PIC16LC63AT-04I/SO Equivalent & Substitute Parts

Part Overview

The PIC16LC63AT-04I/SO is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring low-power operation and integrated peripheral support. This device features 7KB of OTP (One-Time Programmable) memory, 22 I/O pins, and operates across a wide supply voltage range of 2.5V to 5.5V. The part is currently in active production status and is ROHS3 compliant. Substitute parts are identified when electrical specifications, memory configuration, pin count, and package format remain identical across manufacturing revisions or packaging variants.

Substiute Parts

PIC16LC63AT-04I/SO

Microchip TechnologyIn Stock: 1035PIC16LC63AT-04I/SO Datasheet

Current PartRFQ

PIC16LC63A-04I/SO

Microchip TechnologyIn Stock: 2734PIC16LC63A-04I/SO Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16LC63AT-04I/SO is determined by strict equivalence across the following critical parameters:

• Core Architecture & Processing: Identical PIC core processor and 8-bit architecture
• Memory Configuration: Matching 7KB OTP program memory (4K x 14) and 192 x 8 RAM
• Electrical Specifications: Identical 4MHz operating speed and 2.5V to 5.5V supply voltage range
• Pin Configuration: Identical 22 I/O pins and 28-SOIC package format
• Peripheral Set: Matching I2C, SPI, UART/USART connectivity and Brown-out Detect/Reset, POR, PWM, WDT peripherals
• Operating Conditions: Identical -40°C to 85°C temperature range

The identified substitute part PIC16LC63A-04I/SO maintains full electrical and functional equivalence to the main part number, with differences limited to manufacturing revision level and packaging configuration (tube packaging versus unspecified packaging for the main part).

Parameter Comparison

Engineering Selection Recommendations

Both the PIC16LC63AT-04I/SO and PIC16LC63A-04I/SO are active production devices from Microchip Technology with identical ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• Availability: The PIC16LC63A-04I/SO currently maintains higher inventory (2700 pcs) compared to the main part (1004 pcs)
• Packaging Configuration: The substitute part is supplied in tube packaging, which may influence procurement and handling procedures
• Manufacturing Revision: The PIC16LC63A-04I/SO represents a newer manufacturing revision with identical electrical performance
• Moisture Sensitivity: The substitute part specifies MSL 3 (168 Hours) versus MSL 1 (Unlimited) for the main part, requiring appropriate storage and handling protocols

Both parts are suitable for direct substitution in applications where the PIC16LC63AT-04I/SO is specified, provided that packaging and moisture sensitivity requirements are accommodated in the assembly process.

Frequently Asked Questions (FAQ)

Q: Are PIC16LC63AT-04I/SO and PIC16LC63A-04I/SO electrically interchangeable?

A: Yes. Both devices share identical core architecture, memory configuration, I/O pin count, operating voltage range, speed rating, and peripheral set. They are functionally equivalent at the electrical level.

Q: What is the difference between these part numbers?

A: The primary differences are manufacturing revision level (indicated by the "A" designation in the substitute part) and packaging format. The substitute part is supplied in tube packaging. Both maintain identical electrical specifications and compliance certifications.

Q: Does the MSL (Moisture Sensitivity Level) difference affect substitution?

A: The MSL difference (MSL 1 versus MSL 3) does not affect electrical performance or functional compatibility. However, it requires adherence to different moisture control and storage protocols during manufacturing and assembly. MSL 3 components require storage in controlled humidity environments and have a limited shelf life of 168 hours after opening.

Q: Can I use PIC16LC63A-04I/SO as a drop-in replacement in existing designs?

A: Yes, provided that the 28-SOIC package footprint and pin configuration are maintained in the PCB layout. The tube packaging of the substitute part does not affect board-level compatibility.

Q: Are both parts ROHS3 compliant?

A: Yes. Both PIC16LC63AT-04I/SO and PIC16LC63A-04I/SO are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Which part should I select for new designs?

A: Selection should be based on current availability, supply chain requirements, and packaging preferences. Both parts are active production devices with identical electrical performance and are suitable for new designs.