XC9536-5PC44C Equivalent & Substitute Parts

Part Overview

The XC9536-5PC44C is a Complex Programmable Logic Device (CPLD) manufactured by AMD, belonging to the XC9500 series. This device features 36 macrocells, 800 gates, and 34 I/O pins in a 44-pin PLCC package with a maximum propagation delay of 5 nanoseconds. The XC9536-5PC44C is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and system maintenance.

Substiute Parts

XC9536-5PC44C

AMDIn Stock: 1193XC9536-5PC44C Datasheet

Current PartRFQ

ATF1502AS-7JX44

Microchip TechnologyIn Stock: 2307ATF1502AS-7JX44 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XC9536-5PC44C is determined by compatibility across the following critical parameters:

Package Compatibility: Both the main part and substitute must utilize the 44-pin PLCC package format to ensure direct socket compatibility and PCB layout alignment.

Electrical Specifications: Voltage supply range (4.75V ~ 5.25V) and operating temperature range (0°C ~ 70°C) must be maintained to ensure functional operation within existing system designs.

Programmable Architecture: In-system programmability with minimum 10K program/erase cycles is required to support field programming and reconfiguration capabilities.

Logic Density: Macrocell count and I/O pin count determine functional capacity. Substitute devices must provide sufficient logic resources to accommodate design requirements.

Propagation Delay: Maximum delay time specifications affect system timing performance. Substitutes with equal or faster propagation delay maintain or improve timing margins.

The ATF1502AS-7JX44 meets these substitution criteria through identical package format, matching voltage and temperature specifications, equivalent programmable architecture, and compatible I/O configuration.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The XC9536-5PC44C is classified as obsolete, making the ATF1502AS-7JX44 the appropriate alternative for new designs and system replacements. The ATF1502AS-7JX44 maintains active product status with verified programmability and current manufacturing availability.

Compliance and Certification: The ATF1502AS-7JX44 is ROHS3 compliant, providing environmental compliance advantages over the non-compliant XC9536-5PC44C. Both devices maintain REACH unaffected status and identical HTSUS classification.

Logic Density Trade-off: The ATF1502AS-7JX44 provides 32 macrocells and 32 I/O pins compared to the XC9536-5PC44C's 36 macrocells and 34 I/O pins. Design implementations utilizing fewer than 32 macrocells and 32 I/O pins are directly compatible. Designs requiring the full 36-macrocell capacity of the original device require architectural evaluation.

Timing Performance: The ATF1502AS-7JX44 specifies a maximum propagation delay of 7.5 nanoseconds compared to the XC9536-5PC44C's 5 nanoseconds. System designs with timing margins exceeding 2.5 nanoseconds accommodate this specification difference. Designs with tighter timing requirements require detailed timing analysis.

Package and Electrical Compatibility: Both devices utilize identical 44-pin PLCC packaging and matching voltage supply specifications, ensuring direct PCB compatibility and electrical interchangeability within the specified parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can the ATF1502AS-7JX44 directly replace the XC9536-5PC44C in existing designs?

A: Direct replacement is possible when design logic requirements do not exceed 32 macrocells and 32 I/O pins, and system timing margins accommodate the 7.5-nanosecond maximum propagation delay specification. The identical 44-pin PLCC package format ensures physical and electrical socket compatibility.

Q: What are the key differences between these two CPLD devices?

A: The primary differences are macrocell count (36 versus 32), I/O pin count (34 versus 32), propagation delay (5 ns versus 7.5 ns), product status (obsolete versus active), and RoHS compliance (non-compliant versus ROHS3 compliant). Voltage supply and operating temperature ranges are identical.

Q: How do I determine if my design fits within the ATF1502AS-7JX44 logic capacity?

A: Evaluate your design's macrocell utilization and I/O pin requirements. If your implementation uses 32 or fewer macrocells and 32 or fewer I/O pins, the device provides sufficient logic density. Designs exceeding these thresholds require alternative solutions.

Q: Does the 2.5-nanosecond timing difference affect system performance?

A: The timing impact depends on your system's critical path and timing margins. If your design includes timing margins greater than 2.5 nanoseconds, the ATF1502AS-7JX44 operates within specification. Designs with tighter timing requirements require detailed timing analysis and potential architectural modifications.

Q: Are the package dimensions identical between these devices?

A: Both devices utilize 44-pin PLCC packages with nearly identical dimensions (16.59x16.59 mm versus 16.6x16.6 mm). These minimal dimensional differences do not affect PCB layout or socket compatibility.

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

A: The ATF1502AS-7JX44 is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components. The XC9536-5PC44C's non-compliant status may restrict its use in applications subject to RoHS regulations.

Q: Can I use the ATF1502AS-7JX44 in new product designs?

A: Yes. The ATF1502AS-7JX44 is an active product with verified programmability and current manufacturing availability, making it suitable for new designs. The device's ROHS3 compliance and active status provide long-term supply assurance and regulatory alignment.