ATF1500A-10AI Equivalent & Substitute Parts

Part Overview

The ATF1500A-10AI is a Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology, featuring 32 macrocells and 32 I/O pins in a 44-TQFP surface mount package. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and production requirements. The ATF1500A-10AI operates with a maximum propagation delay of 10 nanoseconds and supports in-system programming with a minimum of 100 program/erase cycles.

Substiute Parts

ATF1500A-10AI

Microchip TechnologyIn Stock: 862ATF1500A-10AI Datasheet

Current PartRFQ

ATF1500A-10AU

Microchip TechnologyIn Stock: 1637ATF1500A-10AU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF1500A-10AI is determined by strict equivalence across the following critical parameters:

• Macrocell count: 32 macrocells
• I/O pin count: 32 pins
• Maximum propagation delay: 10 ns
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Package type: 44-TQFP surface mount
• Programmable architecture: In-system programmable

The ATF1500A-10AU meets all electrical and mechanical requirements for direct substitution. Both devices share identical core specifications within the ATF15xx series and maintain pin-for-pin compatibility in the 44-TQFP package.

Parameter Comparison

Engineering Selection Recommendations

The ATF1500A-10AU is the direct substitute for the obsolete ATF1500A-10AI. Both devices are electrically and mechanically identical across all specified parameters. The primary distinction is product status and regulatory compliance: the ATF1500A-10AU maintains active production status and achieves ROHS3 compliance, whereas the ATF1500A-10AI is obsolete and RoHS non-compliant. For new designs and ongoing production, the ATF1500A-10AU is the appropriate selection. The ATF1500A-10AU is available in tray packaging with verified programmability status, supporting seamless integration into existing designs originally specified for the ATF1500A-10AI.

Frequently Asked Questions (FAQ)

Q: Are the ATF1500A-10AI and ATF1500A-10AU pin-for-pin compatible?

A: Yes. Both devices use the 44-TQFP package with identical pin assignments, macrocell architecture, and I/O configuration. No PCB redesign is required for substitution.

Q: What is the difference between the ATF1500A-10AI and ATF1500A-10AU?

A: The devices are functionally equivalent. The ATF1500A-10AU is the active production variant with ROHS3 compliance, while the ATF1500A-10AI is obsolete and RoHS non-compliant. Both support identical electrical specifications and in-system programming.

Q: Can the ATF1500A-10AU be used as a direct replacement in existing designs?

A: Yes. The ATF1500A-10AU provides direct substitution without design modifications. Electrical characteristics, timing specifications, and package dimensions are identical.

Q: What packaging options are available for these devices?

A: The ATF1500A-10AI is supplied in standard packaging, while the ATF1500A-10AU is available in tray packaging. Both use the 44-TQFP (10x10) surface mount package.

Q: Are there any compliance differences between these parts?

A: The ATF1500A-10AU meets ROHS3 compliance requirements, while the ATF1500A-10AI does not. Both devices are REACH Unaffected and classified under ECCN EAR99.