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Intel

EP1SGX25DF800I6N - Stratix GX FPGA, 25K LE, 20x 3.1875 Gbps Transceivers | Intel / Altera

MPN: EP1SGX25DF800I6N ⚠ Last Time Buy
In Stock Ships in 1-3 business days
LVDS, LVTTL, LVCMOS, SSTL, HSTL Rds(on) 800-pin FineLine BGA (DF800) Package -6 (production grade) Speed TriMatrix memory, up to 2 Mbits Memory
From $1450 USD / Unit
MOQ: 1 |
Price updated: 2026-09-07
Volume Pricing
Qty Unit Price Extended
1 $1850 $1,850.00
10 $1720 $17,200.00
25 $1620 $40,500.00
50 $1535 $76,750.00
100 $1450 $145,000.00
ℹ️ All prices are in USD

Drop-in alternatives for EP1SGX25DF800I6N — 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:

EP1SGX25DF800C6N

✅ Drop-In
Intel
📦 FineLine BGA-800 (DF800)
Stratix GX · 25,560 LEs · 20 channels · 3.1875 Gbps · FBGA-780 (FineLine BGA, 800-ball per JEDEC ordering code) · [DATA_NEEDED: process node] · 1.5 V · Commercial (0 C to +85 C)

✓ In Stock

$118 / Unit

View Datasheet →

EP1SGX25DF800C5N

✅ Drop-In
Intel
📦 FineLine BGA-800 (DF800)
Stratix GX · 25,660 (typical) · 8 (full-duplex) · 3.1875 Gbps per channel · 130 nm · 1.5 V typical · FBGA-800 (FineLine BGA, 31x31 mm) · C5 (commercial)

✓ In Stock

$158 / Unit

View Datasheet →

EP1SGX25DF672C7N

✅ Drop-In
Intel
📦 FineLine BGA-672 (DF672)
Stratix GX · 25,660 · 1,944,576 bits · 455 · 4 · 3.125 Gbps · 1.5 V · 130 nm CMOS

✓ In Stock

$245 / Unit

View Datasheet →

EP1SGX25DF672I6N

✅ Drop-In
Intel
📦 FineLine BGA-672 (DF672)
Intel (formerly Altera) · Stratix GX · 25,660 · 2566 · 455 · 1.425 V to 1.575 V (nominal 1.5 V) · 0C to 85C (Industrial) · 672-BBGA, FCBGA

✓ In Stock

$298 / Unit

View Datasheet →

EP1SGX25CF672I6

✅ Drop-In
Intel
📦 FineLine BGA-672 (CF672)
Stratix GX · 25,660 · 2,566 · 1,944,576 · 455 · 1.425 V to 1.575 V (1.5 V typical) · 130 nm CMOS · Up to 5000 MHz

✓ In Stock

$171 / Unit

View Datasheet →

EP1SGX25DF800I6N Maximum Ratings & Electrical Characteristics

Family Stratix GX
Transceiver Channels 4 to 20 channels
Maximum Transceiver Data Rate 3.1875 Gbps per channel
CDR / SERDES Embedded clock-data recovery and SERDES
Memory TriMatrix memory, up to 2 Mbits
DSP Blocks Up to 22 DSP blocks
Hard IP PCI Express PHY, external memory interfaces (DDR, DDR-II, QDR-II, RLDRAM-II)
Source-Synchronous Channels 8 channels
I/O Standards LVDS, LVTTL, LVCMOS, SSTL, HSTL
Package 800-pin FineLine BGA (DF800)
Speed Grade -6 (production grade)
Temperature Range Industrial -40C to +100C
Protocol Support Gigabit Ethernet, SONET/SDH, PCI Express, custom serial

EP1SGX25DF800I6N 800-pin fineline bga (df800) Pin Configuration Guide

Complete pinout information for EP1SGX25DF800I6N (800-pin fineline bga (df800) 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.

800-pin fineline bga (df800) package pinout diagram for EP1SGX25DF800I6N

No detailed pinout data available for EP1SGX25DF800I6N.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for EP1SGX25DF800I6N 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

EP1SGX25DF800I6N is suitable for 7 applications: 10G / Multi-Gigabit Backplane Routing, SONET / SDH Framer Interfaces, Storage Area Network (SAN) Bridges, PCI Express Endpoint / Root Complex, Broadcast Video Processing, Industrial Test & Measurement Instrumentation, Aerospace & Defense High-Speed Links.

🌐

10G / Multi-Gigabit Backplane Routing

The EP1SGX25DF800I6N integrates up to 20 transceiver channels at 3.1875 Gbps each, providing the channel density needed for multi-gigabit serial backplanes in core routers, switches, and ATCA chassis. The on-chip CDR, 8B/10B encoder, and rate-matching FIFO simplify PHY implementation, eliminating the external SERDES ICs and reducing BOM cost by 30-50% versus a discrete transceiver approach.

🌐

SONET / SDH Framer Interfaces

The Stratix GX transceiver block supports OC-48 (2.488 Gbps) and OC-96 rates that map directly to SONET/SDH framer interfaces in optical transport equipment. The device's built-in 8B/10B coding, programmable pre-emphasis, and adjustable receiver equalization compensate for FR-4 backplane loss, while the industrial temperature grade (-40C to +100C) suits outdoor telecom cabinets.

🖥️

Storage Area Network (SAN) Bridges

The EP1SGX25DF800I6N's high-speed transceivers enable SAS, SATA, Fibre Channel, and custom serial bridges for enterprise storage arrays. Its hard PCI Express endpoint PHY supports x4 PCIe at 10 Gbps aggregate, allowing direct host interface integration, while the TriMatrix memory blocks (up to 2 Mbits) provide buffering for protocol translation. The -6 industrial speed grade handles demanding thermal environments.

🖥️

PCI Express Endpoint / Root Complex

The hard PCI Express PHY integrated in the Stratix GX family supports endpoint and root-complex configurations at x1 / x4 lane widths up to 2.5 Gbps per lane. This eliminates the need for an external PCIe PHY IC, reducing board area and BOM. Combined with the TriMatrix memory and 22 DSP blocks, the device serves as a complete PCIe card controller in test, instrumentation, and telecom applications.

📺

Broadcast Video Processing

The Stratix GX DSP blocks and high-speed serial I/O make the EP1SGX25DF800I6N well suited for HD-SDI (1.485 Gbps) and 3G-SDI (2.97 Gbps) video processing, frame synchronizers, and broadcast routers. The 8 source-synchronous channels support parallel LVDS interfaces to camera sensors and HDMI transmitters. Industrial temperature rating supports live-event broadcast equipment.

🔧

Industrial Test & Measurement Instrumentation

The industrial -40C to +100C temperature range and the high-speed transceivers of the EP1SGX25DF800I6N make it suitable for portable protocol analyzers, oscilloscope acquisition modules, and bit-error-rate testers in industrial labs. The on-chip DSP blocks accelerate real-time protocol decoding, while the 800-pin BGA package supports the high pin count required by parallel test interfaces.

✈️

Aerospace & Defense High-Speed Links

The EP1SGX25DF800I6N's industrial temperature range and rugged BGA package suit aerospace and defense applications such as avionics data buses, radar signal processing, and secure communications. The transceiver block supports custom serial protocols used in MIL-STD-1553 derivatives and proprietary high-speed links. Note that this is a commercial-grade part; full MIL-PRF qualification requires a different part designation.

Recommended Products Summary

TLK10002 External 1-3.125 Gbps SERDES companion if extra channels needed Used in: 10G / Multi-Gigabit Backplane Routing EP1SGX10DF672I6N Intel Used in: 10G / Multi-Gigabit Backplane Routing EP1S80F1508C7 Intel Used in: SONET / SDH Framer Interfaces EP2SGX60DF780C5N Stratix II GX successor with 6.375 Gbps transceivers for OC-192 Used in: SONET / SDH Framer Interfaces EP1SGX25DF672C7N Intel Used in: Storage Area Network (SAN) Bridges TLK2201 Texas Instruments 1.0-1.3 Gbps SERDES for SATA extension Used in: Storage Area Network (SAN) Bridges EP1SGX10CF672C7N Intel Used in: PCI Express Endpoint / Root Complex PEX8311 External PCIe switch companion for multi-port endpoint designs Used in: PCI Express Endpoint / Root Complex EP1S60F1508C7N Intel Used in: Broadcast Video Processing GS2960 Gennum SDI serializer companion chip Used in: Broadcast Video Processing EP1SGX25CF780I6 Altera Used in: Industrial Test & Measurement Instrumentation AD9430 Analog Devices 12-bit 210 MSPS ADC companion Used in: Industrial Test & Measurement Instrumentation EP1S25F1020I6N Intel Used in: Aerospace & Defense High-Speed Links HMF2400 Rad-hard SERDES companion for space-grade applications Used in: Aerospace & Defense High-Speed Links
What is the maximum transceiver data rate of the EP1SGX25DF800I6N?
The EP1SGX25DF800I6N supports up to 3.1875 gigabits per second (Gbps) per high-speed transceiver channel, with up to 20 channels available across the Stratix GX family. According to the Altera Stratix GX datasheet, each channel embeds clock-data-recovery (CDR) and SERDES, with built-in 8B/10B encoding to support protocols such as 1.25 Gbps Gigabit Ethernet, 2.5 Gbps PCI Express, and 3.125 Gbps serial RapidIO.
What package does the EP1SGX25DF800I6N use?
The EP1SGX25DF800I6N is supplied in an 800-pin FineLine BGA (DF800) package. The DF800 suffix in the part number indicates this specific BGA variant, and the I6N suffix denotes the -6 industrial speed grade with Pb-free / lead-free RoHS-friendly terminal finish. The package supports the high pin-count required by the transceiver, memory, and DSP blocks.
Is the EP1SGX25DF800I6N obsolete or still active?
The EP1SGX25DF800I6N is in the last-time-buy (LTB) phase of its lifecycle, meaning Altera / Intel is no longer accepting new orders for production volumes and is winding down the part. New designs should not target this device; instead, consider pin-compatible Stratix GX family members with the same DF800 BGA footprint or migrate to Stratix II GX / Stratix IV GX successors with a planned re-layout.
What is the difference between EP1SGX25DF800I6N and EP1SGX25DF800C6N?
The I6N suffix indicates an industrial temperature range of -40C to +100C, while the C6N suffix indicates a commercial temperature range of 0C to +85C. Both share the same 800-pin DF800 BGA package, the same -6 speed grade, and identical logic, memory, and transceiver resources. Choosing I6N enables outdoor or industrial cabinet deployment at higher BOM cost.
Can EP1SGX25DF800C5N drop in for EP1SGX25DF800I6N?
Yes - the EP1SGX25DF800C5N shares the same 800-pin DF800 FineLine BGA footprint and pinout as the I6N variant. The differences are the temperature range (commercial 0C to +85C vs industrial -40C to +100C) and the speed grade (-5 vs -6, where -5 is slower). Choose C5N only if your design runs cooler and accepts the lower speed bin; do not substitute an I6N-rated application with C5N if you need industrial temperature support.
Where can I download the EP1SGX25DF800I6N datasheet PDF?
The official Stratix GX datasheet is hosted on Mouser Electronics at https://www.mouser.com/datasheet/2/612/ds_sgx-1299424.pdf and on Alldatasheet as the EP1SGX25 / EP1SGX25F family PDF. Because this part is in last-time-buy status, Altera / Intel strongly recommends downloading and archiving the document now and ordering any lifetime-need quantity before the final buy deadline.
How much does the EP1SGX25DF800I6N cost in 2026?
As of 2026-09-07, the EP1SGX25DF800I6N is priced in the $1,450 - $1,850 USD range depending on quantity (1-piece pricing around $1,850 with quantity discounts down to roughly $1,450 at 100 pieces). Because the part is in last-time-buy, spot-market pricing may be higher and lead times longer than for active components. Always confirm current stock and RoHS paperwork with your franchised distributor.
What is the lead time for EP1SGX25DF800I6N?
The EP1SGX25DF800I6N has a lead time of approximately 8 to 14 weeks from franchised distributors as of 2026-09-07, due to its last-time-buy lifecycle status. Some specialty brokers carry small stock lots, but the Altera / Intel authorized channel is the primary source. For new designs, plan around 12-week lead time and order the full lifetime quantity in one PO to avoid second-allocation pressure.
What protocols does the EP1SGX25DF800I6N transceiver block support?
The Stratix GX transceiver block supports 1.25 Gbps Gigabit Ethernet, 2.5 Gbps PCI Express, 3.125 Gbps serial RapidIO, SONET/SDH framer rates, XAUI (4 x 3.125 Gbps), and custom serial protocols up to 3.1875 Gbps. Built-in 8B/10B encoding, word alignment, and rate-matching FIFOs simplify PHY implementation. The hard PCI Express PHY supports endpoint and root-complex configurations up to x4 lane width.
Is the EP1SGX25DF800I6N suitable for 10-Gigabit Ethernet applications?
The EP1SGX25DF800I6N can implement a 10 Gigabit Ethernet (10GE) MAC and connect to an external XAUI / 10GBASE-R PHY through four 3.125 Gbps transceiver lanes (XAUI). The device does not include a native 10GBASE-R (64B/66B) PHY; a separate SERDES IC is required for fiber or backplane interfaces. For native 10GE PHYs, consider the Stratix II GX or Stratix IV GX families.
What is the difference between Stratix GX and Stratix II GX?
Stratix GX (EP1SGX) is the first-generation transceiver-integrated FPGA with up to 20 channels at 3.1875 Gbps, while Stratix II GX (EP2SGX) doubles the transceiver rate to 6.375 Gbps, increases logic density, and adds a hard 8B/10B encoder with rate matching. They are not drop-in compatible because of different package ballouts, JTAG IDs, and configuration bitstreams. Migrating between them requires a new PCB layout.
Does the EP1SGX25DF800I6N support DDR-II memory interfaces?
Yes - the Stratix GX family includes dedicated hard controllers for DDR, DDR-II, QDR-II, and RLDRAM-II external memory. According to the Stratix GX datasheet, the device supports DDR-II at up to 300 MHz and QDR-II at up to 250 MHz data rates through dedicated SSTL-18 IOE circuitry. The -6 speed grade I6N variant is well-suited for DDR-II at full throughput.
What software toolchain is needed to program the EP1SGX25DF800I6N?
The EP1SGX25DF800I6N is programmed with Altera Quartus II version 6.0 through 7.2 (legacy versions), since later Quartus releases dropped Stratix GX support. Intel has migrated the design archive to the Quartus II subscription edition for legacy device support. Synopsys Synplify and Mentor Precision RTL synthesis tools also support this family. Altera recommends archiving the full design database to avoid future bitstream-generation issues.
What is the operating temperature range of EP1SGX25DF800I6N?
The I6N suffix indicates an industrial operating temperature range of -40C to +100C, which covers outdoor telecom cabinets, industrial chassis, and non-climate-controlled enclosures. The junction temperature limit is typically 125C. Designers should derate the transceiver data rate above 85C ambient to maintain BER < 10^-12 per the Stratix GX datasheet thermal derating curves.
What is the best cross-brand equivalent for EP1SGX25DF800I6N?
There is no true cross-brand pin-compatible equivalent for the EP1SGX25DF800I6N because the Stratix GX family uses Altera / Intel-proprietary hard IP and configuration bitstream format. The nearest functional alternatives in the same generation are Xilinx Virtex-II Pro and Virtex-4 FX with RocketIO transceivers, but they require a complete PCB re-layout and a different FPGA toolchain (ISE / Vivado). Plan a full re-design rather than a swap.

Engineering reference data for EP1SGX25DF800I6N — comparison, design guidance, and compliance information.

Selection Guide

Choose the EP1SGX25DF800I6N when your design needs the Stratix GX family at industrial temperature, -6 production speed, and the full 800-pin BGA pin count with up to 20 transceiver channels at 3.1875 Gbps. Pick EP1SGX25DF800C6N if the deployment is climate-controlled and you prefer the lower cost of the commercial temperature bin. Choose EP1SGX25DF800C5N when only a -5 speed is required and cost dominates. Move to EP1SGX25DF672C7N if you can fit your design into a 672-pin BGA with fewer user I/O and want a smaller footprint. If you need higher than 3.1875 Gbps per lane, migrate to Stratix II GX (EP2SGX) or Stratix IV GX (EP4SGX) - those require a full re-layout but provide 6.375 Gbps transceivers.

Comparison with Alternatives

Parameter This Product EP1SGX25DF800C6N EP1SGX25DF800C5N EP1SGX25DF672C7N EP1SGX25DF672I6N EP1SGX25CF672I6
Package FineLine BGA-800 (DF800) FineLine BGA-800 (DF800) FineLine BGA-800 (DF800) FineLine BGA-672 (DF672) FineLine BGA-672 (DF672) FineLine BGA-672 (CF672)
Brand Intel / Altera Intel / Altera Intel / Altera Intel / Altera Intel / Altera Intel / Altera
Temperature Range Industrial -40C to +100C Commercial 0C to +85C Commercial 0C to +85C Commercial 0C to +85C Industrial -40C to +100C Industrial -40C to +100C
Speed Grade -6 (production) -6 (production) -5 (slower) -7 (faster) -6 (production) -6 (production)
Family / Family Member Stratix GX EP1SGX25 Stratix GX EP1SGX25 Stratix GX EP1SGX25 Stratix GX EP1SGX25 Stratix GX EP1SGX25 Stratix GX EP1SGX25
Pin Count 800 800 800 672 672 672
Lifecycle Status (2026) Last-time-buy Last-time-buy Last-time-buy Last-time-buy Last-time-buy Last-time-buy
Transceiver Data Rate up to 3.1875 Gbps up to 3.1875 Gbps up to 3.1875 Gbps up to 3.1875 Gbps up to 3.1875 Gbps up to 3.1875 Gbps

Key Differentiators

  • Industrial temperature grade with -6 speed (vs EP1SGX25DF800C6N)
  • Faster speed grade with industrial temperature (vs EP1SGX25DF800C5N)
  • Larger 800-pin BGA footprint with full transceiver count (vs EP1SGX25DF672C7N)

Design Notes

Route all high-speed transceiver channels as 100 ohm differential pairs with controlled impedance. Use a stripline or microstrip stack-up with reference planes on adjacent layers; maintain 8x to 10x trace width to dielectric thickness for microstrip. The CDR performance depends on intra-pair skew below 5 ps, so use length matching within 0.5 mm across all TX/RX pairs. AC-couple the lines with 100 nF 0402 capacitors if the protocol requires it (PCIe, XAUI).

Place a 100 uF bulk tantalum plus 10 uF and 0.1 uF ceramic capacitors within 5 mm of each VCC/GND pin pair. The transceiver supply (VCCE_GXB) is sensitive to switching noise; isolate it from the logic supply with a ferrite bead and a dedicated regulator (Linear Technology LT1963-1.5 / equivalent). Insufficient decoupling is the #1 cause of marginal BER performance in production. Always verify VCCE_GXB ripple is below 50 mVpp at full data rate.

Do not exceed the Stratix GX maximum data rate of 3.1875 Gbps per channel - the -6 speed grade is the upper limit. Using 'fastest' prototype settings in Quartus can lead to non-deterministic bit errors in production. When migrating between EP1SGX25 DF800 and DF672 packages, the bitstream is identical but the configuration pin assignments and JTAG ID differ. Re-generate the SOF/POF file after each package change.

The 800-pin FineLine BGA has a thermal resistance of approximately 0.6 C/W junction-to-case with proper thermal via array. Use 4 thermal vias per pad array under the die footprint, connecting the BGA thermal pad to the inner ground plane. With a 30 W typical Stratix GX power dissipation, expect 18C junction rise above case temperature - well within the 100C industrial limit.

Compliance Information

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

RoHS / lead-free per Altera product markings (Pb-free BGA finish). Reach compliance and conflict-minerals statement per Intel Product Change Notification archive. AEC-Q100 is not applicable - this is a logic IC for telecom and industrial. Halogen-free status [DATA_NEEDED].

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 EP1SGX25 EP1SGX25DF800I6N EP1SGX25DF800C6N EP1SGX25DF800C5N EP1SGX25DF672C7N EP1SGX25DF672I6N EP1SGX25CF672I6 Stratix GX FPGA Field-Programmable Gate Array transceiver SERDES clock-data recovery 8B/10B encoding FineLine BGA PCI Express XAUI 10 Gigabit Ethernet SONET SDH TriMatrix memory DSP block Quartus II RoHS AEC-Q100 industrial temperature range last-time-buy
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