ATF1502ASV-15AI44 Equivalent & Substitute Parts

Part Overview

The ATF1502ASV-15AI44 is a Complex Programmable Logic Device (CPLD) from Microchip Technology's ATF15xx series, featuring 32 macrocells and 32 I/O pins in a 44-pin TQFP package. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement.

The ATF1502ASV-15AI44 is an in-system programmable device with a maximum propagation delay of 15 nanoseconds, operating across the industrial temperature range of -40°C to 85°C. The obsolete status of this part requires engineers to identify suitable substitutes that maintain electrical and mechanical compatibility.

Substiute Parts

ATF1502ASV-15AI44

Microchip TechnologyIn Stock: 1432ATF1502ASV-15AI44 Datasheet

Current PartRFQ

ATF1502ASV-15AU44

Microchip TechnologyIn Stock: 1713ATF1502ASV-15AU44 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF1502ASV-15AI44 is determined by strict equivalence across the following critical parameters:

• Macrocell count: 32 macrocells
• I/O pin count: 32 pins
• Maximum propagation delay: 15 nanoseconds
• Supply voltage range: 3V to 3.6V
• Package type: 44-pin TQFP (10x10mm)
• Programmable architecture: In-system programmable with minimum 10K program/erase cycles
• Operating temperature range: -40°C to 85°C

The ATF1502ASV-15AU44 meets all electrical and mechanical requirements for direct substitution. Both devices share identical core specifications, differing only in product status and packaging format (tray versus tube).

Parameter Comparison

Engineering Selection Recommendations

The ATF1502ASV-15AU44 is the direct functional equivalent of the ATF1502ASV-15AI44. Selection of the substitute part is supported by:

• Identical electrical specifications across all critical parameters
• Active product status ensuring continued availability and supply chain stability
• ROHS3 compliance of the substitute part, addressing regulatory requirements for new designs
• Equivalent programmable architecture and performance characteristics
• Same package footprint and mounting requirements

The transition from the obsolete ATF1502ASV-15AI44 to the ATF1502ASV-15AU44 requires no circuit redesign or layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the ATF1502ASV-15AU44 be used as a direct replacement for the ATF1502ASV-15AI44?

A: Yes. Both devices are electrically and mechanically identical, with matching macrocell count, I/O configuration, propagation delay, supply voltage, operating temperature range, and package specifications. The substitute part differs only in product status and RoHS compliance.

Q: What is the difference between the -15AI44 and -15AU44 suffixes?

A: The suffix indicates packaging format. The -15AI44 uses tube packaging, while the -15AU44 uses tray packaging. Both contain identical die and electrical specifications.

Q: Are there any design considerations when switching from the obsolete to the active part?

A: No design changes are required. The devices are pin-compatible and functionally equivalent. Existing firmware and JEDEC files programmed for the ATF1502ASV-15AI44 are compatible with the ATF1502ASV-15AU44.

Q: Does the ROHS3 compliance of the substitute part affect compatibility?

A: No. ROHS3 compliance is a manufacturing and material specification that does not affect electrical performance or functional compatibility. The substitute part meets the same electrical and mechanical requirements as the original part.

Q: What is the MSL rating and why is it relevant?

A: Both devices carry an MSL rating of 3 (168 Hours), indicating moisture sensitivity. This specification applies to storage and handling conditions prior to soldering and does not affect post-assembly performance.