ATF22V10CQZ-20SC Equivalent & Substitute Parts

Part Overview

The ATF22V10CQZ-20SC is a 22V10 Programmable Logic Device (PLD) IC manufactured by Microchip Technology, featuring 10 macrocells with 20 nanosecond speed performance in a 24-SOIC surface mount package. This part is classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing design support and procurement. The ATF22V10 series remains functionally relevant for legacy system maintenance and component replacement applications where pin-compatible, electrically equivalent substitutes are required.

Substiute Parts

ATF22V10CQZ-20SC

Microchip TechnologyIn Stock: 1174ATF22V10CQZ-20SC Datasheet

Current PartRFQ

ATF22V10CQZ-20SU

Microchip TechnologyIn Stock: 2280ATF22V10CQZ-20SU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF22V10CQZ-20SC is determined by strict equivalence across the following parameters:

• Macrocell Count: 10 macrocells (functional logic capacity)
• Speed Grade: 20 ns (timing performance)
• Input Voltage: 5V (electrical compatibility)
• Package Type: 24-SOIC (physical and pin compatibility)
• Programmable Technology: EE PLD (electrically erasable programmable logic device)
• Manufacturer: Microchip Technology (design and process consistency)

The ATF22V10CQZ-20SU meets all these criteria and is identified as a direct substitute. The primary distinction between the main part and its substitute is product status (obsolete versus active) and packaging format (tape/reel versus tube), with corresponding improvements in RoHS compliance and moisture sensitivity rating.

Parameter Comparison

Engineering Selection Recommendations

The ATF22V10CQZ-20SU is the direct functional and electrical equivalent of the ATF22V10CQZ-20SC. Selection of the substitute part is justified by the following factors:

• Active Product Status: The ATF22V10CQZ-20SU maintains active manufacturing status, ensuring long-term availability and supply chain continuity compared to the obsolete main part.
• RoHS3 Compliance: The substitute meets ROHS3 compliance requirements, whereas the main part is non-compliant. This is relevant for applications subject to environmental and regulatory standards.
• Identical Electrical Performance: Both parts share identical macrocell count, speed grade, input voltage, and programmable technology, ensuring direct functional interchangeability.
• Pin and Package Compatibility: Both parts use the 24-SOIC package with identical pinout and physical dimensions, permitting direct board-level substitution without layout modification.
• Moisture Sensitivity: The substitute carries MSL 2 (1 Year) versus MSL 1 (Unlimited) for the main part. This represents a minor operational consideration for storage and handling protocols but does not affect electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the ATF22V10CQZ-20SU be used as a direct replacement for the ATF22V10CQZ-20SC on existing circuit boards?

A: Yes. Both parts are electrically and physically identical in all functional parameters: 10 macrocells, 20 ns speed, 5V input voltage, and 24-SOIC package. Direct board-level substitution is possible without design modification.

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

A: The ATF22V10CQZ-20SC is obsolete and no longer manufactured. The ATF22V10CQZ-20SU is actively produced by Microchip Technology, ensuring availability for new procurement and long-term supply chain support.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical characteristics. Both parts deliver identical electrical performance. The ROHS3 compliance of the substitute is relevant only for applications subject to environmental regulations.

Q: What is the practical impact of the Moisture Sensitivity Level (MSL) difference?

A: MSL 1 (Unlimited) allows indefinite storage without moisture absorption concerns. MSL 2 (1 Year) requires that the part be used within one year of the moisture barrier bag opening. This affects storage and handling procedures but not electrical functionality or performance.

Q: Are there any differences in programmability or device programming between these parts?

A: No. Both parts are EE PLD (electrically erasable programmable logic devices) with identical programmable architecture. Programming procedures, fuse maps, and device configuration are identical.

Q: What packaging format differences exist between these parts?

A: The main part (ATF22V10CQZ-20SC) is supplied in tape/reel format. The substitute (ATF22V10CQZ-20SU) is supplied in tube packaging. Both formats contain the same component; the difference is in bulk packaging and handling for manufacturing environments.