ATF1500A-7JC Equivalent & Substitute Parts

Part Overview

The ATF1500A-7JC 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 new design implementations. The ATF1500A-7JC operates within the 0°C to 70°C temperature range with a maximum propagation delay of 7.5 nanoseconds and requires a 4.75V to 5.25V supply voltage.

Substiute Parts

ATF1500A-7JC

Microchip TechnologyIn Stock: 1001ATF1500A-7JC Datasheet

Current PartRFQ

ATF1502AS-7JX44

Microchip TechnologyIn Stock: 2307ATF1502AS-7JX44 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATF1500A-7JC 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 Configuration: Both must use the 44-LCC (J-Lead) package with identical 16.6x16.6mm dimensions for mechanical compatibility
• Electrical Specifications: Propagation delay (7.5 ns maximum), supply voltage range (4.75V ~ 5.25V), and operating temperature (0°C ~ 70°C) must be matched
• Programming Interface: Both must support In System Programmable (ISP) functionality
• Series Compatibility: Both devices belong to the ATF15xx series from Microchip Technology

The ATF1502AS-7JX44 meets all substitution criteria, providing identical functional and mechanical specifications while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The ATF1502AS-7JX44 is the direct substitute for the ATF1500A-7JC. Both devices share identical functional specifications, electrical characteristics, and physical packaging. The ATF1502AS-7JX44 offers significant advantages in terms of product lifecycle status and regulatory compliance. As an active product, the ATF1502AS-7JX44 ensures long-term availability and supply chain stability. The device achieves ROHS3 compliance, meeting current environmental and regulatory requirements, whereas the ATF1500A-7JC is non-compliant. The ATF1502AS-7JX44 also provides enhanced program/erase cycle endurance (minimum 10,000 cycles versus 100 cycles), supporting extended operational lifespans in reprogrammable applications.

Frequently Asked Questions (FAQ)

Q: Can the ATF1502AS-7JX44 directly replace the ATF1500A-7JC in existing designs?

A: Yes. Both devices provide identical macrocell count (32), I/O pin count (32), propagation delay (7.5 ns maximum), supply voltage range (4.75V ~ 5.25V), operating temperature range (0°C ~ 70°C), and package configuration (44-LCC). Pin-for-pin compatibility and functional equivalence are confirmed.

Q: What are the key differences between these two parts?

A: The primary differences are product status and compliance certifications. The ATF1502AS-7JX44 is an active product with ROHS3 compliance, while the ATF1500A-7JC is obsolete and RoHS non-compliant. The ATF1502AS-7JX44 also supports significantly higher program/erase cycle endurance (10,000 minimum cycles versus 100 cycles).

Q: Are there any package or mounting considerations when substituting?

A: No. Both devices use identical 44-pin PLCC packaging with 16.6x16.6mm dimensions and surface mount configuration. PCB layout and assembly processes require no modification.

Q: Does the substitute part require different programming procedures?

A: Both devices support In System Programmable (ISP) functionality within the ATF15xx series. Programming interface compatibility is maintained.

Q: What is the moisture sensitivity difference, and does it affect handling?

A: The ATF1500A-7JC has MSL 2 (1 Year floor life), while the ATF1502AS-7JX44 has MSL 3 (168 Hours floor life). The substitute requires more careful moisture control during storage and handling, with a shorter allowable exposure window before reflow soldering.