ATF1502AS-7JC44 Equivalent & Substitute Parts

Part Overview

The ATF1502AS-7JC44 is a Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology, featuring 32 macrocells and 32 I/O pins in a 44-pin PLCC 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-7JC44

Microchip TechnologyIn Stock: 1172ATF1502AS-7JC44 Datasheet

Current PartRFQ

ATF1502AS-7JX44

Microchip TechnologyIn Stock: 2307ATF1502AS-7JX44 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF1502AS-7JC44 is determined by strict equivalence across the following critical parameters:

• Macrocell count: 32 macrocells
• I/O pin count: 32 pins
• Propagation delay: 7.5 ns maximum
• Supply voltage range: 4.75V ~ 5.25V
• Package type: 44-pin PLCC with J-Lead configuration
• Programmable architecture: In-system programmable with minimum 10K cycles
• Operating temperature range: 0°C ~ 70°C

The ATF1502AS-7JX44 meets all electrical and mechanical substitution criteria. The primary distinction between the main part and its substitute relates to product status, packaging format, and compliance certifications rather than functional performance parameters.

Parameter Comparison

Engineering Selection Recommendations

The ATF1502AS-7JX44 is the direct functional equivalent of the ATF1502AS-7JC44. Selection of the substitute part is justified on the following grounds:

• The ATF1502AS-7JX44 maintains active product status, ensuring continued availability and manufacturing support from Microchip Technology.
• The substitute part achieves ROHS3 compliance, meeting current environmental and regulatory requirements, whereas the main part is RoHS non-compliant.
• Both parts are electrically and mechanically identical across all specified performance parameters, including macrocell architecture, I/O configuration, propagation delay, and supply voltage specifications.
• The substitute part carries REACH Unaffected status, consistent with the main part.

For applications requiring RoHS compliance or long-term component availability, the ATF1502AS-7JX44 is the appropriate selection. The difference in Moisture Sensitivity Level (MSL 2 versus MSL 3) reflects standard handling and storage protocol variations and does not affect functional equivalence.

Frequently Asked Questions (FAQ)

Q: Are the ATF1502AS-7JC44 and ATF1502AS-7JX44 electrically interchangeable?

A: Yes. Both parts are electrically identical across all specified parameters: 32 macrocells, 32 I/O pins, 7.5 ns propagation delay, 4.75V–5.25V supply voltage, and in-system programmable architecture with minimum 10K program/erase cycles.

Q: What is the difference between the two part numbers?

A: The primary differences are product status (obsolete versus active), RoHS compliance (non-compliant versus ROHS3 compliant), and Moisture Sensitivity Level (MSL 2 versus MSL 3). Functional performance and package configuration are identical.

Q: Can I use the ATF1502AS-7JX44 as a direct replacement in existing designs?

A: Yes. The substitute part is mechanically and electrically compatible with the original design. No circuit modifications are required. Existing firmware and programming files are compatible without alteration.

Q: Does the packaging format differ between these parts?

A: No. Both parts use the 44-pin PLCC package with J-Lead configuration (16.6x16.6 mm). Surface mount assembly procedures remain unchanged.

Q: What is the significance of the different MSL ratings?

A: MSL (Moisture Sensitivity Level) indicates the maximum time a component can be stored at specified humidity levels before baking is required. MSL 2 allows 1 year storage, while MSL 3 allows 168 hours. This affects component handling and storage protocols but does not impact electrical performance or functional equivalence.

Q: Is the ATF1502AS-7JX44 suitable for new designs?

A: Yes. The active product status and ROHS3 compliance make this part suitable for new designs requiring current environmental standards and long-term component availability.