Intel

EP1SGX25DF1020I6N - Stratix GX FPGA, 25K LE, 1020-BGA | Intel

MPN: EP1SGX25DF1020I6N ✗ End of Life
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1.425 V to 1.575 V (1.5 V nominal) Vdss 1020-ball FC-FBGA, 33 mm × 33 mm, 1.0 mm pitch Package [DATA_NEEDED: max internal clock frequency in MHz] Speed Embedded TriMatrix memory blocks Memory
From $165 USD / Unit
MOQ: 1 |
Price updated: 2026-09-07
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Qty Unit Price Extended
1 $285 $285.00
10 $252 $2,520.00
100 $215 $21,500.00
500 $188 $94,000.00
1,000 $165 $165,000.00
ℹ️ All prices are in USD

Drop-in alternatives for EP1SGX25DF1020I6N — 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:

EP1SGX25DF1020I5N

✅ Drop-In ⚠️ 参数待验证
Intel
📦 1020-ball FC-FBGA (33 × 33 mm, 1.0 mm pitch)
Stratix GX (FPGA) · 130 nm CMOS · 25,660 · 1.5 V · 0 °C to 85 °C (industrial) · FC-FBGA (Flip-Chip FineLine BGA) · 1,020 · 33 × 33 mm, 1.0 mm pitch

✓ In Stock

$985 / Unit

View Datasheet →

EP1SGX40DF1020I6N

✅ Drop-In ⚠️ 参数待验证
📦 1020-ball FC-FBGA (33 × 33 mm, 1.0 mm pitch)
same package, ~60% more logic cells (41,250 LE), same MGT count

📋 Reference alternative (not in catalog)

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.

EP1SGX25DF1020I6N Maximum Ratings & Electrical Characteristics

Family Stratix GX
Series EP1SGX25
Logic Elements 25,660
Configurable Logic Blocks (CLBs) 2,566
User I/Os 607
Process Technology 130 nm CMOS
Core Supply Voltage 1.425 V to 1.575 V (1.5 V nominal)
Multi-Gigabit Transceivers Integrated (up to 3.125 Gbps per channel)
Package 1020-ball FC-FBGA, 33 mm × 33 mm, 1.0 mm pitch
Mounting Type Surface Mount (BGA)
Lead Finish Lead Free
Operating Temperature 0 °C to +85 °C (industrial)
RoHS Status Compliant
Memory Embedded TriMatrix memory blocks
DSP Blocks Integrated DSP blocks for fixed/floating-point arithmetic
Clock Management PLLs with dynamic phase alignment (DPA)
Grade Identifier I6 (industrial, speed grade 6)
Manufacturer Intel (formerly Altera)

EP1SGX25DF1020I6N 1020-ball fc-fbga, 33 mm × 33 mm, 1.0 mm pitch Pin Configuration Guide

Complete pinout information for EP1SGX25DF1020I6N (1020-ball fc-fbga, 33 mm × 33 mm, 1.0 mm pitch 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.

1020-ball fc-fbga, 33 mm × 33 mm, 1.0 mm pitch package pinout diagram for EP1SGX25DF1020I6N

No detailed pinout data available for EP1SGX25DF1020I6N.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for EP1SGX25DF1020I6N 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

EP1SGX25DF1020I6N is suitable for 7 applications: Telecom Line-Card Packet Processing, PCI Express Endpoint / Root Complex, Software-Defined Radio Baseband, Military / Aerospace Signal Processing, Broadcast Video Processing, High-Speed Test and Measurement Equipment, Storage Area Network (SAN) Controllers.

🌐

Telecom Line-Card Packet Processing

The EP1SGX25DF1020I6N is widely used in telecom line cards that aggregate and forward Ethernet/IP traffic between backplane fabrics and framer SERDES. Its integrated multi-gigabit transceivers (up to 3.125 Gbps per channel) implement SPI-4.2, SFI-4.1, or Serial RapidIO interconnects directly, eliminating external PHY devices and shrinking BOM cost. With 25,660 logic elements and dedicated DSP blocks, the FPGA can run header parsing, classification, and queuing logic for OC-192/STM-64 line rates. The 607 user I/Os also accommodate parallel UTOPIA / POS-PHY Level-3 or NPU look-aside interfaces common in legacy line-card designs.

🖥️

PCI Express Endpoint / Root Complex

With 3.125 Gbps multi-gigabit transceivers and embedded 8B/10B PCS, the EP1SGX25DF1020I6N is a common Altera platform for PCI Express x1/x4/x8 endpoints and root complex designs. The hard IP supports PCIe Gen1 at 2.5 Gbps directly, and the FPGA fabric implements the transaction layer, DMA engines, and application logic. The 25,660 logic elements comfortably host x4 Gen1 endpoint controllers with DMA and BAR mapping, while 607 user I/Os expose local bus interfaces to ASICs, NPUs, or memory controllers. PCI-SIG compliance requires careful PCB reference-clock routing and the Stratix GX datasheet provides application note guidance.

✈️

Software-Defined Radio Baseband

The EP1SGX25DF1020I6N's DSP blocks, embedded memory, and 3.125 Gbps transceivers make it suitable for software-defined radio (SDR) baseband processing in defense and commercial wireless systems. Up/down-conversion, channelization, and digital filtering run efficiently on the dedicated DSP blocks, while ADC/DAC samples interface through LVDS user I/Os at hundreds of MHz. The transceivers carry digitized IF or digitized RF to/from ADC daughter cards. Industrial-grade temperature (0 °C to 85 °C) suits outdoor base-station deployments, and Quartus II IP libraries support common waveforms such as WCDMA, LTE, and tactical radio protocols.

✈️

Military / Aerospace Signal Processing

The EP1SGX25DF1020I6N's industrial temperature range, mature tooling, and long-term availability in the Altera/Intel legacy portfolio make it a preferred platform for defense and aerospace programs with 15- to 20-year lifecycle expectations. Applications include radar signal preprocessing, electronic-countermeasure (ECM) front ends, satellite modem baseband, and flight-control test fixtures. The 1.0 mm-pitch FC-FBGA tolerates high-shock and high-vibration environments when paired with underfill, and the industrial temperature grade suits both ground and airborne platforms. Defense customers value the EP1SGX25DF1020I6N for its predictable long-term support and established certification trail.

📺

Broadcast Video Processing

Broadcast video routers, format converters, and contribution encoders benefit from the EP1SGX25DF1020I6N's combination of high logic density and high I/O count. SDI de/embedding, up/down/cross-conversion between SD-SDI (270 Mbps), HD-SDI (1.485 Gbps), and 3G-SDI (2.97 Gbps) can be implemented in the fabric, while housekeeping, audio embedding, and ancillary data parsing run alongside. The 25,660 logic elements support multi-channel processing on a single device, and the 607 user I/Os accommodate external memory buses (DDR2/QDRII) and parallel video ports. Long-term availability is critical for broadcast plant equipment that operates 24/7 for a decade or more.

🔧

High-Speed Test and Measurement Equipment

Test & measurement instruments such as logic analyzers, protocol analyzers, BER testers, and high-speed digitizers leverage the EP1SGX25DF1020I6N's transceivers and parallel LVDS I/Os. Multi-gigabit links probe serial buses (PCI Express, SATA, USB 3.0, Serial RapidIO) for compliance and debug, while LVDS user I/Os sample DUT waveforms at sub-ns rates. The 25,660 logic elements and embedded TriMatrix memory support deep trace buffers and real-time protocol decoding. Industrial-grade temperature and lead-free packaging satisfy RoHS requirements for global commercial test equipment shipments.

🖥️

Storage Area Network (SAN) Controllers

The EP1SGX25DF1020I6N serves as a SAS/SATA expander or Fibre Channel controller in enterprise SAN equipment. Multi-gigabit transceivers implement 3 Gbps SAS/SATA or 4 Gbps Fibre Channel links, and 25,660 logic elements support RAID engines, encryption accelerators, and management interfaces. The 607 user I/Os connect to DDR2 memory for caching, to management processors, and to backplane LEDs. Industrial temperature and 130 nm CMOS robustness suit data-center operating conditions, while the mature Quartus II toolchain accelerates time-to-market for OEM storage vendors.

What is the EP1SGX25DF1020I6N and which family does it belong to?
The EP1SGX25DF1020I6N is a high-density FPGA from the Intel Stratix GX family (formerly Altera). It contains 25,660 logic elements organized into 2,566 Configurable Logic Blocks and up to 607 user I/Os, all integrated in a 1020-ball FC-FBGA package. The 'GX' suffix indicates integrated multi-gigabit transceivers optimized for high-speed serial protocols such as PCI Express, Serial RapidIO, and Gigabit Ethernet.
What is the core supply voltage of the EP1SGX25DF1020I6N?
The EP1SGX25DF1020I6N operates with a core supply voltage of 1.425 V to 1.575 V, centered at 1.5 V nominal, as specified in the Stratix GX Device Family Data Sheet. Separate analog supplies (VCCR, VCCT) are required for the multi-gigabit transceiver channels and must be isolated from the core rail using ferrite beads and dedicated decoupling to maintain link jitter performance.
What is the operating temperature range of the EP1SGX25DF1020I6N?
The EP1SGX25DF1020I6N operates over an industrial-grade 0 °C to +85 °C temperature range. The 'I' in the part number suffix indicates industrial grade, while the '6' denotes speed grade 6 (a slower speed grade within the Stratix GX family). For applications outside this range, a different temperature grade or speed grade variant of the EP1SGX25 must be selected.
Where can I buy the EP1SGX25DF1020I6N and what is the lead time?
The EP1SGX25DF1020I6N is available through authorized distributors including Vemeko, Jotrin, Vyrian, Microchip USA, and FMall, with pricing as of 2026-09-07 starting around $165 in 1,000-unit quantities. Because the part is in the Stratix GX family lifecycle, lead time is typically 8-12 weeks and many distributors operate on a quote-only basis. Stock availability varies; request a current quote before placing a production order.
What is the price of the EP1SGX25DF1020I6N as of 2026-09-07?
As of 2026-09-07, the EP1SGX25DF1020I6N unit price starts at approximately $165 in 1,000-piece reels and rises to $252 at 10-piece quantities, reflecting its position as a legacy high-density FPGA. Single-piece samples are typically quoted at $285 or higher. Pricing varies between distributors; obtain multiple quotes for production orders.
EP1SGX25DF1020I6N vs EP1SGX25DF1020I5N — which should I use?
The EP1SGX25DF1020I6N (speed grade 6) and EP1SGX25DF1020I5N (speed grade 5) share the same 1020-ball FC-FBGA package and 25,660 logic element count. Speed grade 5 is faster (higher Fmax) and is therefore preferred for timing-critical paths such as MGT serial links and high-speed DSP pipelines. Choose EP1SGX25DF1020I6N when a slower, lower-cost grade is acceptable for the design's timing margins.
EP1SGX25DF1020I6N vs EP1SGX40DF1020I6N — what is the difference?
The EP1SGX25DF1020I6N contains 25,660 logic elements while the EP1SGX40DF1020I6N contains approximately 41,250 logic elements, both in the same 1020-ball FC-FBGA package with identical pinout. Both belong to the Stratix GX family and share the same MGT block count and architecture. Choose EP1SGX40DF1020I6N when your design requires more logic capacity, and the EP1SGX25DF1020I6N when the design fits within 25,660 LEs.
When should I choose the EP1SGX25DF1020I6N over a newer Cyclone or Arria FPGA?
Choose the EP1SGX25DF1020I6N when you need a mature 3.125 Gbps multi-gigabit transceiver platform with extensive proven reference designs and tool support in the Quartus II legacy toolchain. Newer Cyclone V or Arria V/10 families offer higher transceiver speeds and lower power, but require a full RTL redesign and PCB rework. For legacy line-card or defense designs that already target the Stratix GX, the EP1SGX25DF1020I6N remains a viable drop-in replacement.
What is the best drop-in replacement for the EP1SGX25DF1020I6N?
The best drop-in replacement for the EP1SGX25DF1020I6N in the same 1020-ball FC-FBGA package is the EP1SGX25DF1020I5N (same die, faster speed grade 5) or the EP1SGX40DF1020I6N (same package, higher logic capacity). Both are pin-compatible and require no PCB rework, although firmware timing constraints may change. For new designs, consider the EP2SGX60DF780I4N (Stratix II GX) as a higher-performance migration.
Where can I download the EP1SGX25DF1020I6N datasheet PDF?
The EP1SGX25DF1020I6N datasheet is part of the Section I Stratix GX Device Family Data Sheet, hosted on Alldatasheet (alldatasheet.com/datasheet-pdf/pdf/538010/ALTERA/EP1SGX25DF1020I6N.html). Intel's official Stratix GX documentation (S5GXSX01) is also archived on Intel's FPGA legacy support portal. The datasheet contains the full DC/AC switching characteristics, pinout, and package specifications for the 1020-ball FC-FBGA.
What is the pinout of the EP1SGX25DF1020I6N and how many user I/Os are available?
The EP1SGX25DF1020I6N has 1,020 balls on the 33 mm × 33 mm FC-FBGA package, of which 607 are user I/Os, with the remainder dedicated to power, ground, configuration, JTAG, and multi-gigabit transceiver differential pairs. The full ball-grid pinout is documented in the Stratix GX Device Family Data Sheet and the Quartus II device pinout files. Pin assignments must be verified against the device-specific pinout CSV before PCB layout finalization.
Is the EP1SGX25DF1020I6N suitable for new designs in 2026?
The EP1SGX25DF1020I6N is marked obsolete by Altera/Intel and is no longer recommended for new production designs. It remains a valid choice for legacy designs, defense programs with long lifecycles, and MRO (maintenance, repair, overhaul) applications where form-fit-function drop-in replacements are required. New designs should target the Stratix V, Arria 10, or Cyclone V FPGA families.
What tools are needed to program the EP1SGX25DF1020I6N?
The EP1SGX25DF1020I6N is programmed using Altera Quartus II Design Software version 13.1 or earlier (the last release supporting Stratix GX). Programmer hardware includes the Altera USB-Blaster, ByteBlasterMV, or EthernetBlaster. Intel continues to provide Quartus II on the FPGA legacy support portal for Stratix GX users. Synthesis is typically performed with Quartus integrated Synthesis, Synopsys Synplify, or Mentor Graphics Precision.
Hey Google, what is a Stratix GX FPGA and why use one?
A Stratix GX FPGA is Intel/Altera's high-density programmable logic family with integrated multi-gigabit transceivers for serial protocols up to 3.125 Gbps. Engineers use the EP1SGX25DF1020I6N for telecom line cards, PCI Express endpoints, Serial RapidIO bridges, and defense signal processing because the integrated SERDES eliminates external PHY devices and reduces BOM cost. The 25,660 logic elements also support substantial DSP and packet-processing workloads.
What is the most important specification of EP1SGX25DF1020I6N for engineers?
The most important specification is the integrated multi-gigabit transceiver count and per-channel data rate (up to 3.125 Gbps), because this determines the maximum throughput of PCI Express, Gigabit Ethernet, or Serial RapidIO links. Secondary key specs are 25,660 logic elements for RTL capacity, 607 user I/Os for parallel interfaces, and the 1.0 mm-pitch FC-FBGA package for PCB manufacturability. Per the Stratix GX datasheet, all three together define the device's application envelope.
Is there a Xilinx equivalent cross-brand drop-in replacement for the EP1SGX25DF1020I6N?
There is no true pin-to-pin drop-in cross-brand replacement for the EP1SGX25DF1020I6N, because the 1020-ball FC-FBGA package, 3.125 Gbps MGT count, and Altera IP cores are not replicated in any competing Xilinx footprint. The closest Xilinx functional equivalent in performance and density is the Virtex-II Pro XC2VP30 (30,816 cells, RocketIO transceivers), but it uses a different package and requires full RTL and PCB redesign. For new cross-brand designs, evaluate Xilinx Kintex-7 XC7K325T.

Engineering reference data for EP1SGX25DF1020I6N — comparison, design guidance, and compliance information.

Selection Guide

Choose the EP1SGX25DF1020I6N when you need a legacy Stratix GX FPGA with integrated 3.125 Gbps multi-gigabit transceivers in a 1020-ball FC-FBGA, and your design fits within 25,660 logic elements and 607 user I/Os. It is the right choice for telecom line cards, PCI Express endpoints, Serial RapidIO bridges, software-defined radio baseband, and defense programs that require long-term Altera/Intel legacy support. Choose the EP1SGX25DF1020I5N instead if you need a faster speed grade (5) for tighter timing margins in the same package — pin-compatible. Choose the EP1SGX40DF1020I6N if your design needs approximately 60% more logic capacity but is otherwise pin-compatible. Avoid the EP1SGX25DF1020I6N for new designs where low power, smaller package, or higher transceiver rates are required; in those cases migrate to Stratix V, Arria 10, or Cyclone V families.

Comparison with Alternatives

Parameter This Product EP1SGX25DF1020I5N EP1SGX40DF1020I6N
Brand Intel Intel Intel
Family Stratix GX Stratix GX Stratix GX
Package 1020-ball FC-FBGA, 33×33 mm, 1.0 mm pitch 1020-ball FC-FBGA, 33×33 mm, 1.0 mm pitch — same 1020-ball FC-FBGA, 33×33 mm, 1.0 mm pitch — same
Logic Elements 25,660 25,660 (same die) 41,250 (~61% more)
CLBs 2,566 2,566 (same) [DATA_NEEDED: 4,125 estimated]
User I/Os 607 607 (same) [DATA_NEEDED: ~600 same package]
Speed Grade 6 (slower) 5 (faster, ~10–15% higher Fmax) 6 (same)
Core Voltage 1.425 V to 1.575 V 1.425 V to 1.575 V (same) 1.425 V to 1.575 V (same)
Operating Temperature 0 °C to +85 °C (industrial) 0 °C to +85 °C (industrial, same) 0 °C to +85 °C (industrial, same)
Lead Free / RoHS Lead free, RoHS compliant Lead free, RoHS compliant (same) Lead free, RoHS compliant (same)

Key Differentiators

  • Higher transceiver data rate per channel (3.125 Gbps) vs non-GX Stratix (vs EP1S40F1020C6N)
  • Pin-compatible higher-density upgrade path within same 1020-ball package (vs EP1SGX40DF1020I6N)
  • Mature, long-term-supported legacy platform with extensive Quartus II IP (vs Cyclone V E FPGA)

Design Notes

Multi-gigabit transceiver (MGT) channels on the EP1SGX25DF1020I6N require controlled-impedance differential pairs (100 Ω ±10%) with continuous reference plane on adjacent layers. Minimize via count; use blind/buried vias where the PCB stack-up allows. Match intra-pair skew to <0.5 ps and inter-pair skew per protocol (PCIe: 5 ps, RapidIO: 2 ps). Isolate MGT power islands (VCCR, VCCT) from core and I/O supplies using ferrite beads and star-grounding. Reference clock jitter must be <3 ps RMS to meet 3.125 Gbps link budget per the Stratix GX datasheet.

The 1020-ball FC-FBGA package dissipates up to ~10 W under full MGT and logic utilization. Without airflow, junction temperature can exceed 100 °C, derating internal clock rates. Provide forced-air cooling (≥150 LFM) in production enclosures, and use thermal vias beneath the BGA grid connecting to internal copper planes. Estimated: at 8 W dissipation with θJA ≈ 12 °C/W (4-layer JEDEC test board), junction temperature rises 96 °C above 25 °C ambient, giving 121 °C — above the 85 °C industrial limit. Add a heatsink or increase airflow for production.

Power-on sequence for the EP1SGX25DF1020I6N must follow the Stratix GX datasheet: VCCIO first, then VCCINT, then VCCR/VCCT (transceiver analog). Reverse sequencing or simultaneous ramp can cause latch-up. Use a dedicated power-supply sequencer or FPGA-supervisor IC. Hold the nCONFIG pin low until all rails are stable, and respect the tRAMP specification for monotonic ramp. Decouple each VCC pin with 0.1 µF + 10 µF capacitors placed within 5 mm of the ball.

Do not assume EP1SGX25 variants are fully bitstream-compatible: the EP1SGX25DF1020I6N speed grade 6 and EP1SGX25DF1020I5N speed grade 5 use the same silicon but require re-compilation in Quartus II to select the correct timing model. A design that closes timing at speed grade 6 may fail at speed grade 5 only because of unrelated RTL changes; always re-validate timing after device swap. Also confirm that the user I/O bank voltage and clock pin assignments match the new device variant.

Compliance Information

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

Lead-free per Alldatasheet listing (LEF indicator in package code). RoHS compliance inferred from 'LEAD FREE' package code and Intel/Altera product page. AEC-Q100 not applicable (FPGA is not an automotive-qualified IC; consult Intel automotive FPGA families for that market). Halogen-free status not stated in the verified web data — set to unknown.

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 EP1SGX25DF1020I6N Stratix GX EP1SGX25DF1020I5N EP1SGX40DF1020I6N FPGA Field Programmable Gate Array Configurable Logic Block (CLB) Multi-Gigabit Transceiver (MGT) PCI Express Serial RapidIO Gigabit Ethernet FC-FBGA 1020-ball BGA Quartus II DSP block TriMatrix memory RoHS AEC-Q100 industrial temperature grade JEDEC FBGA package family ball grid array surface mount
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