EPM7032STC44-5 Equivalent & Substitute Parts

Part Overview

The EPM7032STC44-5 is a Complex Programmable Logic Device (CPLD) from Intel's MAX® 7000S series, designed for embedded applications requiring in-system programmability. This device features 32 macrocells, 600 gates, and 36 I/O pins in a 44-pin TQFP package with a maximum propagation delay of 5 nanoseconds.

The EPM7032STC44-5 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements for systems utilizing this CPLD.

Substiute Parts

EPM7032STC44-5

IntelIn Stock: 20248EPM7032STC44-5 Datasheet

Current PartRFQ

ATF1502AS-7AX44

Microchip TechnologyIn Stock: 9038ATF1502AS-7AX44 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EPM7032STC44-5 are identified based on the following critical parameters that determine functional and mechanical compatibility:

Core Compatibility Criteria:

• Number of Macrocells: 32 (exact match required)
• Package Type: 44-TQFP (10x10) (exact match required)
• Programmable Type: In System Programmable (functional equivalence)
• Voltage Supply Range: 4.75V ~ 5.25V (compatible operating range)
• Operating Temperature: 0°C ~ 70°C (TA) (compatible range)
• Mounting Type: Surface Mount (mechanical compatibility)

Allowable Variations:

• Delay Time tpd(1) Max: May increase from 5 ns to 7.5 ns (performance degradation acceptable for functional substitution)
• Number of I/O: May decrease from 36 to 32 (reduced I/O availability)
• RoHS Status: May improve from non-compliant to compliant (beneficial change)
• Product Status: May transition from obsolete to active (beneficial for availability)

The ATF1502AS-7AX44 meets all core compatibility criteria and allowable variation parameters, qualifying it as a valid substitute for the EPM7032STC44-5.

Parameter Comparison

Engineering Selection Recommendations

The ATF1502AS-7AX44 is a valid substitute for the EPM7032STC44-5 based on the following engineering factors:

Product Status: The EPM7032STC44-5 is obsolete, while the ATF1502AS-7AX44 is active. This transition ensures long-term component availability and supply chain continuity.

Compliance and Certifications: The ATF1502AS-7AX44 achieves ROHS3 compliance, compared to the non-compliant status of the original part. Both devices maintain identical REACH status (REACH Unaffected) and ECCN/HTSUS classifications, ensuring regulatory consistency.

Functional Equivalence: Both devices support in-system programmability with identical voltage supply ranges (4.75V ~ 5.25V) and operating temperature ranges (0°C ~ 70°C). The ATF1502AS-7AX44 provides verified programmability with a minimum of 10,000 program/erase cycles.

Design Considerations: The ATF1502AS-7AX44 exhibits a maximum propagation delay of 7.5 ns compared to 5 ns for the original part. Designs with timing-critical paths must verify that this 2.5 ns increase does not violate system timing requirements. The reduction in I/O from 36 to 32 pins requires verification that all required signal connections can be accommodated within the available I/O count.

Frequently Asked Questions (FAQ)

Q: Can the ATF1502AS-7AX44 directly replace the EPM7032STC44-5 without design modifications?

A: The ATF1502AS-7AX44 is mechanically and electrically compatible in terms of package type, voltage supply, and operating temperature. However, the reduction in I/O pins from 36 to 32 requires verification that your design does not utilize more than 32 I/O connections. Additionally, the increased propagation delay (7.5 ns vs. 5 ns) must be evaluated against timing-critical paths in your application.

Q: What is the significance of the 2.5 ns increase in propagation delay?

A: The ATF1502AS-7AX44 has a maximum propagation delay of 7.5 ns compared to 5 ns for the EPM7032STC44-5. This difference is relevant only for designs with strict timing constraints. If your system operates at frequencies where this delay increase would violate setup/hold time requirements or introduce unacceptable latency, additional timing analysis is required.

Q: Are there differences in programmability between these devices?

A: Both devices support in-system programmability. The ATF1502AS-7AX44 specifies a minimum of 10,000 program/erase cycles, ensuring adequate reprogrammability for development and field updates. Programming methodology and tool compatibility should be verified with device datasheets and development environment documentation.

Q: What is the impact of the I/O pin reduction from 36 to 32?

A: The ATF1502AS-7AX44 provides 32 I/O pins compared to 36 on the original part. This reduction of 4 pins requires verification that your PCB design and firmware do not depend on all 36 I/O connections. If your application requires more than 32 I/O pins, this substitute is not suitable.

Q: Does the improved RoHS compliance affect compatibility?

A: The ATF1502AS-7AX44 is ROHS3 compliant, while the EPM7032STC44-5 is non-compliant. This improvement does not negatively impact compatibility and may be beneficial for regulatory compliance in new designs or updated manufacturing processes.

Q: Are the package dimensions identical?

A: Both devices use a 44-TQFP (10x10) package. Physical dimensions and pin assignments are identical, ensuring PCB footprint compatibility. Pin-to-pin functionality must be verified against specific design requirements, particularly regarding the reduced I/O count.