PIC16C620AT-20E/SS Equivalent & Substitute Parts

Part Overview

The PIC16C620AT-20E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 896B of OTP program memory and operating at 20MHz. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and component sourcing. The part is housed in a 20-SSOP surface mount package and operates across an extended temperature range of -40°C to 125°C.

Substiute Parts

PIC16C620AT-20E/SS

Microchip TechnologyIn Stock: 1143PIC16C620AT-20E/SS Datasheet

Current PartRFQ

PIC16C620A-20I/SS

Microchip TechnologyIn Stock: 3560PIC16C620A-20I/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16C620AT-20E/SS is determined by strict equivalence across the following critical parameters:

• Core Architecture: PIC 8-bit processor
• Program Memory: 896B OTP (512 x 14)
• RAM Configuration: 96 x 8
• I/O Count: 13 pins
• Operating Speed: 20MHz
• Supply Voltage Range: 2.5V ~ 5.5V
• Package Type: 20-SSOP surface mount
• Physical Dimensions: 0.209" × 5.30mm width

The PIC16C620A-20I/SS qualifies as a direct substitute, maintaining identical electrical specifications and package geometry. Differences in product status (active vs. obsolete) and operating temperature range do not preclude functional substitution when thermal requirements are within the substitute's specification.

Parameter Comparison

Engineering Selection Recommendations

The PIC16C620A-20I/SS is the qualified direct substitute for the PIC16C620AT-20E/SS. Both devices maintain identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility. The substitute carries active product status from Microchip Technology, providing superior long-term availability and supply chain stability compared to the obsolete main part.

The primary distinction is the operating temperature range: the substitute supports -40°C to 85°C versus the main part's -40°C to 125°C. Applications requiring operation above 85°C must retain the original part number or identify alternative solutions outside this product family.

Both parts are ROHS3 compliant and carry identical moisture sensitivity ratings, ensuring equivalent handling and storage requirements. The substitute is available in tube packaging, whereas the main part packaging is unspecified.

Frequently Asked Questions (FAQ)

Q: Can the PIC16C620A-20I/SS replace the PIC16C620AT-20E/SS in all applications?

A: Yes, for applications operating within -40°C to 85°C. The substitute maintains identical core specifications, memory configuration, I/O count, and package geometry. Applications requiring operation above 85°C require the original part or alternative solutions.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: Active status indicates ongoing manufacturing and distribution by Microchip Technology, ensuring reliable long-term availability. Obsolete status indicates discontinued production, making the substitute the preferred choice for new designs and ongoing production requirements.

Q: Are the 20-SSOP packages physically identical?

A: Yes. Both parts use the 20-SSOP package with identical dimensions of 0.209" × 5.30mm width, ensuring direct PCB compatibility without layout modifications.

Q: Do both parts require identical handling procedures?

A: Yes. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage or handling.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8542.31.0001.