EPM3064ATC100-7 Equivalent & Substitute Parts

Part Overview

The EPM3064ATC100-7 is a Complex Programmable Logic Device (CPLD) from Intel's MAX® 3000A series, designed for embedded applications requiring in-system programmability. This device features 64 macrocells, 1250 gates, and 66 I/O pins in a 100-pin TQFP package with a maximum propagation delay of 7.5 ns.

The EPM3064ATC100-7 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and production requirements.

Substiute Parts

EPM3064ATC100-7

IntelIn Stock: 2965EPM3064ATC100-7 Datasheet

Current PartRFQ

ATF1504ASV-15AU100

Microchip TechnologyIn Stock: 1360ATF1504ASV-15AU100 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EPM3064ATC100-7 is determined by the following critical parameters:

Functional Equivalence Criteria:

• Package type: 100-TQFP (14x14) form factor
• Macrocell count: 64 macrocells minimum
• I/O pin count: Minimum 64 I/O pins
• Programmable type: In System Programmable capability
• Voltage supply range: 3V ~ 3.6V internal supply compatibility
• Mounting type: Surface Mount

Performance Considerations:

• Propagation delay (tpd): Maximum 15 ns acceptable for most legacy applications
• Operating temperature range: Extended or equivalent range

Compliance Factors:

• Moisture Sensitivity Level: MSL 3 or better
• REACH and ECCN classifications for regulatory alignment

The ATF1504ASV-15AU100 from Microchip Technology meets these substitution criteria through functional pin compatibility, identical package geometry, matching macrocell architecture, and compatible voltage specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: ATF1504ASV-15AU100

The ATF1504ASV-15AU100 is the recommended substitute for the obsolete EPM3064ATC100-7 based on the following factors:

Advantages:

• Active product status ensures long-term availability and supply chain continuity
• ROHS3 compliance aligns with current environmental and regulatory standards
• Identical package footprint (100-TQFP 14x14) enables direct PCB compatibility
• Matching macrocell count (64) and voltage supply range (3V ~ 3.6V) provide functional equivalence
• Extended operating temperature range (-40°C ~ 85°C) exceeds the original specification
• In-system programmability with documented program/erase cycle rating (minimum 10K cycles)

Design Considerations:

1. I/O Pin Count: The substitute provides 64 I/O pins versus 66 on the original part. Verify that your design does not require all 66 pins; if all pins are utilized, alternative solutions must be evaluated.

2. Propagation Delay: The substitute has a maximum propagation delay of 15 ns compared to 7.5 ns on the original. This 2x increase is acceptable for most legacy applications but must be verified against critical timing paths in your design. Non-critical logic paths will not be affected.

3. Compliance: The substitute meets ROHS3 and REACH requirements, making it suitable for new production runs and systems requiring environmental compliance.

4. Supply Chain: The substitute is in active production with documented inventory availability, eliminating obsolescence risk associated with the original part.

Frequently Asked Questions (FAQ)

Q: Can the ATF1504ASV-15AU100 be used as a direct pin-for-pin replacement?

A: The ATF1504ASV-15AU100 shares the same 100-TQFP package footprint and pinout compatibility for the majority of pins. However, the substitute has 64 I/O pins versus 66 on the original EPM3064ATC100-7. Verify that your design does not utilize all 66 I/O pins before proceeding with substitution.

Q: What is the impact of the increased propagation delay (15 ns vs. 7.5 ns)?

A: The substitute's 15 ns maximum propagation delay is acceptable for most legacy applications. Timing-critical paths operating near the original 7.5 ns specification must be re-evaluated. Non-critical logic paths will function without degradation. Perform timing analysis on your specific design to confirm compatibility.

Q: Is the ATF1504ASV-15AU100 suitable for new production?

A: Yes. The substitute is in active production status with ROHS3 compliance, making it appropriate for new manufacturing runs. The extended operating temperature range (-40°C ~ 85°C) provides additional design margin compared to the original specification (0°C ~ 70°C).

Q: Are there any programming differences between the two devices?

A: Both devices support in-system programmability (ISP). The substitute specifies a minimum of 10K program/erase cycles. Verify that your programming equipment and methodology are compatible with the ATF15xx series architecture.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both devices have an MSL rating of 3 (168 Hours). This requires standard moisture control procedures during storage and handling. Devices must be stored in dry conditions and baked according to IPC standards before reflow soldering.

Q: Does the substitute meet environmental compliance requirements?

A: The ATF1504ASV-15AU100 is ROHS3 compliant and REACH unaffected, meeting current environmental regulations. The original EPM3064ATC100-7 is RoHS non-compliant, making the substitute preferable for systems requiring regulatory compliance.

Q: What should I do if my design requires all 66 I/O pins?

A: If your design utilizes all 66 I/O pins on the original device, the ATF1504ASV-15AU100 cannot be used as a direct substitute. Consult alternative CPLD solutions with higher I/O pin counts or redesign your application to use fewer I/O pins.