LFE3-70E-7FN484C Equivalent & Substitute Parts

Part Overview

The LFE3-70E-7FN484C is an ECP3 Field Programmable Gate Array (FPGA) from Lattice Semiconductor Corporation, featuring 67,000 logic elements, 295 I/O pins, and 4,526,080 total RAM bits in a 484-BBGA package. This part is currently marked as obsolete, making identification of compatible substitutes essential for ongoing system support and procurement planning. The primary substitute maintains identical electrical and mechanical specifications while offering improved availability and active product status.

Substiute Parts

LFE3-70E-7FN484C

Lattice Semiconductor CorporationIn Stock: 891LFE3-70E-7FN484C Datasheet

Current PartRFQ

LFE3-70EA-7FN484C

Lattice Semiconductor CorporationIn Stock: 33166LFE3-70EA-7FN484C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFE3-70E-7FN484C is based on strict equivalence across the following critical parameters:

• Logic Architecture: Identical ECP3 series platform with 67,000 logic elements
• I/O Configuration: 295 I/O pins maintained
• Memory Capacity: 4,526,080 RAM bits unchanged
• Electrical Specifications: Supply voltage range 1.14V ~ 1.26V identical
• Thermal Range: Operating temperature 0°C ~ 85°C (TJ) maintained
• Package Footprint: 484-BBGA (23x23) form factor identical
• Environmental Compliance: REACH Unaffected status consistent

The substitute part LFE3-70EA-7FN484C meets all these criteria, differing only in product status (active vs. obsolete) and packaging format (tray vs. unspecified).

Parameter Comparison

Engineering Selection Recommendations

The LFE3-70EA-7FN484C is the direct functional equivalent of the LFE3-70E-7FN484C. Selection between these parts should be based on the following factors:

For New Designs and Ongoing Production: The LFE3-70EA-7FN484C is the appropriate choice due to its active product status, ensuring long-term availability and manufacturer support. This part carries ROHS3 compliance certification, meeting current environmental standards.

For Legacy System Maintenance: The LFE3-70E-7FN484C remains functionally identical and may be retained if existing inventory is available. However, procurement of new units should transition to the LFE3-70EA-7FN484C variant.

Compliance Considerations: Both parts maintain REACH Unaffected status. The substitute part's ROHS3 compliance provides additional regulatory alignment for applications subject to environmental directives.

Frequently Asked Questions (FAQ)

Q: Are the LFE3-70E-7FN484C and LFE3-70EA-7FN484C pin-compatible?

A: Yes. Both parts use the 484-BBGA (23x23) package with identical pin assignments, voltage specifications, and I/O configuration. Direct PCB-level substitution is supported.

Q: What is the difference between these two part numbers?

A: The primary differences are product lifecycle status and packaging format. The LFE3-70E-7FN484C is obsolete, while the LFE3-70EA-7FN484C is active. The substitute includes ROHS3 compliance certification. Electrical and functional specifications are identical.

Q: Can I use the LFE3-70EA-7FN484C as a drop-in replacement?

A: Yes. The substitute part maintains identical logic element count, I/O configuration, RAM capacity, voltage supply range, operating temperature range, and package footprint. No design modifications are required.

Q: Are there any thermal or power consumption differences?

A: The provided specifications do not include thermal or power consumption data for either part. Both operate within the identical temperature range of 0°C ~ 85°C (TJ) and supply voltage of 1.14V ~ 1.26V.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts carry MSL 3 rating with a 168-hour floor life. Standard moisture control procedures during storage and handling apply to both variants.

Q: Should I prioritize the active part for new procurement?

A: Yes. The LFE3-70EA-7FN484C's active status ensures continued manufacturer support, documentation updates, and supply chain availability. This is the recommended choice for new designs and ongoing production.