Equivalent & Substitute Parts Reference for AT80C32X2-SLSUL

Part Overview

The AT80C32X2-SLSUL is a Microchip Technology embedded microcontroller IC belonging to the 80C series. It features an 8-bit 80C51 core, operates at 30/20MHz, and is presented in a 44-PLCC surface mount package. The product status is listed as obsolete, necessitating identification of substitute models for continued design-in or replacement purposes. Finding alternatives is essential when legacy components become unavailable or discontinued, ensuring continuity in manufacturing and support.

Substiute Parts

AT80C32X2-SLSUL

Microchip TechnologyIn Stock: 2974AT80C32X2-SLSUL Datasheet

Current PartRFQ

AT80C51RD2-SLSUM

Microchip TechnologyIn Stock: 1281AT80C51RD2-SLSUM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AT80C32X2-SLSUL is based on strict alignment of the following parameters: 80C series membership, identical core processor (80C51), 8-bit core size, ROMless program memory type, compatible connectivity (UART/USART), same number of I/O (32), surface mount 44-PLCC package, voltage supply range, operating temperature, and environmental compliance. Parts are considered substitutes when all these criteria are matched without deviation.

Parameter Comparison

Engineering Selection Recommendations

The AT80C32X2-SLSUL is designated as obsolete with ROHS3 compliance and REACH unaffected status. The AT80C51RD2-SLSUM, also ROHS3 compliant and REACH unaffected, is active and thus suitable for direct substitution based strictly on compliance, inventory availability, and regulatory status. Both parts share identical mounting type, package format, and supply voltage range, supporting engineering selection for replacement in existing designs.

Frequently Asked Questions (FAQ)

Q: What determines substitute compatibility for embedded microcontroller ICs like the AT80C32X2-SLSUL?
A: Substitute compatibility is determined strictly by alignment of manufacturer, series, core processor, core size, connectivity, program memory type, number of I/O, package type, supply voltage range, operating temperature, and compliance certifications.

Q: Is the package pinout and footprint identical between AT80C32X2-SLSUL and AT80C51RD2-SLSUM?
A: Both parts utilize the 44-PLCC (16.6x16.6) supplier device package and 44-LCC (J-Lead) case, supporting drop-in mechanical compatibility.

Q: Are there differences in electrical specifications relevant to substitution?
A: Both parts share the same supply voltage range (2.7V ~ 5.5V), core architecture, and I/O count. Differences are present in RAM size and maximum clock speed.

Q: What are the main factors for choosing AT80C51RD2-SLSUM as an AT80C32X2-SLSUL substitute?
A: AT80C51RD2-SLSUM is active, shares the core electrical and mechanical parameters, and meets ROHS3 and REACH compliance, supporting engineering substitution.

Q: How should Moisture Sensitivity Level (MSL) differences be addressed during device qualification?
A: MSL values differ: AT80C32X2-SLSUL is MSL 2 (1 Year), AT80C51RD2-SLSUM is MSL 3 (168 Hours); ensure manufacturing processes align with device handling requirements as indicated in specifications.