PIC16LC620A-04I/P Equivalent & Substitute Parts

Part Overview

The PIC16LC620A-04I/P is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring low-power operation. This device features 896B of OTP (One-Time Programmable) memory, 13 I/O pins, and operates across a 2.5V to 5.5V supply range with an external oscillator at 4MHz. The part maintains Active product status with verified programmability through DiGi-Electronics. Substitute parts are identified when equivalent functional requirements can be met while accommodating design evolution, inventory availability, or performance enhancements within the same package footprint and pin configuration.

Substiute Parts

PIC16LC620A-04I/P

Microchip TechnologyIn Stock: 857PIC16LC620A-04I/P Datasheet

Current PartRFQ

PIC16F627A-I/P

Microchip TechnologyIn Stock: 4694PIC16F627A-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16LC620A-04I/P is determined by the following critical parameters:

Core Compatibility Requirements:

• 8-Bit core processor (PIC architecture)
• 18-DIP package footprint (0.300", 7.62mm)
• Through-hole mounting type
• Operating temperature range: -40°C ~ 85°C (TA)
• Supply voltage compatibility within or overlapping 2.5V ~ 5.5V range

Functional Equivalence Criteria:

• Minimum program memory: 896B or greater
• Minimum RAM: 96 x 8 or greater
• Minimum I/O pins: 13 or greater
• Peripheral support: Brown-out Detect/Reset, POR, WDT (minimum)
• Active product status with verified programmability

The PIC16F627A-I/P qualifies as a direct substitute based on these parameters. While it operates at higher speed (20MHz vs. 4MHz) and uses FLASH memory instead of OTP, it maintains full pin compatibility, exceeds memory specifications, and provides enhanced peripheral integration within the same package.

Parameter Comparison

Engineering Selection Recommendations

Both the PIC16LC620A-04I/P and PIC16F627A-I/P maintain Active product status with verified programmability. Both devices are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical MSL ratings.

The PIC16F627A-I/P provides enhanced capabilities within the same 18-DIP package: increased program memory (1.75KB vs. 896B), additional RAM (224 x 8 vs. 96 x 8), integrated EEPROM (128 x 8), three additional I/O pins (16 vs. 13), and UART/USART connectivity. The FLASH memory type enables field reprogramming, contrasting with the OTP limitation of the original part.

Selection between these devices depends on application requirements: retain the PIC16LC620A-04I/P for designs requiring OTP memory finality and 2.5V minimum supply operation, or transition to the PIC16F627A-I/P for applications benefiting from reprogrammable FLASH, expanded memory resources, and higher processing speed within a 3V minimum supply constraint.

Frequently Asked Questions (FAQ)

Q: Can the PIC16F627A-I/P directly replace the PIC16LC620A-04I/P in existing PCB layouts?

A: Yes. Both devices use the 18-DIP (0.300", 7.62mm) package with identical through-hole pin spacing and footprint. No PCB modifications are required for physical substitution.

Q: What is the primary functional difference between these parts?

A: The PIC16LC620A-04I/P uses OTP (One-Time Programmable) memory, while the PIC16F627A-I/P uses FLASH memory. OTP memory cannot be reprogrammed after initial programming; FLASH memory supports multiple reprogram cycles. The PIC16F627A-I/P also operates at 20MHz versus 4MHz and includes UART/USART connectivity.

Q: Are there supply voltage compatibility concerns?

A: The PIC16LC620A-04I/P operates from 2.5V to 5.5V, while the PIC16F627A-I/P operates from 3V to 5.5V. Designs operating below 3V require the original part. Designs operating at 3V or above support both devices.

Q: Does the PIC16F627A-I/P provide additional I/O pins?

A: Yes. The PIC16F627A-I/P provides 16 I/O pins compared to 13 on the PIC16LC620A-04I/P. Existing designs using 13 pins remain compatible; additional pins are available for expanded functionality.

Q: Are both parts suitable for production use?

A: Both devices maintain Active product status with verified programmability and full compliance certifications (ROHS3, REACH unaffected, EAR99). Both are suitable for production applications.

Q: What memory advantages does the PIC16F627A-I/P offer?

A: The PIC16F627A-I/P provides 1.75KB program memory (vs. 896B), 224 x 8 RAM (vs. 96 x 8), and 128 x 8 EEPROM. These expanded resources support more complex firmware implementations and data storage requirements.