ATF1500A-15JC Equivalent & Substitute Parts

Part Overview

The ATF1500A-15JC 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, making identification of compatible alternatives essential for ongoing system support and component procurement. The ATF1500A-15JC operates with a maximum propagation delay of 15 nanoseconds and requires a 4.75V to 5.25V internal supply voltage.

Substiute Parts

ATF1500A-15JC

Microchip TechnologyIn Stock: 6527ATF1500A-15JC Datasheet

Current PartRFQ

ATF1500A-10JU

Microchip TechnologyIn Stock: 2631ATF1500A-10JU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATF1500A-15JC is determined by the following critical parameters:

• Macrocell and I/O Count: Both the main part and substitute must provide 32 macrocells and 32 I/O pins to maintain functional equivalence
• Package Type: Both must use the 44-LCC (J-Lead) package with identical physical dimensions (16.6x16.6 mm) to ensure PCB compatibility
• Mounting Type: Both must be surface mount devices
• Programmable Type: Both must support In System Programmable functionality with minimum 100 program/erase cycles
• Base Product Number: Both must belong to the ATF15xx series

The ATF1500A-10JU meets all substitution criteria and is identified as a direct equivalent within the same product family.

Parameter Comparison

Engineering Selection Recommendations

The ATF1500A-10JU is the direct substitute for the obsolete ATF1500A-15JC. Key considerations for component selection:

Product Status: The ATF1500A-10JU maintains active product status, ensuring continued availability and manufacturer support, whereas the ATF1500A-15JC is obsolete.

Compliance: The ATF1500A-10JU is ROHS3 compliant, meeting current environmental regulations. The ATF1500A-15JC is RoHS non-compliant, which may present procurement restrictions in regulated markets.

Performance Characteristics: The ATF1500A-10JU provides superior propagation delay performance (10 ns versus 15 ns) and an extended operating temperature range (-40°C to 85°C versus 0°C to 70°C), offering greater design margin for demanding applications.

Electrical Specifications: The ATF1500A-10JU features a wider voltage supply tolerance (4.5V to 5.5V versus 4.75V to 5.25V), providing improved robustness in systems with variable power supply conditions.

Frequently Asked Questions (FAQ)

Q: Can the ATF1500A-10JU directly replace the ATF1500A-15JC in existing designs?

A: Yes. Both devices share identical macrocell count (32), I/O pin count (32), package type (44-LCC), and physical dimensions (16.6x16.6 mm). Pin-for-pin compatibility is maintained, and both support In System Programmable functionality.

Q: What are the performance differences between these parts?

A: The ATF1500A-10JU provides faster propagation delay (10 ns maximum versus 15 ns) and operates across a wider temperature range (-40°C to 85°C versus 0°C to 70°C). These represent performance improvements rather than limitations.

Q: Are there packaging differences between the ATF1500A-15JC and ATF1500A-10JU?

A: No. Both devices use identical 44-PLCC packaging with J-lead configuration and matching physical dimensions. PCB footprints are interchangeable.

Q: What is the significance of the RoHS compliance difference?

A: The ATF1500A-10JU is ROHS3 compliant, meeting current environmental and regulatory requirements. The ATF1500A-15JC is RoHS non-compliant, which may restrict procurement in regulated industries and markets with environmental compliance mandates.

Q: Are the voltage supply specifications compatible?

A: Both devices operate within overlapping voltage ranges. The ATF1500A-10JU accepts 4.5V to 5.5V, while the ATF1500A-15JC requires 4.75V to 5.25V. Systems designed for the ATF1500A-15JC will operate correctly with the ATF1500A-10JU, with the substitute offering improved tolerance margins.

Q: What is the moisture sensitivity level for both parts?

A: Both devices are rated MSL 2 with a 1-year floor life, indicating identical moisture handling and storage requirements.