PIC16LC620AT-04E/SS Equivalent & Substitute Parts

Part Overview

The PIC16LC620AT-04E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 896B of OTP program memory and 13 I/O pins in a 20-SSOP surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a wide voltage range of 2.5V to 5.5V and supports an external oscillator at 4MHz with integrated brown-out detection, power-on reset, and watchdog timer functionality.

Substiute Parts

PIC16LC620AT-04E/SS

Microchip TechnologyIn Stock: 883PIC16LC620AT-04E/SS Datasheet

Current PartRFQ

PIC16LC620A-04E/SS

Microchip TechnologyIn Stock: 1003PIC16LC620A-04E/SS Datasheet

DirectRFQ

PIC16LC620A-04I/SS

Microchip TechnologyIn Stock: 789PIC16LC620A-04I/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PIC16LC620AT-04E/SS is determined by strict equivalence across the following critical parameters:

• Core Processor Architecture: PIC 8-bit processor
• Program Memory Configuration: 896B (512 x 14) OTP
• RAM Configuration: 96 x 8
• I/O Pin Count: 13 pins
• Operating Frequency: 4MHz
• Voltage Supply Range: 2.5V ~ 5.5V
• Package Type: 20-SSOP surface mount
• Peripheral Set: Brown-out Detect/Reset, POR, WDT

The substitute parts identified maintain identical electrical and mechanical specifications with the main part, with variations limited to product status (active vs. obsolete), temperature rating range, and packaging format. All substitutes are manufactured by Microchip Technology and belong to the PIC® 16C series.

Parameter Comparison

Engineering Selection Recommendations

PIC16LC620A-04E/SS is the primary substitute for the obsolete PIC16LC620AT-04E/SS. This part maintains identical electrical specifications and operating temperature range (-40°C ~ 125°C), with the distinction of active product status from Microchip Technology. Both parts are ROHS3 compliant and carry MSL rating of 1 (Unlimited), ensuring equivalent reliability and environmental compliance.

PIC16LC620A-04I/SS serves as an alternative substitute with identical core functionality and electrical parameters. The operating temperature range is constrained to -40°C ~ 85°C, representing a narrower specification window compared to the main part. This part is supplied in tube packaging and carries active product status. Selection of this variant is appropriate for applications where the reduced temperature range meets design requirements.

Both substitute parts are actively manufactured and stocked, providing superior availability compared to the obsolete main part. Component selection should be based on specific application temperature requirements and packaging format preferences.

Frequently Asked Questions (FAQ)

Q: Can PIC16LC620A-04E/SS directly replace PIC16LC620AT-04E/SS in existing designs?

A: Yes. Both parts share identical core processor architecture, memory configuration (896B OTP program memory, 96 x 8 RAM), I/O pin count (13), operating frequency (4MHz), voltage supply range (2.5V ~ 5.5V), and 20-SSOP package specifications. The primary difference is product status: the substitute is active while the original is obsolete.

Q: What is the temperature rating difference between PIC16LC620A-04E/SS and PIC16LC620A-04I/SS?

A: PIC16LC620A-04E/SS operates across -40°C ~ 125°C, matching the original part's temperature range. PIC16LC620A-04I/SS operates across -40°C ~ 85°C, a narrower specification. Selection depends on whether your application requires the extended upper temperature limit of 125°C.

Q: Are all three parts ROHS3 compliant?

A: Yes. PIC16LC620AT-04E/SS, PIC16LC620A-04E/SS, and PIC16LC620A-04I/SS are all ROHS3 compliant with MSL rating of 1 (Unlimited), ensuring equivalent environmental and regulatory compliance.

Q: What is the difference in packaging between the substitutes?

A: PIC16LC620A-04E/SS and PIC16LC620A-04I/SS both use 20-SSOP surface mount packages with identical physical dimensions (0.209", 5.30mm Width). The primary packaging difference is format: PIC16LC620A-04I/SS is supplied in tube packaging, while PIC16LC620A-04E/SS uses standard packaging.

Q: Are these parts pin-compatible?

A: Yes. All three parts use the 20-SSOP package with identical pin configuration and electrical characteristics, ensuring direct PCB compatibility without layout modifications.