Intel

EP1S25F1020I6N - Stratix 25,660-Cell FPGA 1020-BGA | Intel / Altera

MPN: EP1S25F1020I6N ✗ End of Life
In Stock Ships in 1-3 business days
1.5 V Vdss 1020-ball FC-FBGA (33 × 33 mm, 1 mm pitch) Package 1,944,576 bits Memory
From $1028.03 USD / Unit
MOQ: 1 |
Price updated: 2026-09-06
Volume Pricing
Qty Unit Price Extended
1 $1713.38 $1,713.38
10 $1542.04 $15,420.40
100 $1370.7 $137,070.00
500 $1199.36 $599,680.00
1,000 $1028.03 $1,028,030.00
ℹ️ All prices are in USD

Drop-in alternatives for EP1S25F1020I6N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

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

EP1S25F1020I6

✅ Drop-In
Altera
📦 FC-FBGA-1020 (33×33 mm, 1 mm pitch)
Stratix · Stratix I · 25,660 · 2,566 · 1,944,576 bits (≈ 1.85 Mbits) · 706 · 450 MHz (per datasheet reference) · 130 nm CMOS

✓ In Stock

$1530 / Unit

View Datasheet →

EP1S25F1020C7N

✅ Drop-In
📦 FC-FBGA-1020 (33×33 mm, 1 mm pitch)
Same silicon, commercial temperature (0 to 70 °C) vs. industrial (0 to 85 °C); C7 speed grade vs. I6

📋 Reference alternative (not in catalog)

EP1S25F1020C6N

✅ Drop-In
Altera
📦 FC-FBGA-1020 (33×33 mm, 1 mm pitch)
Stratix · 25,660 · 25,660 · 1,944,576 · 706 · 2,566 · 130 nm CMOS · 1.5 V

✓ In Stock

$450 / Unit

View Datasheet →

EP1S25F1020C6

✅ Drop-In
Intel
📦 FC-FBGA-1020 (33×33 mm, 1 mm pitch)
Stratix · 25,660 · 2,566 · 1,944,576 · 706 · TriMatrix (M512 + M4K + M-RAM) · Yes (hardware multipliers) · 6

✓ In Stock

$425 / Unit

View Datasheet →

EP1S25F1020C5N

✅ Drop-In
Intel
📦 FC-FBGA-1020 (33×33 mm, 1 mm pitch)
Stratix · 25660 · 2852 · 130 nm CMOS · 1.5 V · 500 MHz · 706 · 1020-ball FC-FBGA

✓ In Stock

$640 / Unit

View Datasheet →
ℹ️ 1 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

EP1S25F1020I6N Maximum Ratings & Electrical Characteristics

Family Stratix
Logic Cells 25,660
Logic Array Blocks (LABs) 2,566
Embedded Memory 1,944,576 bits
User I/Os 706
Maximum User I/O Pins 706
Core Voltage 1.5 V
Technology Node 130 nm CMOS
Package 1020-ball FC-FBGA (33 × 33 mm, 1 mm pitch)
Pin Count 1020
Operating Temperature 0 °C to +85 °C (industrial, I6)
Mounting Type Surface Mount (BGA)
Device Family Stratix FPGA
Logic Family CMOS
Lead-Free / RoHS RoHS compliant per Altera / Intel product page

EP1S25F1020I6N 1020-ball fc-fbga (33 × 33 mm, 1 mm pitch) Pin Configuration Guide

Complete pinout information for EP1S25F1020I6N (1020-ball fc-fbga (33 × 33 mm, 1 mm pitch) package) with 1020 pins. 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.

1020-ball fc-fbga (33 × 33 mm, 1 mm pitch) package pinout diagram for EP1S25F1020I6N

No detailed pinout data available for EP1S25F1020I6N.

Refer to the datasheet for full pin configuration.

Estimated pin count: 1020 pins (digital package)

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for EP1S25F1020I6N Drain-to-Source Voltage (Vds) Drain Current (Id)

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

EP1S25F1020I6N is suitable for 6 applications: Wireline Communications Line Cards, Video Broadcast and Image Processing, High-Performance ASIC Prototyping, Test and Measurement Instrumentation, Military / Aerospace Signal Processing, Industrial Control and High-Speed Industrial Networking.

🌐

Wireline Communications Line Cards

The EP1S25F1020I6N's 25,660 logic cells, 1.94 Mbit of embedded TriMatrix memory, and 706 user I/Os make it well suited to early-2000s wireline line-card designs such as SONET/SDH framers, multi-gigabit Ethernet MACs, and ATM/PoS switching fabrics. The 1020-ball FC-FBGA exposes the wide parallel data buses and multiple high-speed clock domains these systems require, while the Stratix DSP blocks accelerate packet-header parsing and forward-error-correction datapaths. Industrial (I6) temperature screening ensures operation in central-office environments where ambient temperatures regularly exceed 40 °C. Compared with a CPLD, the EP1S25 provides the density needed for multi-channel framer designs; compared with an ASIC, it allows last-minute protocol revisions across SONET, Ethernet, and OTN.

📺

Video Broadcast and Image Processing

Broadcast video designs in the Stratix era required hundreds of thousands of logic cells to handle uncompressed SDI / HD-SDI / 3G-SDI streams at 270 Mb/s, 1.485 Gb/s, and 2.97 Gb/s data rates. The EP1S25F1020I6N integrates 1.94 Mbit of on-chip memory for line buffering, plus DSP blocks that accelerate chroma-keying, color-space conversion (RGB ↔ YCbCr), and deinterlacing pipelines. The 706 user I/Os comfortably host multiple 10-bit / 20-bit parallel video buses alongside the LVDS / LVPECL serializers used by SDI. The 130 nm CMOS node delivers deterministic timing across the wide bus widths that broadcast systems require, and the FC-FBGA-1020 footprint supports the controlled-impedance routing essential to multi-gigabit SDI links.

🖥️

High-Performance ASIC Prototyping

FPGA-based ASIC prototyping relies on the highest-density devices available, and the EP1S25F1020I6N with 25,660 logic cells was a workhorse platform for prototyping ASICs of roughly 100k–200k gate-equivalents in the early-to-mid 2000s. Its 1.94 Mbit of TriMatrix memory accurately models the SRAM blocks in the target ASIC, and 706 user I/Os expose enough board-level pins to map complex SoC peripherals. Multiple EP1S25F1020I6N devices can be tiled on a multi-FPGA prototyping board using LVDS-based chip-to-chip links. The industrial temperature grade (-6 / I6) and the well-characterized Stratix timing models in Quartus make this part particularly attractive for replicating worst-case industrial ASIC behavior.

🔧

Test and Measurement Instrumentation

Test and measurement equipment of the Stratix era — digital storage oscilloscopes, logic analyzers, protocol analyzers, and arbitrary waveform generators — depends on wide acquisition memory, deterministic sampling, and multi-channel parallel DSP. The EP1S25F1020I6N's 1.94 Mbit of embedded memory can buffer acquisition windows at full sample rate, and its DSP blocks run FIR / FFT / DFT cores that compute frequency-domain and time-domain analysis in real time. The 706 user I/Os accept the wide parallel LVDS buses from front-end ADCs and connect to the high-throughput DDR memory controller pins at the back end. The industrial temperature grade (0 to 85 °C) suits laboratory and bench environments, while the FC-FBGA-1020 footprint supports the controlled-impedance routing required at the gigabit sample rates of that generation.

✈️

Military / Aerospace Signal Processing

Defense and aerospace programs in the Stratix era used the EP1S25F1020I6N for radar signal processing, electronic-countermeasure (ECM) waveform generation, and software-defined radio (SDR) baseband. The industrial temperature grade and the deterministic 130 nm CMOS timing closure made the part attractive for line-replaceable modules (LRMs) and ruggedized subsystems. The 706 user I/Os simultaneously drive LVDS data converters (ADCs / DACs) and high-speed optical links, while the embedded TriMatrix memory holds radar-range and Doppler-history buffers. Although a Mil/Aero temperature screening (the EP1S25F1020I7N family) is required for full military qualification, the EP1S25F1020I6N is widely used in defense subsystems that only need industrial screening.

🏭

Industrial Control and High-Speed Industrial Networking

High-end industrial-control systems — programmable logic controllers (PLCs), motion controllers, and high-speed industrial networking gateways — use FPGAs to bridge multiple real-time Ethernet protocols (EtherCAT, PROFINET, EtherNet/IP) and to handle parallel deterministic I/O. The EP1S25F1020I6N's 25,660 logic cells and 706 user I/Os let one device terminate multiple industrial Ethernet ports while still servicing digital I/O subsystems, encoder counters, and PWM channels for motor control. Industrial temperature screening (0 to 85 °C) covers factory-floor conditions. The 1.5 V core and well-documented Stratix power-supply design simplify the multi-rail power architecture these systems require.

What is the EP1S25F1020I6N and what family does it belong to?
The EP1S25F1020I6N is a 25,660-logic-cell Stratix FPGA from Intel (formerly Altera) housed in a 1020-ball FC-FBGA. According to the Stratix Device Family Data Sheet, the part uses 130 nm CMOS technology, integrates 1,944,576 bits of TriMatrix memory, exposes 706 user I/Os, and operates from a 1.5 V core supply. It belongs to the original Altera Stratix family, the first generation of the company's high-end FPGAs.
What is the package and pin count of the EP1S25F1020I6N?
The EP1S25F1020I6N ships in a 1020-ball Fine-pitch Chip-Scale BGA (FC-FBGA / FCBGA-1020) measuring 33 × 33 mm with a 1.00 mm ball pitch. This package is shared across the highest-density Stratix devices and is the largest package in the family; it requires multilayer PCB design with controlled-impedance routing and microvia or via-in-pad technology.
What is the operating temperature of the EP1S25F1020I6N?
The 'I6' suffix in EP1S25F1020I6N designates the industrial operating temperature range of 0 °C to +85 °C. Per the Stratix datasheet ordering information, the part is screened to industrial limits and is not qualified to the automotive AEC-Q100 standard; for military / aerospace temperature ranges, a different ordering code would be required.
How much embedded memory does the EP1S25F1020I6N have?
The EP1S25F1020I6N contains 1,944,576 bits (≈1.94 Mbit) of embedded TriMatrix memory distributed as RAM blocks across the device fabric. TriMatrix memory includes three block sizes optimized for different applications, allowing designers to trade off block count vs. depth per block. This embedded memory is in addition to any external SDRAM / SRAM / QDR connected to the user I/Os.
What core voltage does the EP1S25F1020I6N require?
The EP1S25F1020I6N operates from a 1.5 V core supply. The device also requires separate VCCIO bank supplies (typically 1.5 V, 1.8 V, 2.5 V, or 3.3 V depending on the I/O standard) and an auxiliary VCCA / VCCPD supply for configuration and JTAG. Power sequencing must follow the Stratix handbook guidelines to avoid long-term reliability issues.
Where can I buy the EP1S25F1020I6N and what is the price as of 2026-09-07?
As of 2026-09-07, the EP1S25F1020I6N is listed by Heisener.com at approximately USD 1,713.38 for 1-piece pricing. Because the part is obsolete, authorized-distributor stock is limited; independent distributors and brokers commonly list the part at premiums over original list price. For current stock and lead time, search Octopart and DigiKey's parametric cross-reference tool.
Is the EP1S25F1020I6N in stock or obsolete?
The EP1S25F1020I6N is officially obsolete per GlobalSpec and most distributor listings; Altera (now Intel) discontinued the original Stratix family as successive generations (Stratix II, III, IV, V) replaced it. Heisener.com reports a small amount of stock in 2026 (≈15,948 pieces) sourced from independent distribution channels. Lead times vary, but most authorized channels no longer carry the part.
What is the lead time for the EP1S25F1020I6N?
Lead time for the EP1S25F1020I6N is generally 'Can Ship Immediately' from independent distributors such as Heisener, with quoted delivery of Feb 8 – Feb 13 in one 2026 listing. Authorized-stock lead time is essentially N/A because the part is obsolete. Always verify current lead time against the chosen distributor before committing to a production schedule.
What is the difference between EP1S25F1020I6N and EP1S25F1020C6N?
The EP1S25F1020I6N is the industrial-temperature (0 °C to +85 °C) variant, while the EP1S25F1020C6N is the commercial-temperature (0 °C to +70 °C) variant of the same EP1S25F1020 device. Both parts share the FC-FBGA-1020 package and identical silicon; the I6 vs. C6 difference is in factory test and screening only, making them drop-in compatible for non-extreme environments.
Can the EP1S25F1020I6N be replaced with an EP1S25F1020I6 (without the N suffix)?
The 'N' suffix on Intel / Altera ordering codes typically denotes lead-free / Pb-free packaging per JEDEC J-STD-020. Both EP1S25F1020I6N and EP1S25F1020I6 share the same silicon and the same FC-FBGA-1020 footprint and are pin-to-pin compatible; the only practical difference is the bump / lead finish and reflow profile. Choose EP1S25F1020I6N for new RoHS-compliant designs.
What is the best drop-in replacement for the EP1S25F1020I6N?
The closest drop-in replacement is EP1S25F1020I6 (the same die without the Pb-free N suffix) or EP1S25F1020C6N (commercial temperature, same silicon). For new designs, consider migrating to a Stratix II EP2S25F1020 variant, which is pin-compatible in the FC-FBGA-1020 footprint but moves to a 90 nm node and offers higher logic density per I/O.
Is there a cross-brand (Xilinx / Lattice) equivalent for the EP1S25F1020I6N?
There is no direct cross-brand pin-compatible equivalent for the EP1S25F1020I6N. Xilinx's contemporary Virtex-II Pro family (XC2VP40 / XC2VP50) and Lattice's ECP family target similar logic density but use different packages and ballouts, so a PCB redesign is required. For new designs where PCB layout can change, Stratix II (Intel) and Virtex-II Pro (Xilinx) are the common cross-vendor alternatives.
Where can I download the EP1S25F1020I6N datasheet PDF?
The official Altera / Intel datasheet for the EP1S25 family is mirrored at https://datasheet.iiic.cc/2f66ece7/altera.com/EP1S25F1020I6N.pdf. Additional specifications and pinout information are available via the FindIC and DigiChip datasheet mirrors listed in the data sources on this page. For the full Stratix Device Handbook, request access from Intel FPGA documentation after registering a myAltera account.
Where do I find the EP1S25F1020I6N pinout (BGA ball map)?
The complete 1020-ball FC-FBGA pin map for the EP1S25F1020I6N is published in the Stratix Device Family Data Sheet under the 'Pin Information' section. The package is 33 × 33 mm with 1.00 mm pitch, arranged in a 32 × 32 ball grid (1020 signal balls with peripheral mechanical / thermal balls). Always cross-check against the Altera Quartus pinout file for your specific device variant before PCB layout.
Is the EP1S25F1020I6N suitable for new designs in 2026?
The EP1S25F1020I6N is not recommended for new designs in 2026. The part is obsolete, no longer manufactured, and uses a 130 nm process that delivers lower logic density per Watt than current Stratix V / Stratix 10 families. For new designs, choose a current-generation Intel FPGA (Stratix 10, Agilex 7, or Cyclone 10) or, if the application is mature and the supply is guaranteed, use the EP1S25F1020I6N with a long-term supply agreement and a verified second source.

Engineering reference data for EP1S25F1020I6N — comparison, design guidance, and compliance information.

Selection Guide

Choose EP1S25F1020I6N when you need a 25,660-logic-cell Stratix FPGA in the largest FC-FBGA-1020 package (706 user I/Os), the industrial 0–85 °C operating range, and a Pb-free / RoHS-compliant finish, all at the -6 speed grade. This is the original-Altera Stratix workhorse and is pin-compatible across the FC-FBGA-1020 footprint with the -C7, -C6, -C5 commercial variants and the non-Pb-free EP1S25F1020I6. Choose EP1S25F1020I6 for legacy / non-RoHS designs, EP1S25F1020C6N when only 0–70 °C is needed, and EP1S25F1020C5N when a faster speed grade is required. For new designs in 2026, consider migrating to a Stratix II EP2S25 or a current-generation Intel Agilex 7 device — same / larger logic capacity on a more modern process node. All EP1S25F1020 variants are obsolete; verify long-term supply before committing to a new design.

Comparison with Alternatives

Parameter This Product EP1S25F1020I6 EP1S25F1020C7N EP1S25F1020C6N EP1S25F1020C6 EP1S25F1020C5N EP1S25B672C7N
Brand Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera)
Package FC-FBGA-1020 (33×33 mm, 1 mm pitch) FC-FBGA-1020 (same) FC-FBGA-1020 (same) FC-FBGA-1020 (same) FC-FBGA-1020 (same) FC-FBGA-1020 (same) BGA-672 (different)
Logic Cells 25,660 25,660 (same die) 25,660 25,660 25,660 25,660 25,660
User I/Os 706 706 706 706 706 706 426 (BGA-672)
Embedded Memory (bits) 1,944,576 1,944,576 1,944,576 1,944,576 1,944,576 1,944,576 1,944,576
Core Voltage 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V 1.5 V
Operating Temperature 0 to +85 °C (industrial) 0 to +85 °C (industrial) 0 to +70 °C (commercial) 0 to +70 °C (commercial) 0 to +70 °C (commercial) 0 to +70 °C (commercial) 0 to +70 °C (commercial)
Speed Grade -6 (I6) -6 -7 (slower) -6 (same) -6 (same) -5 (faster) -7 (slower)
RoHS / Pb-Free Pb-free (N suffix) Non-Pb-free Pb-free (N suffix) Pb-free (N suffix) Non-Pb-free Pb-free (N suffix) Pb-free (N suffix)

Key Differentiators

  • Original Stratix flagship density with 25,660 logic cells (vs EP1S25B672C7N)
  • Industrial (-I6) temperature screening at the -6 speed grade (vs EP1S25F1020C7N)
  • Pb-free (N suffix) for RoHS-compliant assembly (vs EP1S25F1020I6)
  • Largest package in the EP1S25 family — full I/O availability (vs EP1S25B672C7N)

Design Notes

The EP1S25F1020I6N ships in a 33 × 33 mm FC-FBGA with 1.00 mm pitch, which requires at least 6 PCB layers (signal / ground / power / signal) and via-in-pad or microvia technology for reliable assembly. Estimated: at 1.00 mm pitch with 0.5 mm drilled microvias, the stack-up should use 0.5–1 oz copper outer layers and a high-Tg (≥170 °C) FR-4 substrate. Decoupling: place 0.1 µF X7R capacitors within 3 mm of every VCC / VCCIO / VCCPD ball pair, and add 10 µF bulk capacitors at each power-supply island. Following Altera's Stratix hardware-design checklist is mandatory to meet signal-integrity targets on the 706 I/O channels.

The EP1S25F1020I6N requires a 1.5 V core rail plus multiple VCCIO bank rails (1.5 V, 1.8 V, 2.5 V, 3.3 V depending on the I/O standard) and the VCCA / VCCPD auxiliary supply used for configuration and JTAG. Estimated: at typical utilization (≈60% logic, ≈50% memory, all 706 I/Os at 25 MHz LVCMOS 3.3 V), the device draws approximately 1.5–2.0 A on the 1.5 V core. Power sequencing must follow the Stratix handbook: VCCINT (core) must ramp before or simultaneously with VCCPD; VCCIO can come up independently. Use a supervisor IC (e.g. a TPS3808-style voltage monitor) to hold nCONFIG low until all rails are within spec.

Although an FPGA, the EP1S25F1020I6N can dissipate significant power through its FC-BGA package. Estimated: at 2 W total power dissipation and a typical theta-JA of ≈12 °C/W for the 33 × 33 mm BGA on a 6-layer PCB with thermal vias, junction temperature rises ≈24 °C above ambient — manageable for the industrial 0–85 °C range but with limited margin at the high end. Place a 5 × 5 array of thermal vias (0.3 mm drill, 1.0 mm pitch) under the central BGA ground balls to spread heat into the inner ground plane. For systems that approach the package's rated power, attach a heatsink with thermal interface material to the top of the package.

Common pitfalls with the EP1S25F1020I6N include: (1) confusing the I6 industrial grade with the I7 extended-temperature grade — the I6 is 0–85 °C, not −40 to +100 °C; (2) leaving MSEL[2:0] / nCONFIG / nSTATUS / CONFIG_DONE floating instead of pulling them to the documented logic level for the desired configuration mode (AS / PS / JTAG / Fast Passive Parallel); (3) failing to include the 50 MHz configuration clock and 16-bit data bus for the EPC16 / EPCS configuration device; (4) mixing the FC-BGA with a non-flip-chip-compatible footprint (this is an FC-BGA, not a wire-bond BGA — paste-mask and reflow profile differ). Always re-verify pin assignments against the Quartus pinout file for the exact device variant.

Compliance Information

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

Per Altera / Intel product page, the EP1S25F1020I6N is RoHS-compliant per the N-suffix ordering code. Not AEC-Q100 qualified — this is a general-purpose industrial FPGA, not an automotive part. Conflict-minerals compliance is assumed per Intel's standard policy; refer to the Intel Conflict Minerals Statement for formal documentation. The part is officially obsolete per GlobalSpec and major distributor listings.

Data verified on: 2026-09-07 — data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Intel Altera Stratix EP1S25F1020I6N FPGA Field Programmable Gate Array Programmable Logic CMOS 130 nm process FC-FBGA BGA-1020 FC-FBGA-1020 TriMatrix memory LAB (Logic Array Block) DSP block RoHS AEC-Q100 JEDEC J-STD-020 Quartus 1.5 V core industrial temperature range ASIC prototyping SDI video processing wireline communications test and measurement military aerospace
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