ATF1504AS-7JC44 Equivalent & Substitute Parts

Part Overview

The ATF1504AS-7JC44 is a Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology, featuring 64 macrocells and 32 I/O pins in a 44-pin PLCC package. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

The ATF1504AS-7JC44 operates within the ATF15xx series and supports in-system programming with a minimum of 10,000 program/erase cycles. Due to its obsolete status, sourcing direct replacements requires evaluation of available substitute components that maintain electrical and mechanical compatibility.

Substiute Parts

ATF1504AS-7JC44

Microchip TechnologyIn Stock: 850ATF1504AS-7JC44 Datasheet

Current PartRFQ

ATF1504AS-7JX44

Microchip TechnologyIn Stock: 1257ATF1504AS-7JX44 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the ATF1504AS-7JC44 are identified based on strict equivalence across the following critical parameters:

• Manufacturer: Microchip Technology
• Series: ATF15xx
• Macrocell Count: 64
• I/O Pin Count: 32
• Maximum Propagation Delay: 7.5 ns
• Supply Voltage Range: 4.75V ~ 5.25V
• Operating Temperature Range: 0°C ~ 70°C
• Package Type: 44-PLCC (44-LCC J-Lead)
• Mounting Configuration: Surface Mount
• Programming Capability: In System Programmable

The ATF1504AS-7JX44 meets all electrical and mechanical specifications required for direct substitution. The primary distinction between the main part and its substitute relates to product status, packaging format, and regulatory compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The ATF1504AS-7JX44 is the direct functional equivalent of the ATF1504AS-7JC44. Both components share identical electrical specifications, pin configurations, and performance characteristics within the ATF15xx CPLD family.

The ATF1504AS-7JX44 is classified as active product status, ensuring continued availability and manufacturing support. This component achieves ROHS3 compliance, meeting current environmental and regulatory requirements. The ATF1504AS-7JC44, being obsolete and RoHS non-compliant, presents long-term sourcing and regulatory constraints.

For new designs or system refreshes, the ATF1504AS-7JX44 is the appropriate selection. For legacy system maintenance requiring the exact original part number, the ATF1504AS-7JC44 remains available in limited inventory (794 units) but should be evaluated against compliance and availability timelines.

Frequently Asked Questions (FAQ)

Q: Can the ATF1504AS-7JX44 directly replace the ATF1504AS-7JC44 in existing designs?

A: Yes. Both components are electrically and mechanically identical. They share the same macrocell count (64), I/O configuration (32 pins), propagation delay (7.5 ns), supply voltage range (4.75V ~ 5.25V), operating temperature range (0°C ~ 70°C), and 44-PLCC package footprint. Pin-for-pin compatibility is confirmed.

Q: What is the difference between the ATF1504AS-7JC44 and ATF1504AS-7JX44?

A: The primary differences are product status, packaging format, and regulatory compliance. The ATF1504AS-7JC44 is obsolete and RoHS non-compliant. The ATF1504AS-7JX44 is active product, ROHS3 compliant, and supplied in tube packaging. Electrical performance and functionality are identical.

Q: Are there any timing or performance differences between these parts?

A: No. Both components specify identical maximum propagation delay of 7.5 ns and operate within the same voltage and temperature ranges.

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

A: The ATF1504AS-7JC44 has MSL 2 (1 Year storage), while the ATF1504AS-7JX44 has MSL 3 (168 Hours storage). This affects component handling and storage procedures but does not impact electrical compatibility or performance in operational circuits.

Q: Is the 44-PLCC package identical between both parts?

A: Yes. Both components use the 44-PLCC package with J-lead configuration and identical physical dimensions (16.6x16.6 mm). PCB footprints and socket compatibility are identical.