XC9536-7PC44I Equivalent & Substitute Parts

Part Overview

The XC9536-7PC44I is a Complex Programmable Logic Device (CPLD) manufactured by AMD, belonging to the XC9500 series. This device integrates 36 macrocells with 800 gates and supports in-system programmable functionality with a maximum propagation delay of 7.5 nanoseconds. The component is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility while meeting current manufacturing and compliance standards.

Substiute Parts

XC9536-7PC44I

AMDIn Stock: 1518XC9536-7PC44I Datasheet

Current PartRFQ

ATF1502AS-7JX44

Microchip TechnologyIn Stock: 2307ATF1502AS-7JX44 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the XC9536-7PC44I is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Propagation delay (tpd) of 7.5 nanoseconds maximum
• In-system programmable functionality with minimum 10,000 program/erase cycles
• 44-pin LCC (J-Lead) package configuration
• Surface mount mounting type

Functional Capacity Criteria:

• Macrocell count and I/O pin count must support the original design requirements
• Logic gate density sufficient for circuit implementation

Environmental and Compliance Criteria:

• Operating temperature range compatibility
• Moisture sensitivity level (MSL 3)
• Package dimensions (16.59mm × 16.59mm nominal)

The ATF1502AS-7JX44 from Microchip Technology meets these substitution criteria with equivalent timing performance and package specifications, though with reduced macrocell count (32 versus 36) and I/O count (32 versus 34). This reduction requires design verification to confirm functional equivalence for specific applications.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The ATF1502AS-7JX44 provides electrical and timing equivalence to the XC9536-7PC44I with identical propagation delay specifications and compatible package geometry. Both devices support in-system programming with equivalent cycle ratings and moisture sensitivity classifications.

Product Status Consideration:

The XC9536-7PC44I is classified as obsolete, making the active-status ATF1502AS-7JX44 the appropriate selection for new production and long-term supply continuity.

Compliance Advantage:

The ATF1502AS-7JX44 achieves ROHS3 compliance, whereas the XC9536-7PC44I is RoHS non-compliant. This distinction is significant for applications subject to environmental regulations and procurement standards.

Design Verification Requirement:

The ATF1502AS-7JX44 provides 32 macrocells and 32 I/O pins compared to the original 36 macrocells and 34 I/O pins. Circuit designs utilizing the full capacity of the XC9536-7PC44I require functional assessment to confirm compatibility with the reduced resource allocation of the substitute device.

Operating Temperature Range:

The ATF1502AS-7JX44 operates within 0°C to 70°C, whereas the XC9536-7PC44I supports -40°C to 85°C. Applications requiring extended temperature operation must evaluate this specification difference.

Voltage Supply Range:

The ATF1502AS-7JX44 operates within 4.75V to 5.25V, a narrower range than the XC9536-7PC44I (4.5V to 5.5V). Power supply design must accommodate this tighter specification.

Frequently Asked Questions (FAQ)

Q: Can the ATF1502AS-7JX44 directly replace the XC9536-7PC44I in existing designs?

A: Direct replacement is possible only if the design does not utilize more than 32 macrocells and 32 I/O pins. The reduced resource count of the ATF1502AS-7JX44 requires design verification. Timing performance is equivalent at 7.5 nanoseconds maximum propagation delay, and both devices support in-system programming.

Q: What are the key differences in electrical specifications?

A: The primary electrical differences are the voltage supply range (ATF1502AS-7JX44: 4.75V–5.25V versus XC9536-7PC44I: 4.5V–5.5V) and operating temperature range (ATF1502AS-7JX44: 0°C–70°C versus XC9536-7PC44I: -40°C–85°C). Propagation delay specifications are identical at 7.5 nanoseconds maximum.

Q: Are the packages physically compatible?

A: Both devices use 44-pin LCC (J-Lead) packages with nominal dimensions of 16.59mm × 16.59mm (XC9536-7PC44I) and 16.6mm × 16.6mm (ATF1502AS-7JX44). These dimensions are equivalent for PCB layout and assembly purposes.

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

A: The XC9536-7PC44I is RoHS non-compliant, while the ATF1502AS-7JX44 is ROHS3 compliant. For applications subject to environmental regulations or customer procurement requirements mandating RoHS compliance, the ATF1502AS-7JX44 is the appropriate selection.

Q: How do the macrocell and I/O counts affect substitution?

A: The XC9536-7PC44I provides 36 macrocells and 34 I/O pins, while the ATF1502AS-7JX44 provides 32 macrocells and 32 I/O pins. Designs utilizing the full capacity of the original device require functional assessment to confirm that logic functions and I/O requirements can be accommodated within the reduced resource allocation of the substitute.

Q: Are programming and erase cycle ratings equivalent?

A: Both devices support in-system programmable functionality with a minimum of 10,000 program/erase cycles. Moisture sensitivity level (MSL 3, 168 hours) is identical for both devices.

Q: What is the inventory status of these parts?

A: The XC9536-7PC44I has 1,452 pieces in stock as new original inventory. The ATF1502AS-7JX44 has 2,252 pieces in stock as new original inventory, providing greater supply availability.