XC9536-7PC44C Equivalent & Substitute Parts

Part Overview

The XC9536-7PC44C 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 7.5 nanoseconds. The XC9536-7PC44C is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support, design updates, and procurement continuity.

Substiute Parts

XC9536-7PC44C

AMDIn Stock: 1245XC9536-7PC44C Datasheet

Current PartRFQ

ATF1502AS-7JX44

Microchip TechnologyIn Stock: 2307ATF1502AS-7JX44 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XC9536-7PC44C is determined by alignment of the following critical parameters:

Electrical Compatibility:

• Propagation delay (tpd) of 7.5 ns maximum
• Internal voltage supply range of 4.75V to 5.25V
• Operating temperature range of 0°C to 70°C
• In-system programmability with minimum 10K program/erase cycles

Physical Compatibility:

• 44-pin PLCC package with J-Lead configuration
• Surface mount mounting type
• Moisture sensitivity level 3 (168 hours)

Functional Compatibility:

• CPLD architecture with macrocell-based logic implementation
• Sufficient I/O count and logic capacity for target application

The ATF1502AS-7JX44 from Microchip Technology meets these substitution criteria. While the ATF1502AS-7JX44 contains 32 macrocells and 32 I/O pins compared to the XC9536-7PC44C's 36 macrocells and 34 I/O pins, both devices share identical electrical performance characteristics, package specifications, and programmability requirements. The reduced logic capacity of the substitute must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The XC9536-7PC44C is classified as obsolete, while the ATF1502AS-7JX44 maintains active product status. For new designs or system updates requiring long-term component availability, the ATF1502AS-7JX44 provides supply continuity and manufacturer support.

Compliance and Certification: The ATF1502AS-7JX44 is ROHS3 compliant, whereas the XC9536-7PC44C is RoHS non-compliant. Applications subject to RoHS regulations or environmental compliance requirements should prioritize the Microchip substitute. Both devices maintain REACH unaffected status and identical HTSUS classification.

Logic Capacity Assessment: The ATF1502AS-7JX44 provides 32 macrocells and 32 I/O pins against the XC9536-7PC44C's 36 macrocells and 34 I/O pins. Design migration to the substitute requires verification that application logic fits within the reduced macrocell count and that all required I/O signals can be accommodated within 32 pins.

Electrical and Timing Performance: Both devices deliver identical propagation delay specifications (7.5 ns maximum), voltage supply ranges (4.75V to 5.25V), and operating temperature ranges (0°C to 70°C). Timing-critical applications experience no performance degradation with substitution.

Package and Thermal Characteristics: Both devices employ 44-pin PLCC packages with J-lead configuration and identical moisture sensitivity levels. Physical board layout compatibility is maintained, with negligible dimensional variation (16.59mm versus 16.6mm).

Frequently Asked Questions (FAQ)

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

A: Direct replacement is possible only if the application logic requires no more than 32 macrocells and 32 I/O pins. The XC9536-7PC44C provides 36 macrocells and 34 I/O pins. Designs utilizing all available resources on the original device require logic optimization or redesign to fit the substitute's reduced capacity.

Q: Are the package dimensions identical between these devices?

A: Both devices use 44-pin PLCC packages with J-lead configuration. Supplier package dimensions are 16.59mm × 16.59mm (XC9536-7PC44C) and 16.6mm × 16.6mm (ATF1502AS-7JX44). This 0.01mm variation is negligible for PCB layout purposes.

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

A: The XC9536-7PC44C is RoHS non-compliant while the ATF1502AS-7JX44 is ROHS3 compliant. Applications subject to RoHS regulations, including EU market products and many industrial/automotive applications, require the compliant substitute. Legacy systems without RoHS requirements may use either device.

Q: Do both devices support in-system programming?

A: Yes. Both the XC9536-7PC44C and ATF1502AS-7JX44 support in-system programmability with a minimum of 10,000 program/erase cycles. Programming methodology and toolchain compatibility must be verified for specific development environments.

Q: What are the electrical performance implications of substitution?

A: No electrical performance degradation occurs. Both devices specify identical maximum propagation delay (7.5 ns), voltage supply ranges (4.75V to 5.25V), and operating temperature ranges (0°C to 70°C). Timing-critical applications experience equivalent performance.

Q: Is the ATF1502AS-7JX44 suitable for new product designs?

A: Yes. The ATF1502AS-7JX44 maintains active product status with established supply chains and manufacturer support. For applications where 32 macrocells and 32 I/O pins satisfy design requirements, this device is appropriate for new development.

Q: How should I handle moisture sensitivity during storage and handling?

A: Both devices carry MSL 3 rating (168 hours). Standard moisture control procedures for surface-mount components apply: maintain storage in dry environments, use desiccant packaging, and follow reflow soldering guidelines within the specified moisture exposure window.