIC18F6720T-I/PT, provides 54 I/O pins versus 52, includes 3.8K RAM versus 3.75K, supports internal oscillator operation, and features HLVD (High/Low Voltage Detect) instead of LVD (Low Voltage Detect). Program memory, EEPROM, and supply voltage specifications remain identical.

Q: Are there packaging format differences between these parts?

A: The PIC18F6720T-I/PT is supplied in Tape & Reel (TR) format, while the PIC18F6722T-I/PT is available in Cut Tape (CT) and Digi-Reel® format. Both packaging formats contain identical die and electrical specifications; format selection depends on assembly process requirements and inventory management preferences.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the PIC18F6720T-I/PT and PIC18F6722T-I/PT are ROHS3 compliant, REACH unaffected, and carry identical Moisture Sensitivity Level (MSL) 3 ratings with 168-hour exposure limits. Both maintain active product status with verified programmability certification.

Q: What is the impact of the oscillator type difference?

A: The PIC18F6720T-I/PT requires external oscillator circuitry, while the PIC18F6722T-I/PT supports internal oscillator operation. This difference affects PCB layout and component count but does not prevent substitution. Applications using external oscillators with the PIC18F6720T-I/PT can operate the PIC18F6722T-I/PT identically by maintaining external oscillator configuration.

Q: Are there supply voltage or thermal operating range differences?

A: No. Both devices operate across identical supply voltage ranges (4.2V ~ 5.5V) and thermal ranges (-40°C ~ 85°C). Substitution does not require power supply or thermal management modifications.