XC9536XL-7PC44C Equivalent & Substitute Parts

Part Overview

The XC9536XL-7PC44C is a Complex Programmable Logic Device (CPLD) manufactured by AMD, featuring 36 macrocells and 800 gates in a 44-pin PLCC package. This device is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and production continuity. The part operates at 3V to 3.6V internal supply voltage with a maximum propagation delay of 7.5 nanoseconds and supports in-system programming with a minimum of 10,000 program/erase cycles.

Substiute Parts

XC9536XL-7PC44C

AMDIn Stock: 1508XC9536XL-7PC44C Datasheet

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ATF1502ASV-15JU44

Microchip TechnologyIn Stock: 3135ATF1502ASV-15JU44 Datasheet

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T13Q100F3C3

Efinix, Inc.In Stock: 1694T13Q100F3C3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the XC9536XL-7PC44C is determined by the following critical parameters:

Package Compatibility: The main part uses a 44-pin PLCC package (44-LCC J-Lead). Substitute parts must maintain identical or compatible pinout and physical dimensions to ensure direct board-level replacement without layout modifications.

Logic Capacity: The XC9536XL provides 36 macrocells and 800 gates. Substitute devices must offer equivalent or greater logic capacity to accommodate the original design's functional requirements.

I/O Count: The device provides 34 I/O pins. Substitute parts must support a minimum of 34 I/O to maintain signal connectivity.

Programmability: The XC9536XL supports in-system programming with a minimum of 10,000 program/erase cycles. Substitute devices must support equivalent or superior in-system programming capability.

Voltage Supply: Internal supply voltage ranges from 3V to 3.6V. Substitute parts must operate within compatible voltage ranges.

Propagation Delay: The maximum propagation delay of 7.5 nanoseconds defines timing performance. Substitute parts with equal or faster delay times maintain or improve timing characteristics.

Operating Temperature Range: The device operates from 0°C to 70°C. Substitute parts with extended or equivalent temperature ranges are acceptable.

Parameter Comparison

Engineering Selection Recommendations

ATF1502ASV-15JU44 (Microchip Technology): This substitute maintains the 44-pin PLCC package format, enabling direct board-level replacement without layout modifications. The device is currently in active production status, ensuring long-term availability. It supports equivalent in-system programming capability with 10,000 program/erase cycles and operates within the same 3V to 3.6V supply voltage range. The ATF1502ASV provides 32 macrocells and 32 I/O pins, which represents a reduction in logic capacity and I/O count compared to the XC9536XL. The maximum propagation delay of 15 nanoseconds is slower than the original 7.5 nanoseconds. This substitute is suitable for designs where the reduced logic capacity and I/O count are acceptable and timing margins permit the increased delay. The device is ROHS3 compliant, meeting modern environmental standards.

T13Q100F3C3 (Efinix, Inc.): This substitute is a Field Programmable Gate Array (FPGA) with significantly greater logic capacity (12,828 logic cells) and I/O count (65 pins), providing substantial headroom for design expansion. The device is currently in active production status. However, this substitute requires a different package format (100-LQFP versus 44-PLCC), necessitating board layout redesign and cannot serve as a direct pin-compatible replacement. The supply voltage requirement (1.15V to 1.25V) differs from the original device, requiring separate power supply design. This substitute is appropriate for new designs where board layout flexibility exists and the enhanced logic capacity provides design advantages. The device is ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can the ATF1502ASV-15JU44 be used as a direct replacement for the XC9536XL-7PC44C without board modifications?

A: The ATF1502ASV-15JU44 maintains the same 44-pin PLCC package format and J-Lead configuration, allowing direct board-level replacement without PCB layout changes. However, the reduced macrocell count (32 versus 36) and I/O count (32 versus 34) must be verified against the specific design requirements to ensure functional compatibility.

Q: What is the impact of the 15 nanosecond propagation delay in the ATF1502ASV-15JU44 compared to the 7.5 nanosecond delay of the XC9536XL-7PC44C?

A: The ATF1502ASV-15JU44 has a maximum propagation delay twice that of the original device. Designs with timing-critical paths must verify that the increased delay does not violate system timing requirements. Designs with adequate timing margins will not be affected.

Q: Why does the T13Q100F3C3 require board redesign?

A: The T13Q100F3C3 uses a 100-pin LQFP package, whereas the XC9536XL-7PC44C uses a 44-pin PLCC package. The different pin count, physical dimensions, and pinout configuration require complete PCB layout redesign. This substitute is not suitable for direct replacement but is appropriate for new designs requiring greater logic capacity.

Q: Are both substitute parts compatible with the original 3V to 3.6V supply voltage?

A: The ATF1502ASV-15JU44 operates within the same 3V to 3.6V supply voltage range as the original device. The T13Q100F3C3 requires a different supply voltage (1.15V to 1.25V) and cannot operate with the original power supply design without modification.

Q: What is the difference in logic capacity between the substitute parts and the original device?

A: The XC9536XL-7PC44C provides 36 macrocells and 800 gates. The ATF1502ASV-15JU44 provides 32 macrocells, representing a reduction of 4 macrocells. The T13Q100F3C3 provides 12,828 logic cells, representing a significant increase in capacity. Design requirements determine whether reduced or increased capacity is acceptable.

Q: Are the substitute parts currently available in production?

A: The ATF1502ASV-15JU44 and T13Q100F3C3 are both classified as active products in current production. The original XC9536XL-7PC44C is classified as obsolete and is no longer manufactured.

Q: Do the substitute parts meet modern environmental compliance standards?

A: Both substitute parts are ROHS3 compliant. The original XC9536XL-7PC44C is RoHS non-compliant. All three devices are REACH unaffected and carry the same ECCN and HTSUS classifications.