ATF1502AS-7AC44 Equivalent & Substitute Parts

Part Overview

The ATF1502AS-7AC44 is a Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology, 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 production requirements. The part operates within the ATF15xx series and supports in-system programming with a minimum of 10,000 program/erase cycles.

Substiute Parts

ATF1502AS-7AC44

Microchip TechnologyIn Stock: 846ATF1502AS-7AC44 Datasheet

Current PartRFQ

ATF1502AS-7AX44

Microchip TechnologyIn Stock: 9038ATF1502AS-7AX44 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF1502AS-7AC44 is determined by strict equivalence across the following critical parameters:

• Macrocell count: 32 macrocells
• I/O pin count: 32 pins
• Package type: 44-TQFP (10x10)
• Propagation delay: 7.5 ns maximum
• Supply voltage range: 4.75V ~ 5.25V
• Operating temperature range: 0°C ~ 70°C
• Programming capability: In-system programmable

The ATF1502AS-7AX44 meets all electrical and mechanical requirements for direct substitution. The primary distinction between these parts lies in product status and compliance certifications rather than functional performance.

Parameter Comparison

Engineering Selection Recommendations

The ATF1502AS-7AX44 is the direct functional equivalent of the ATF1502AS-7AC44. Selection between these parts should be based on the following criteria:

Product Status: The ATF1502AS-7AC44 is classified as obsolete. The ATF1502AS-7AX44 maintains active product status with Microchip Technology, ensuring continued availability and manufacturing support.

Compliance Certifications: The ATF1502AS-7AX44 is ROHS3 compliant, whereas the ATF1502AS-7AC44 is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements, the ATF1502AS-7AX44 is the appropriate selection.

Programmable Verification: The ATF1502AS-7AX44 is verified as programmable through DiGi-Electronics, while the ATF1502AS-7AC44 status is not verified.

Inventory and Supply: The ATF1502AS-7AX44 maintains significantly higher inventory levels (8,934 pcs) compared to the ATF1502AS-7AC44 (755 pcs), supporting long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Are the ATF1502AS-7AC44 and ATF1502AS-7AX44 electrically interchangeable?

A: Yes. Both devices share identical electrical specifications including macrocell count, I/O configuration, propagation delay, supply voltage range, and operating temperature range. They are functionally equivalent at the circuit level.

Q: What is the difference between the -7AC44 and -7AX44 suffix designations?

A: The suffix designations indicate packaging and compliance variations. The -7AC44 uses unspecified packaging and is RoHS non-compliant. The -7AX44 uses tray packaging and is ROHS3 compliant.

Q: Can I use the ATF1502AS-7AX44 as a direct replacement in existing designs?

A: Yes. The ATF1502AS-7AX44 is a direct substitute. No circuit modifications or design changes are required. The identical package footprint (44-TQFP 10x10) and pin configuration ensure mechanical and electrical compatibility.

Q: Why is the ATF1502AS-7AC44 classified as obsolete?

A: Microchip Technology has transitioned production to the ATF1502AS-7AX44, which offers improved compliance certifications and active manufacturing support. The obsolete status reflects the manufacturer's product lifecycle management.

Q: Are there any performance differences between these parts?

A: No. Both devices deliver identical performance specifications. Propagation delay, timing characteristics, and functional capabilities are equivalent.

Q: What packaging format is supplied with each part?

A: The ATF1502AS-7AC44 packaging format is not specified. The ATF1502AS-7AX44 is supplied in tray packaging, which is standard for surface-mount components in production environments.