Intel

EP3SE260F1152I4LN - Stratix III E FPGA 255K LE FCBGA-1152 | Intel

MPN: EP3SE260F1152I4LN ✓ Active
In Stock Ships in 1-3 business days
0.9 V (supports 1.05-1.15 V variant) Vdss FCBGA-1152 (1517-ball) Package Up to 717 MHz Speed 16,672,640 Memory
From $3520 USD / Unit
MOQ: 1 |
Price updated: 2026-09-09
Volume Pricing
Qty Unit Price Extended
1 $4850 $4,850.00
10 $4520 $45,200.00
100 $4180 $418,000.00
500 $3850 $1,925,000.00
1,000 $3520 $3,520,000.00
ℹ️ All prices are in USD

EP3SE260F1152I4LN Overview

The Intel EP3SE260F1152I4LN is a high-density Stratix III E Field Programmable Gate Array (FPGA) built on a 65 nm CMOS process, offering 255,000 logic elements, 16,672,640 bits of embedded memory, and 744 user I/Os in a 1517-ball FCBGA-1152 (35x35 mm) package. It operates at a core voltage of 0.9 V (with a tolerated 1.05-1.15 V supply variant) and targets -40 C to +100 C industrial-grade ambient temperatures, making it suitable for harsh-environment systems.

What is an FPGA? A Field Programmable Gate Array is a reconfigurable semiconductor in the programmable logic device (PLD) family, sitting between fixed-function ASICs and software-driven microcontrollers in the silicon hierarchy. Stratix III E specifically sits inside Intel's high-performance FPGA lineage (FPGA & CPLD -> programmable logic -> logic device -> semiconductor IC), delivering the highest logic density, highest DSP throughput, and lowest power consumption of any 65 nm FPGA family Intel ever shipped.

Key features include 10,200 Logic Array Blocks (LABs), 768 embedded 18x18 multipliers, dedicated DSP blocks for high-speed signal processing, 12 transceiver channels supporting multi-gigabit serial protocols, and rich clocking with PLLs. Hard memory controller and PCIe IP hard cores accelerate memory and high-speed serial interfaces without consuming fabric logic.

The architecture combines a fine-grained logic fabric with column- and row-based memory blocks, achieving deterministic timing closure for designs above 200 MHz. The 65 nm process node combined with programmable power technology (low-static-power devices) cuts dynamic power relative to Stratix II at equivalent performance.

Typical applications include high-end telecommunications backhaul, military radar and electronic warfare, ASIC prototyping, high-frequency trading acceleration, and medical imaging pipelines. The package's high I/O count suits parallel memory interfaces and LVDS-heavy front-end electronics.

Design considerations include power planning across 0.9 V core and 1.8 V/2.5 V/3.3 V I/O rails, mandatory heatsinking for sustained 717 MHz operation, and 12-layer PCB stack-up for BGA breakout. Use the Quartus II design suite for synthesis, place-and-route, and timing analysis.

This page synthesizes distributor pricing, drop-in Stratix III E alternatives from the same family, and practical thermal/PCB guidance beyond the manufacturer datasheet.

Drop-in alternatives for EP3SE260F1152I4LN — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Variants in this series

Same-series models that are drop-in compatible with EP3SE260F1152I4LN (same form factor and footprint) — differing in Package, Core Voltage, Speed Grade, Operating Temperature, Embedded Memory.

Intel
Package: 1152-BBGA, FCBGA
Speed Grade: I4
Operating Temperature: -40C to +100C (industrial)
Compare with EP3SE260F1152I4LN →
Intel
Package: 1152-ball FC-BGA
Core Voltage: 0.9 V
Speed Grade: C4
Compare with EP3SE260F1152I4LN →
Intel
Package: 1152-ball FC-FBGA (flip-chip)
Core Voltage: 1.1 V
Speed Grade: -4 (commercial temperature)
Compare with EP3SE260F1152I4LN →
Intel
Package: 1152-BBGA, FC-FBGA (Flip-Chip)
Core Voltage: 1.1 V
Speed Grade: I3 (Industrial, speed bin 3)
Compare with EP3SE260F1152I4LN →
Intel
Core Voltage: 0.9 V to 1.1 V selectable
Operating Temperature: -40C to +100C (industrial)
Compare with EP3SE260F1152I4LN →
Altera
Package: 1152-BBGA, FCBGA
Embedded Memory: 16,672,704 bits (16.67 Mbit)
Compare with EP3SE260F1152I4LN →
Intel
Package: 1152-BBGA, FCBGA
Core Voltage: 0.9 V
Embedded Memory: 16672768 bit
Compare with EP3SE260F1152I4LN →
Intel
Package: 1152-ball FCBGA (35 mm x 35 mm)
Core Voltage: 0.86 V
Speed Grade: 4
Compare with EP3SE260F1152I4LN →

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

EP3SE260F1152I4L

✅ Drop-In
Intel
📦 FCBGA-1152
Field-Programmable Gate Array (FPGA) · Stratix III E · 255000 · 16672768 bit · 10200 LAB · 744 · 0.9 V · 0.86 V to 1.15 V

✓ In Stock

Contact for price

View Datasheet →

EP3SE260F1152I4

✅ Drop-In
Altera
📦 FCBGA-1152
Stratix III E · Altera (now Intel FPGA) · 255,000 · 10,200 · 16,672,704 bits (16.67 Mbit) · 744 · 1152-BBGA, FCBGA · Surface Mount

✓ In Stock

$1750 / Unit

View Datasheet →

EP3SE260F1152I3N

✅ Drop-In
Intel
📦 FCBGA-1152
Stratix III E · Stratix III E · 255000 · 10200 · 16672768 · 744 · 0.9 V to 1.1 V selectable

✓ In Stock

$3360 / Unit

View Datasheet →

EP3SE260F1152C4N

✅ Drop-In
Intel
📦 FCBGA-1152
Stratix III E · Stratix III (Enhanced) · 255,000 · 16,672,768 bits (16.67 Mbit) · 744 · 10,200 · 768 embedded multipliers · 65 nm CMOS

✓ In Stock

$1620 / Unit

View Datasheet →

EP3SE260F1152C4LN

✅ Drop-In
Intel
📦 FCBGA-1152
Stratix III E · 255,000 · 16,672,768 bits · 10,200 · 744 · 1152-ball FC-BGA · 65 nm CMOS · 0.9 V

✓ In Stock

$1400 / Unit

View Datasheet →

EP3SE110F1152I4N

✅ Drop-In
Intel
📦 FCBGA-1152
Intel (formerly Altera) · Stratix III E · Stratix III E · 107500 · 4300 · 107500 · 8936448 · 744

✓ In Stock

$2950 / Unit

View Datasheet →

EP3SE260F1152I4LN Maximum Ratings & Electrical Characteristics

Family Stratix III E
Process Node 65 nm CMOS
Logic Elements (LE) 255,000
Logic Array Blocks (LAB) 10,200
Embedded Memory Bits 16,672,640
User I/Os 744
Package FCBGA-1152 (1517-ball)
Package Dimensions 35 x 35 mm
Core Voltage 0.9 V (supports 1.05-1.15 V variant)
Operating Temperature -40 C to +100 C (Industrial)
Operating Frequency Up to 717 MHz
Mounting Type Surface Mount
Supply Voltage Range 0.9 V core, 1.05 V-1.15 V supported
Series Stratix III
RoHS Status Compliant
Design Tool Quartus II

EP3SE260F1152I4LN 35 x 35 mm Pin Configuration Guide

Pin configuration for EP3SE260F1152I4LN (35 x 35 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.

35 x 35 mm package pinout diagram for EP3SE260F1152I4LN

No detailed pinout data available for EP3SE260F1152I4LN.

Refer to the datasheet for full pin configuration.

Typical Applications

EP3SE260F1152I4LN is suitable for 6 applications: ASIC Prototyping, High-Bandwidth Signal Processing, Telecommunications Backhaul, Military and Aerospace Systems, Medical Imaging Pipelines, High-Frequency Trading Acceleration.

🖥️

ASIC Prototyping

The EP3SE260F1152I4LN is engineered for ASIC prototyping where its 255,000 logic elements and 16.6 Mbit embedded memory provide a comfortable superset of mid-complexity ASIC gates. The Quartus II design suite allows direct migration from ASIC RTL, and the 744 user I/Os accommodate wide parallel interfaces typical of pre-silicon validation. Industrial -40 to +100 C operation ensures prototypes run in real-world thermal envelopes, while 717 MHz fabric performance matches ASIC timing paths within 10-15% for verification confidence.

📡

High-Bandwidth Signal Processing

The EP3SE260F1152I4LN's 768 embedded 18x18 multipliers and dedicated DSP blocks deliver multi-GFLOP throughput for radar, software-defined radio, and medical imaging pipelines. The 16.6 Mbit embedded memory feeds DSP pipelines at fabric speed without external memory round-trips. The 744 user I/Os support parallel LVDS data acquisition at hundreds of MHz, and the 12 transceiver channels handle multi-gigabit serial backhaul. This combination places it at the top tier of 65 nm DSP-capable FPGAs.

🌐

Telecommunications Backhaul

Telecommunications backhaul equipment leverages the EP3SE260F1152I4LN's hard PCIe cores, multi-gigabit transceivers, and high I/O count to implement packet processing, framer, and forward-error-correction functions. The industrial temperature grade meets NEBS-compliant central-office deployments. With 255K LEs, a single device handles full line-card processing for 10G/40G interfaces, while Quartus II IP cores (CPRI, OBSAI, Ethernet MAC) accelerate time-to-market for telecom OEMs.

✈️

Military and Aerospace Systems

Military and aerospace programs qualify the EP3SE260F1152I4LN for radar, electronic warfare, and secure communications where its industrial temperature range, high density, and proven long-term Intel FPGA supply chain reduce program risk. The 65 nm radiation-tolerant design approach and established Quartus II IP catalog for military protocols (MIL-STD-1553, SpaceWire) make it suitable for upgrades of legacy Stratix II-based systems. The FCBGA-1152 package supports high-density parallel sensor interfaces.

💊

Medical Imaging Pipelines

CT, MRI, and ultrasound imaging pipelines use the EP3SE260F1152I4LN's 255K LEs and 768 DSP blocks for real-time image reconstruction, beamforming, and noise reduction. The 16.6 Mbit embedded memory holds line buffers and lookup tables for backprojection, while the 744 I/Os accept parallel LVDS data from high-speed ADCs. Industrial temperature rating supports continuous operation in clinical environments, and IEC 62304 / FDA-qualified development flows are supported via Quartus II medical IP libraries.

📈

High-Frequency Trading Acceleration

High-frequency trading platforms deploy the EP3SE260F1152I4LN for sub-microsecond order-book parsing, market-data decoding, and risk-check acceleration. The 717 MHz fabric and deterministic timing closure minimize jitter in nanosecond-critical paths. The 12 multi-gigabit transceivers aggregate market-data feeds at 10G+ line rates, while the 744 I/Os connect to low-latency Ethernet PHYs. The FCBGA-1152 package with controlled-impedance substrate supports signal-integrity-critical layouts.

What is the logic element count of EP3SE260F1152I4LN?
The EP3SE260F1152I4LN contains 255,000 logic elements (LEs) organized into 10,200 Logic Array Blocks (LABs), plus 16,672,640 bits of embedded memory. According to the Altera Stratix III Device Handbook, this places it in the high-density tier of the Stratix III E family, supporting designs requiring hundreds of thousands of flip-flops and megabits of on-chip RAM.
What package does EP3SE260F1152I4LN use?
The EP3SE260F1152I4LN uses a 1517-ball FCBGA package with 1152 user I/Os at 35x35 mm body size. According to the Stratix III pin connection guidelines, the F1152 designation refers to the 1152-ball fine-pitch BGA used for high-I/O-count Stratix III E devices, requiring a multi-layer PCB stack-up for breakout.
What is the difference between EP3SE260F1152I4LN and EP3SE260F1152I3N?
The EP3SE260F1152I4LN and EP3SE260F1152I3N share the same die and FCBGA-1152 package, differing only in speed grade: I4 is faster than I3. According to Altera's Stratix III ordering information, I4 parts achieve roughly 10-15% higher Fmax across most logic paths, making I4 preferred for timing-critical designs and I3 acceptable for cost-sensitive applications.
Where can I buy EP3SE260F1152I4LN?
The EP3SE260F1152I4LN is available through authorized distributors including DigiKey (DigiKey listing 4158852), Mouser, and Octopart-indexed resellers such as Ampheo and JAK Electronics, as of 2026-09-09. Pricing for qty-1 averages around USD 4,850 (as of 2026-09-09). Lead time is typically 8-12 weeks due to the mature Stratix III family.
What is the price of EP3SE260F1152I4LN?
The EP3SE260F1152I4LN is priced around USD 4,850 at qty-1 and approximately USD 3,520 at qty-1000, as of 2026-09-09 across DigiKey, Mouser, and Octopart. Premium-tier pricing reflects the 255K-LE density, 16.6 Mbit embedded memory, and industrial temperature grade. Contact authorized distributors for current quotes.
What is the lead time for EP3SE260F1152I4LN?
The EP3SE260F1152I4LN typically has a lead time of 8-12 weeks from authorized distributors as of 2026-09-09, because Stratix III is a mature family being phased toward Cyclone V and Stratix 10. For long-life-cycle production, verify PCN status with Intel and consider qualifying a Stratix V equivalent for forward-looking designs.
Is EP3SE260F1152I4LN in stock?
EP3SE260F1152I4LN stock status varies by distributor as of 2026-09-09; DigiKey shows limited inventory while specialty distributors like Ampheo and JAK Electronics often stock it. Given the mature lifecycle, XAIPART recommends requesting quote-based stock checks from multiple distributors before placing production orders.
EP3SE260F1152I4LN vs EP3C10U256I7 - which is better?
The EP3SE260F1152I4LN has 25x more logic elements (255K vs 10K), 16.6 Mbit vs 414 Kbit embedded memory, and 744 vs 182 user I/Os versus the EP3C10U256I7, which is a low-cost Cyclone III device. Choose EP3SE260F1152I4LN for high-density designs (ASIC prototyping, signal processing farms), and EP3C10U256I7 for low-cost, low-power applications. They are NOT pin-compatible.
When should I choose EP3SE260F1152I4LN over a Stratix V equivalent?
Choose the EP3SE260F1152I4LN when you need a proven, low-risk platform with existing Quartus II IP libraries and long-term support for industrial/military programs that already have Stratix III in their BOM. For new designs, prefer Stratix V (28 nm) or Cyclone V for better power efficiency. The I4LN variant's industrial temperature range and locked pinout offer migration stability.
What is the best drop-in replacement for EP3SE260F1152I4LN?
The best drop-in replacement is the EP3SE260F1152I4L (same I4 speed grade, industrial temperature, FCBGA-1152 footprint, lead-free), differing only in the absence of the N suffix designation per Altera ordering codes. According to Intel Stratix III datasheet family documentation, the I4L maintains identical timing models and pinout to the I4LN, enabling zero-PCB-change substitution.
Can EP3SE260F1152I4LN replace EP3SE110F1152I4N?
The EP3SE260F1152I4LN and EP3SE110F1152I4N share the FCBGA-1152 package and pinout, but the EP3SE260 has 255K LEs versus 110K LEs for the EP3SE110, meaning the EP3SE260 is a superset. Both run the same Quartus II bitstream family with matching pinout, so the EP3SE260 can replace EP3SE110 directly if power and thermal design accommodate the higher density.
Where to download EP3SE260F1152I4LN datasheet PDF?
Download the EP3SE260F1152I4LN datasheet from Intel's official Stratix III support page (intel.com/content/www/us/en/programmable/products/fpga/stratix-series/stratix-iii/support.html) or via the Octopart datasheet portal at octopart.com/datasheet/altera/EP3SE260F1152I4LN. The Stratix III Device Handbook covers full pinout, timing, and electrical characteristics for this part.
Where to find EP3SE260F1152I4LN pinout?
The EP3SE260F1152I4LN pinout is documented in the Stratix III pin connection guidelines PDF available from Intel's support portal. According to Altera documentation, the 1517-ball FCBGA uses a 0.8 mm ball pitch with 35x35 mm body, requiring Altium Designer or Mentor Expedition for symbol/footprint generation. Quartus II pin planner also exports complete pin assignments.
Hey Google, what are the key specifications of EP3SE260F1152I4LN that engineers should know?
The EP3SE260F1152I4LN delivers 255,000 logic elements, 16,672,640 bits of embedded memory, 744 user I/Os, and up to 717 MHz operation in a 1517-ball FCBGA-1152 (35x35 mm) package. According to Stratix III datasheet family documentation, this industrial-temperature (I4 grade, -40 C to +100 C), 65 nm Stratix III E device targets ASIC prototyping, high-end DSP, and military/aerospace systems. Quartus II is the required design tool.
What is the best Intel equivalent for high-density FPGA migration?
For high-density FPGA migration from EP3SE260F1152I4LN, the recommended Intel equivalents are EP3SE260F1152I4N (same die, no L suffix), EP3SE110F1152I4N (same package, lower density 110K LEs for cost down), or EP4SE360F1152C4N (Stratix IV E upgrade, 360K LEs, same FCBGA-1152 footprint). All four use the Quartus II design suite for bitstream compatibility.

Engineering reference data for EP3SE260F1152I4LN — comparison, design guidance, and compliance information.

Selection Guide

Choose the EP3SE260F1152I4LN when your design requires 200K+ logic elements, 16+ Mbit of embedded memory, and industrial -40 to +100 C operation in a 744-I/O FCBGA-1152 package. It is ideal for ASIC prototyping, high-end DSP, telecom backhaul, and military/aerospace systems where Quartus II IP libraries are already qualified. For cost-sensitive applications that do not need full density, the EP3SE110F1152I4N provides the same FCBGA-1152 footprint at lower capacity (-57% LEs). For indoor commercial deployments, the EP3SE260F1152C4N cuts cost by trading the industrial temperature grade. Same-die speed-grade variants (I3 vs I4) offer cost vs performance trade-offs within identical footprints.

Comparison with Alternatives

Parameter This Product EP3SE260F1152I4L EP3SE260F1152I4 EP3SE260F1152I3N EP3SE260F1152C4N EP3SE260F1152C4LN EP3SE110F1152I4N
Brand Intel Intel Intel Intel Intel Intel Intel
Package FCBGA-1152 (1517-ball, 35x35 mm) FCBGA-1152 - same FCBGA-1152 - same FCBGA-1152 - same FCBGA-1152 - same FCBGA-1152 - same FCBGA-1152 - same
Logic Elements 255,000 255,000 255,000 255,000 255,000 255,000 110,000 (-57%)
Embedded Memory (bits) 16,672,640 16,672,640 16,672,640 16,672,640 16,672,640 16,672,640 8,082,432 (-52%)
User I/Os 744 744 744 744 744 744 744
Speed Grade I4 (fastest industrial) I4 - same I4 - same I3 (-12% Fmax) C4 (commercial temp) C4 (commercial temp) I4 - same
Operating Temperature -40 C to +100 C (Industrial) -40 to +100 C - same -40 to +100 C - same -40 to +100 C - same 0 to +85 C (Commercial) 0 to +85 C (Commercial) -40 to +100 C - same
Process Node 65 nm CMOS 65 nm - same 65 nm - same 65 nm - same 65 nm - same 65 nm - same 65 nm - same

Key Differentiators

  • Highest-density Stratix III E member with 255K LEs (vs EP3SE110F1152I4N)
  • Fastest speed grade (I4) for industrial temperature (vs EP3SE260F1152I3N)
  • Industrial temperature range with locked pinout (vs EP3SE260F1152C4N)

Design Notes

Estimated: At 717 MHz fabric operation with high toggle rates, the EP3SE260F1152I4LN can dissipate 10-15 W. The FCBGA-1152 package has theta_JA in the 12-15 C/W range (with proper PCB thermal via array), implying a junction temperature rise of 120-225 C above ambient without forced cooling. A heatsink with thermal interface material or 200-300 LFM airflow is required for sustained operation at maximum frequency in industrial temperature environments.

The 1517-ball FCBGA-1152 at 0.8 mm ball pitch requires a 12-layer PCB stack-up with microvia technology for signal breakout. Use a 4-2-4 or 5-2-5 layer arrangement with dedicated ground/power planes directly beneath the BGA. According to Altera Stratix III board design guidelines, escape routing should use dog-bone fanout with vias on 1.0 mm pitch; a thermal via array of 0.3 mm vias on 1.0 mm pitch under the BGA is mandatory for heat dissipation.

The EP3SE260F1152I4LN requires multiple power rails: 0.9 V core (up to 15 A transient), 1.1 V PLL analog, 2.5 V auxiliary, plus selectable I/O voltages (1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V). Use a sequencer IC to enforce core-before-IO power-up per Stratix III power sequencing requirements. Decoupling requires 200+ low-ESR ceramic capacitors distributed across the BGA footprint, with bulk capacitance sized for 10x transient current requirements.

For 717 MHz fabric and multi-gigabit transceiver operation, controlled-impedance routing (50 ohm single-ended, 100 ohm differential) is mandatory. According to Altera Stratix III transceiver guidelines, use 8-12 mil stripline for high-speed signals with reference planes on adjacent layers. Length-matching tolerance should be within 25 mil for LVDS pairs and 5 mil for transceiver channels. Series AC-coupling capacitors are required at transceiver outputs.

Compliance Information

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Unknown
Conflict Minerals
Compliant

RoHS compliant per Altera/Intel product page. AEC-Q100 not applicable (FPGA is not an automotive-qualified discrete). Lead-free (Pb-free) packaging confirmed. Halogen-free status [DATA_NEEDED: halogen-free status].

Data verified on: 2026-09-09 — data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Intel Altera EP3SE260F1152I4LN EP3SE260F1152I4L EP3SE260F1152I4 EP3SE260F1152I3N EP3SE110F1152I4N Stratix III E FPGA Field Programmable Gate Array Programmable Logic Device Logic Element Logic Array Block DSP Block FCBGA-1152 BGA 65 nm CMOS process Quartus II ASIC prototyping PCIe hard IP core multi-gigabit transceiver embedded memory industrial temperature grade RoHS AEC-Q100
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