PIC16LC620T-04E/SS Equivalent & Substitute Parts

Part Overview

The PIC16LC620T-04E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring low-power operation and basic I/O control. This device features 896B of OTP (One-Time Programmable) memory, 80 x 8 bytes of RAM, and 13 I/O pins, operating at 4MHz with an external oscillator. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

PIC16LC620T-04E/SS

Microchip TechnologyIn Stock: 1113PIC16LC620T-04E/SS Datasheet

Current PartRFQ

PIC16LC620-04I/SS

Microchip TechnologyIn Stock: 867PIC16LC620-04I/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16LC620T-04E/SS is determined by strict equivalence across the following critical parameters:

• Core Architecture & Memory: Identical 8-bit PIC core, 896B OTP program memory (512 x 14), and 80 x 8 RAM configuration
• Electrical Specifications: Matching 4MHz speed, 2.5V ~ 6V supply voltage range, and identical peripheral set (Brown-out Detect/Reset, POR, WDT)
• I/O Configuration: 13 I/O pins maintained across all substitutes
• Package & Form Factor: 20-SSOP surface mount package with identical 0.209" (5.30mm) width
• Compliance & Environmental: ROHS3 compliance, MSL 1 rating, and external oscillator requirement

The PIC16LC620-04I/SS qualifies as a direct substitute based on complete parameter alignment with the main part, with the exception of operating temperature range and product status differences noted in the comparison table.

Parameter Comparison

Engineering Selection Recommendations

The PIC16LC620-04I/SS is a direct functional equivalent to the PIC16LC620T-04E/SS. Both parts maintain identical core architecture, memory configuration, I/O count, and electrical specifications. The primary distinction is product status: the main part is obsolete while the substitute is active, ensuring continued availability and manufacturing support.

The operating temperature range difference (-40°C ~ 125°C versus -40°C ~ 85°C) must be evaluated against specific application requirements. Systems designed for the extended upper temperature limit of 125°C require confirmation that the substitute's 85°C maximum is acceptable for the intended thermal environment.

Both parts carry ROHS3 compliance and MSL 1 ratings, confirming equivalent environmental and handling characteristics. The 20-SSOP package footprint is identical, permitting direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can the PIC16LC620-04I/SS replace the PIC16LC620T-04E/SS in existing designs?

A: Yes, the PIC16LC620-04I/SS is functionally equivalent across all core parameters including memory, I/O configuration, speed, and package. Verify that your application's maximum operating temperature does not exceed 85°C, as this is the upper limit for the substitute part.

Q: What is the significance of the product status difference?

A: The main part (PIC16LC620T-04E/SS) is classified as obsolete, indicating discontinued manufacturing. The substitute (PIC16LC620-04I/SS) maintains active status, ensuring ongoing availability from Microchip Technology and authorized distributors.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the 20-SSOP package with identical dimensions of 0.209" (5.30mm) width. No PCB layout modifications are required for substitution.

Q: Do both parts require the same external oscillator configuration?

A: Yes. Both the PIC16LC620T-04E/SS and PIC16LC620-04I/SS require external oscillator operation at 4MHz. Oscillator circuit design remains unchanged during substitution.

Q: Are there compliance or environmental handling differences?

A: No. Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings, confirming equivalent environmental and handling requirements.