LFECP10E-4FN484I Equivalent & Substitute Parts

Part Overview

The LFECP10E-4FN484I is an ECP Field Programmable Gate Array (FPGA) manufactured by Lattice Semiconductor Corporation, featuring 288 I/O pins and 10,200 logic elements in a 484-BBGA package. This device is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. The ECP series represents an earlier generation of Lattice FPGA technology; active alternatives within the same package footprint and electrical specifications are available to ensure design continuity.

Substiute Parts

LFECP10E-4FN484I

Lattice Semiconductor CorporationIn Stock: 1025LFECP10E-4FN484I Datasheet

Current PartRFQ

LFE2-12E-5FN484I

Lattice Semiconductor CorporationIn Stock: 1039LFE2-12E-5FN484I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFECP10E-4FN484I is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 484-BBGA package with identical 23x23mm footprint dimensions to ensure PCB-level compatibility without layout modifications.

Electrical Specifications: Supply voltage range (1.14V ~ 1.26V) and operating temperature range (-40°C ~ 100°C) must be maintained or exceeded to ensure functional equivalence in the target application.

I/O Pin Count: The substitute part must provide a minimum of 288 I/O pins to support existing pinout assignments. Increased I/O availability does not prevent substitution.

Logic Capacity: The substitute must provide logic element count equal to or greater than 10,200 to accommodate the original design's logic implementation.

Manufacturer Compliance: Both parts must maintain REACH Unaffected status and equivalent moisture sensitivity classification to ensure regulatory and environmental compliance.

The LFE2-12E-5FN484I meets all substitution criteria as an active-status alternative within the same package family and electrical envelope.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-12E-5FN484I is a qualified substitute for the LFECP10E-4FN484I based on the following engineering criteria:

Package and Pinout: Identical 484-BBGA package footprint (23x23mm) ensures direct PCB compatibility without layout redesign. The increased I/O count (297 vs. 288) provides additional available pins without creating conflicts with existing pinout assignments.

Electrical Envelope: Both parts operate within the same supply voltage range (1.14V ~ 1.26V) and temperature range (-40°C ~ 100°C), eliminating the need for power supply or thermal management modifications.

Logic Capacity: The LFE2-12E-5FN484I provides 12,000 logic elements compared to the original 10,200, offering increased design headroom for logic implementation.

Product Status and Compliance: The LFE2-12E-5FN484I maintains active product status with ROHS3 compliance and REACH Unaffected designation, ensuring long-term availability and regulatory alignment. Both parts share identical MSL classification (3, 168 Hours).

RAM Consideration: The substitute provides 226,304 RAM bits compared to the original 282,624 bits. Design validation is required to confirm that reduced on-chip RAM does not impact system functionality; external memory may be required if the original design relied on the full RAM capacity.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-12E-5FN484I be used as a direct replacement without PCB modifications?

A: Yes. Both parts use the 484-BBGA package with identical 23x23mm footprint dimensions. No PCB layout changes are required for mechanical and electrical compatibility.

Q: Are the supply voltage requirements identical?

A: Yes. Both the LFECP10E-4FN484I and LFE2-12E-5FN484I operate within the same supply voltage range of 1.14V ~ 1.26V. Existing power supply designs require no modification.

Q: What is the difference in I/O pin count, and does it affect compatibility?

A: The LFE2-12E-5FN484I provides 297 I/O pins compared to 288 on the original part. The additional 9 pins do not create compatibility issues; existing pinout assignments remain valid, and unused pins can be left unconnected.

Q: How do the logic element counts compare?

A: The LFE2-12E-5FN484I provides 12,000 logic elements versus 10,200 in the original part. This increase provides additional design capacity and does not prevent substitution.

Q: Is there a difference in on-chip RAM capacity?

A: Yes. The LFE2-12E-5FN484I provides 226,304 RAM bits compared to 282,624 bits in the LFECP10E-4FN484I. If the original design utilizes the full RAM capacity, external memory may be required to maintain equivalent functionality.

Q: What is the product status difference, and why does it matter?

A: The LFECP10E-4FN484I is obsolete, while the LFE2-12E-5FN484I is active. Active status ensures continued manufacturing, availability, and technical support from Lattice Semiconductor Corporation.

Q: Are both parts RoHS and REACH compliant?

A: The LFE2-12E-5FN484I is ROHS3 compliant. Both parts maintain REACH Unaffected status and identical MSL classification (3, 168 Hours), ensuring equivalent environmental and regulatory compliance.

Q: What is the operating temperature range for both parts?

A: Both parts operate across the identical temperature range of -40°C to 100°C (junction temperature), requiring no thermal management modifications.