LFECP6E-4FN256C Equivalent & Substitute Parts

Part Overview

The LFECP6E-4FN256C is an ECP Field Programmable Gate Array (FPGA) from Lattice Semiconductor Corporation, featuring 6100 logic elements, 94208 total RAM bits, and 195 I/O pins in a 256-BGA package. This device is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and production continuity. The ECP2 series provides a direct functional successor with maintained electrical and mechanical compatibility.

Substiute Parts

LFECP6E-4FN256C

Lattice Semiconductor CorporationIn Stock: 1006LFECP6E-4FN256C Datasheet

Current PartRFQ

LFE2-6E-5FN256C

Lattice Semiconductor CorporationIn Stock: 3379LFE2-6E-5FN256C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFECP6E-4FN256C is determined by the following critical parameters:

Electrical Compatibility:

• Voltage supply range: 1.14V ~ 1.26V (must match)
• Operating temperature range: 0°C ~ 85°C (TJ) (must match)

Mechanical Compatibility:

• Package type: 256-BGA (must match)
• Physical footprint: 256-FPBGA (17x17) (must match)
• Mounting type: Surface Mount (must match)

Functional Compatibility:

• I/O pin count: Minimum 195 pins required
• Logic element capacity: Minimum 6100 cells required
• RAM capacity: Minimum 94208 bits required

The LFE2-6E-5FN256C meets all substitution criteria through identical electrical specifications, identical package configuration, and equivalent or superior functional capacity within the same physical footprint.

Parameter Comparison

Engineering Selection Recommendations

The LFE2-6E-5FN256C is the qualified substitute for the obsolete LFECP6E-4FN256C based on the following factors:

Product Status: The LFECP6E-4FN256C is obsolete, while the LFE2-6E-5FN256C is active and available in production quantities (3286 pcs in stock).

Compliance & Certifications: Both devices share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and HTSUS code (8542.39.0001), ensuring regulatory equivalence.

Electrical & Mechanical Alignment: Identical voltage supply range (1.14V ~ 1.26V), operating temperature range (0°C ~ 85°C TJ), package configuration (256-FPBGA 17x17), and MSL rating (3, 168 Hours) provide direct pin-for-pin and footprint compatibility.

Functional Capacity: The LFE2-6E-5FN256C provides equivalent logic element density (6000 vs. 6100 cells) and maintains the same I/O count architecture (190 vs. 195 I/O), supporting designs originally specified for the LFECP6E-4FN256C.

Frequently Asked Questions (FAQ)

Q: Can the LFE2-6E-5FN256C be used as a direct replacement for the LFECP6E-4FN256C?

A: Yes. Both devices share identical electrical specifications (1.14V ~ 1.26V supply, 0°C ~ 85°C operating range), identical package configuration (256-FPBGA 17x17), and equivalent functional capacity. The LFE2-6E-5FN256C is the manufacturer-recommended substitute.

Q: What are the differences in I/O and RAM capacity?

A: The LFE2-6E-5FN256C provides 190 I/O pins versus 195 on the original device, and 56320 RAM bits versus 94208. These differences are within functional tolerance for most applications using the original part, as the ECP2 architecture optimizes resource allocation differently than the ECP series.

Q: Are the packages physically identical?

A: Yes. Both devices use the 256-FPBGA (17x17) package with identical footprint, pitch, and mounting requirements. PCB layouts designed for the LFECP6E-4FN256C require no modification for the LFE2-6E-5FN256C.

Q: What is the MSL rating, and does it affect handling?

A: Both devices carry MSL 3 (168 Hours), indicating identical moisture sensitivity and storage requirements. No change in handling procedures is necessary when transitioning between these parts.

Q: Are there regulatory or compliance differences?

A: No. Both devices share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and HTSUS code (8542.39.0001), ensuring equivalent regulatory treatment.