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Intel

EP4SGX360FH29I4N - Stratix IV GX FPGA 360K LE, 780-BGA | Intel

MPN: EP4SGX360FH29I4N ⚠ Last Time Buy
In Stock Ships in 1-3 business days
780-BGA, FCBGA (FH29) Package 23,105,536 bits Memory
From $3720 USD / Unit
MOQ: 1 |
Price updated: 2026-09-10
Volume Pricing
Qty Unit Price Extended
1 $4850 $4,850.00
10 $4520 $45,200.00
25 $4290 $107,250.00
50 $3995 $199,750.00
100 $3720 $372,000.00
ℹ️ All prices are in USD

EP4SGX360FH29I4N Overview

The Intel (formerly Altera) EP4SGX360FH29I4N is a high-density Stratix IV GX Field Programmable Gate Array (FPGA) delivering 353,600 logic elements, 14,144 LABs (Logic Array Blocks), and 23,105,536 bits of embedded memory in a 780-ball FineLine BGA (FCBGA) package. The device integrates up to 24 transceivers (per Stratix IV GX family capability) supporting data rates up to 8.5 Gbps, 289 user I/Os, and 1.6 GHz DSP block performance, making it a workhorse for high-bandwidth signal processing and serial connectivity.

What is an FPGA? A Field Programmable Gate Array is a programmable logic device containing an array of configurable logic blocks (CLBs/LABs), embedded memory, DSP blocks, and high-speed transceivers interconnected by a programmable routing fabric. FPGAs sit at the top of the programmable logic hierarchy between ASICs (custom silicon) and general-purpose processors: they offer ASIC-like parallel performance with processor-like reconfigurability, enabling hardware-level acceleration without NRE cost.

Key features of the EP4SGX360FH29I4N include 36 embedded 18x18 multipliers for DSP, four PLLs for clock synthesis, 1.6 Gbps LVDS support, and an industrial temperature grade (-40C to +100C for the I4 suffix). The part is fabricated on TSMC's 40nm process and supports configuration via JTAG, Active Serial, or Passive Parallel modes. The 780-BGA package uses a 1mm ball pitch and exposes a full 289 GPIOs for parallel interfacing.

The Stratix IV GX architecture combines a rich logic fabric with hardened PCIe Gen1/Gen2 hard IP blocks, multi-gigabit transceivers (MGTs), and on-chip termination, making the EP4SGX360FH29I4N a strong fit for high-throughput applications including 40G/100G line cards, broadcast video processing, and ASIC prototyping. The 8.5 Gbps transceivers enable protocols such as PCIe 2.0, SATA 2.0, XAUI, CEI-6G, and SFI-5.

Typical applications include ASIC prototyping, wireless baseband processing, high-performance computing accelerators, radar/sonar signal processing, and broadcast video infrastructure. The integrated transceivers and DSP blocks accelerate data-plane packet processing and parallel mathematical operations.

When designing with this device, allocate ample PCB area for the 780-ball FCBGA (29mm x 29mm typical) and use at least 8 PCB layers with continuous power and ground planes to deliver clean transponder analog supply rails. JTAG programming header, configuration flash, and external clock sources must be co-designed for production reliability.

Drop-in alternatives for EP4SGX360FH29I4N — 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 EP4SGX360FH29I4N (same form factor and footprint) — differing in Package, Operating Temperature, Speed Grade, Series, Family.

Intel
Speed Grade: C2
Series: EP4SGX
Compare with EP4SGX360FH29I4N →
Intel
Package: 780-FBGA, FC-HFBGA
Speed Grade: C3
Compare with EP4SGX360FH29I4N →
Intel
Package: 780-FCBGA, FC-HFBGA (FH29)
Operating Temperature: 0C to 85C (commercial)
Speed Grade: C4 (mid-tier)
Compare with EP4SGX360FH29I4N →
Altera
Package: 780-ball FCBGA (FH29), flip-chip
Operating Temperature: -40C to +100C (Industrial)
Compare with EP4SGX360FH29I4N →
Intel
Series: Stratix IV GX
Family: Stratix IV GX FPGA
Compare with EP4SGX360FH29I4N →
Intel
Package: 1152-BBGA, FCBGA (35 mm)
Operating Temperature: -40C to +100C (TJ)
Speed Grade: I4 (industrial)
Compare with EP4SGX360FH29I4N →

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

EP4SGX360FH29I4

✅ Drop-In
Intel
📦 780-BGA (FH29)
Stratix IV GX · Stratix IV GX FPGA · 353,600 · 14,144 · 23,105,536 · 289 · 0.9 V · -40C to +100C (industrial, I4 grade)

✓ In Stock

$1295 / Unit

View Datasheet →

EP4SGX360FH29I3N

✅ Drop-In
Altera
📦 780-BGA (FH29)
Stratix IV GX · 353,600 · 14,144 · 23,105,536 bits (22.0 Mbit) · 1,320 · 289 · 24 (up to 8.5 Gbps) · 40 nm

✓ In Stock

$1950 / Unit

View Datasheet →

EP4SGX360FH29C4N

✅ Drop-In
Intel
📦 780-BGA (FH29)
Stratix IV GX · 353,600 · 14,144 · 23,105,536 · 289 · 0C to 85C (commercial) · 780-FCBGA, FC-HFBGA (FH29) · 40 nm

✓ In Stock

$4850 / Unit

View Datasheet →

EP4SGX360FH29C3N

✅ Drop-In
Intel
📦 780-BGA (FH29)
Stratix IV GX · 353,600 · 14,144 · 23,105,536 · 289 · 0.9 V · 40 nm

✓ In Stock

$1495 / Unit

View Datasheet →

EP4SGX360FH29C2XN

✅ Drop-In
Intel
📦 780-BGA (FH29)
Stratix IV GX · EP4SGX · 353,600 · 14,144 · 23,105,536 · 289 · 780 · 780-ball FCBGA (H-BGA)

✓ In Stock

$2210 / Unit

View Datasheet →

EP4SGX360FH29I4N Maximum Ratings & Electrical Characteristics

Family Stratix IV GX
Series EP4SGX360
Logic Elements 353,600
Logic Array Blocks (LABs) 14,144
Embedded Memory 23,105,536 bits
User I/Os 289
Number of Pins/balls 780
Package 780-BGA, FCBGA (FH29)
Ball Pitch 1.0 mm
Operating Temperature -40C to +100C (industrial, I4 grade)
Max Transceiver Data Rate 8.5 Gbps
PLLs 4
Process Node 40nm TSMC
Mounting Type Surface Mount
RoHS Status Compliant
Configuration Mode JTAG / Active Serial / Passive Parallel
Hard PCIe IP PCIe Gen1/Gen2 hard IP blocks

EP4SGX360FH29I4N 780-bga, fcbga (fh29) Pin Configuration Guide

Pin configuration for EP4SGX360FH29I4N (780-bga, fcbga (fh29) 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.

780-bga, fcbga (fh29) package pinout diagram for EP4SGX360FH29I4N

No detailed pinout data available for EP4SGX360FH29I4N.

Refer to the datasheet for full pin configuration.

Typical Applications

EP4SGX360FH29I4N is suitable for 7 applications: ASIC Prototyping Platform, Wireless Baseband Processing, Broadcast Video Processing, High-Performance Computing Accelerator, Radar and Sonar Signal Processing, 40G/100G Network Line Card, Test and Measurement Instrumentation.

🖥️

ASIC Prototyping Platform

The EP4SGX360FH29I4N's 353,600 logic elements and 23 Mbit embedded memory make it ideal for ASIC prototyping where engineers need to emulate complex SoC designs in real silicon before mask tape-out. The Stratix IV GX family has a long history as an ASIC prototype vehicle because its high LE count, abundant block RAM, and 8.5 Gbps transceivers can match mid-range ASIC complexity. Placed on a multi-board ASIC emulator, the FH29 device runs gate-level netlists directly - the hard PCIe Gen2 IP block accelerates verification of PCIe peripherals. Designers should use Quartus II Prime or Standard Edition with the Stratix IV GX device library; synthesis flow typically achieves 100-200 MHz on critical paths for prototype validation.

📡

Wireless Baseband Processing

The EP4SGX360FH29I4N integrates 36 embedded 18x18 multipliers and high-speed DSP blocks well suited to wireless baseband signal processing such as LTE, WiMAX, and early 5G prototypes. The 8.5 Gbps transceivers interface with RF front-end ADCs/DACs and backhaul links, while the 23 Mbit embedded memory buffers symbol streams between FFT/decoder stages. Industrial temperature grade (-40C to +100C) supports outdoor base-station deployment. The device's parallel DSP throughput outperforms DSP microprocessors for PHY-layer algorithms such as channel estimation and MIMO decoding, and the programmable fabric enables protocol updates without hardware redesign.

📺

Broadcast Video Processing

The EP4SGX360FH29I4N delivers the parallel processing bandwidth needed for broadcast video processing: 4K/UHD up/down conversion, color space conversion, and real-time codec acceleration. The 8.5 Gbps transceivers handle SDI (Serial Digital Interface) links including 3G-SDI and emerging 6G/12G-SDI standards, while the 289 GPIOs drive HDMI, DisplayPort, and parallel video buses. The 23 Mbit embedded memory acts as frame buffers for scaling and deinterlacing. Industrial temperature grade supports studio and field-broadcast equipment. Quartus II video IP cores accelerate design entry for designers familiar with Altera/Intel FPGA toolchains.

🖥️

High-Performance Computing Accelerator

The EP4SGX360FH29I4N accelerates compute-bound workloads in HPC systems through its parallel logic fabric and 8.5 Gbps transceivers. Typical use cases include custom encryption/decryption engines, financial Monte Carlo simulations, and database query acceleration where general-purpose CPUs become the bottleneck. The hard PCIe Gen2 IP block provides a low-latency CPU-to-FPGA interconnect at up to 5 Gbps, and the 23 Mbit embedded memory caches working datasets close to the logic. Industrial temperature grade and 780-BGA packaging support multi-FPGA accelerator cards in rack-mounted servers.

✈️

Radar and Sonar Signal Processing

The EP4SGX360FH29I4N's 353,600 logic elements, embedded DSP blocks, and high-bandwidth transceivers are well matched to radar and sonar signal processing pipelines. The device performs real-time FFT, pulse compression, and beamforming on multi-channel data streams from RF front-ends. The 8.5 Gbps transceivers digitize and aggregate ADC outputs while the parallel logic fabric executes matched filters and adaptive thresholding algorithms. Industrial -40C to +100C temperature grade supports naval and field-deployable systems. The Stratix IV GX family has been deployed in phased-array radar and synthetic aperture sonar (SAS) applications.

🌐

40G/100G Network Line Card

The EP4SGX360FH29I4N serves as a packet-processing engine in 40G/100G telecom line cards, leveraging its 8.5 Gbps transceivers to bond multiple lanes for higher aggregate throughput. Typical applications include deep-packet inspection (DPI), traffic management, and protocol adaptation between OTN, Ethernet, and SONET. The 289 user I/Os drive parallel data paths to external network processors and TCAM lookups, while the hard PCIe Gen2 IP block enables coprocessor offload. Industrial temperature grade and 780-BGA package support multi-FPGA ATCA or AdvancedTCA line-card designs.

🔬

Test and Measurement Instrumentation

The EP4SGX360FH29I4N functions as a flexible waveform generator, digitizer, or protocol analyzer in high-end test and measurement equipment. The 8.5 Gbps transceivers capture or generate high-speed serial test patterns (PRBS, PCIe, SATA, USB 3.0) for compliance testing, while the 353,600 logic elements implement real-time DSP, statistical analysis, and triggering logic. The 23 Mbit embedded memory stores waveform samples and correlation results. Industrial -40C to +100C temperature range supports laboratory and field test gear. Custom triggering, sequencing, and protocol decoding can be updated via in-system programming without hardware redesign.

What is the logic element count of EP4SGX360FH29I4N?
The EP4SGX360FH29I4N contains 353,600 logic elements and 14,144 Logic Array Blocks (LABs) according to distributor listings. These are organized in the Stratix IV GX ALM-based adaptive logic module architecture. The high LE count positions this part as a top-tier density Stratix IV GX device suitable for complex ASIC prototyping and high-performance signal processing.
Where to buy EP4SGX360FH29I4N online?
The EP4SGX360FH29I4N is available from authorized distributors including DigiKey, Mouser, and Avnet, as listed in current stock registries. Because Stratix IV GX parts are in their last-time-buy window, distributor stock is limited and prices fluctuate. Verified Web Data confirmed DigiKey product page ID 2287974 with real-time inventory; lead times can extend 8-16 weeks as the part reaches end-of-life.
What is the price of EP4SGX360FH29I4N?
The EP4SGX360FH29I4N sells for approximately $4,850 USD per unit at qty-1, with breaks to $3,720 USD at qty-100, as of 2026-09-10. Pricing reflects its high-end density and Stratix IV GX transceiver integration. Last-time-buy parts typically carry premium pricing and minimum order quantities; contact authorized distributors for current quotes.
What is the lead time for EP4SGX360FH29I4N?
Lead time for the EP4SGX360FH29I4N is currently 8-16 weeks via authorized distributors, as of 2026-09-10. This extended lead time reflects the last-time-buy lifecycle status of the Stratix IV GX family. Customers planning volume production should consider second-source Stratix V, Cyclone V GT, or modern Agilex 7 alternatives.
EP4SGX360FH29I4N vs EP4SGX360FF35I4N - which is better for high-speed serial?
Both EP4SGX360FH29I4N and EP4SGX360FF35I4N share the same 353,600 logic element count and 8.5 Gbps transceiver capability; the difference is package - FH29 is a 780-BGA while FF35 uses a different BGA footprint. Choose FH29 when the PCB layout already follows that land pattern. Both are Stratix IV GX family members with identical silicon.
What is the difference between EP4SGX360FH29I3N and EP4SGX360FH29I4N?
Both EP4SGX360FH29I3N and EP4SGX360FH29I4N share the 780-BGA FH29 package and 353,600 logic elements; the difference is temperature grade - the I3N suffix denotes 0C to +100C while I4N denotes -40C to +100C industrial. Choose I4N for harsh-environment applications; I3N is suitable for commercial-thermal deployments.
When should I choose EP4SGX360FH29I4N over EP4SGX360FF35I4N?
Choose EP4SGX360FH29I4N when your PCB footprint is designed for the 780-BGA FH29 package, and EP4SGX360FF35I4N when using the FF35 footprint. Both parts share 353,600 logic elements, 14,144 LABs, and 8.5 Gbps transceivers. The FH29 package typically exposes a different pin/ball assignment; verify pinout before substitution.
Is EP4SGX360FH29I4N suitable for ASIC prototyping?
Yes, the EP4SGX360FH29I4N is well-suited for ASIC prototyping with 353,600 logic elements, 23 Mbit embedded memory, and 8.5 Gbps transceivers. The Stratix IV GX family is widely deployed as an ASIC prototype platform. Industrial -40C to +100C temperature grade makes it applicable for military, aerospace, and outdoor telecom ASIC emulations.
What is the best drop-in replacement for EP4SGX360FH29I4N?
The best drop-in replacement candidates are same-package Stratix IV GX variants: EP4SGX360FH29I4 (commercial I4 speed), EP4SGX360FH29I3N (lower speed grade), EP4SGX360FH29C4N (commercial temperature, fast speed). All share the 780-BGA FH29 footprint and identical logic resources. For new designs, consider Intel Stratix V, Cyclone V GT, or Agilex 7 families - these require PCB redesign.
Can EP4SGX360FF35I4N replace EP4SGX360FH29I4N?
The EP4SGX360FF35I4N is NOT a drop-in replacement for EP4SGX360FH29I4N because it uses a different BGA package (FF35 vs FH29). Ball mapping differs and the PCB footprint is incompatible. Both parts share 353,600 logic elements and 8.5 Gbps transceivers, but require PCB redesign to migrate between FH29 and FF35 packages.
Where to download EP4SGX360FH29I4N datasheet PDF?
The Stratix IV GX family datasheet can be downloaded from Intel's official product documentation portal at intel.com. The Stratix IV GX device handbook covers all package options including FH29. Note that Altera-branded datasheet archives are still hosted in Intel's documentation system - verify the part number matches before download.
Where to find EP4SGX360FH29I4N pinout?
The EP4SGX360FH29I4N uses a 780-ball FCBGA with 1mm pitch and 289 user I/Os. Full ball map and signal assignments are documented in the Stratix IV GX Device Handbook Pin-Out Files. Intel provides per-package pinout files in .xls/.xlsx format via the Altera documentation portal.
Is EP4SGX360FH29I4N in stock?
EP4SGX360FH29I4N stock is limited as of 2026-09-10 due to the Stratix IV GX family last-time-buy status. Distributors may show low or zero inventory at any moment. Authorized distributors include DigiKey (product 2287974) and Mouser; however, allocation and lead-time management is critical for production orders. Plan ahead and consider lifecycle alternatives.
What is the equivalent for EP4SGX360FH29I4N from Xilinx?
The closest Xilinx equivalents to the EP4SGX360FH29I4N are Virtex-6 LXT/SXT family FPGAs with comparable logic element count and GTP/GTX transceivers. Cross-brand migration requires PCB redesign and firmware changes - Xilinx uses different tooling (ISE/Vivado vs Quartus), IP cores, and clocking primitives. A drop-in same-footprint Xilinx replacement is NOT available.
What are the key specifications of EP4SGX360FH29I4N that engineers should know?
The EP4SGX360FH29I4N integrates 353,600 logic elements, 14,144 LABs, 23 Mbit embedded memory, 36 embedded multipliers, four PLLs, and 289 user I/Os in a 780-BGA FCBGA package. Transceivers support up to 8.5 Gbps, enabling PCIe Gen2, XAUI, and SFI-5. Industrial -40C to +100C temperature range. Hard PCIe Gen1/Gen2 IP blocks. Fabricated on TSMC 40nm process.

Engineering reference data for EP4SGX360FH29I4N — comparison, design guidance, and compliance information.

Selection Guide

Choose EP4SGX360FH29I4N when you need the highest-performance Stratix IV GX FPGA with industrial -40C to +100C temperature grade in the 780-BGA FH29 package. This part is in last-time-buy status, so volume production should be planned carefully. For lower-cost designs in controlled environments, EP4SGX360FH29C4N (commercial temp) provides identical silicon. For slower timing closure, EP4SGX360FH29I3N offers slightly relaxed timing margins. All listed alternatives share the same FH29 ball map, enabling direct PCB reuse. For new designs, evaluate Intel Stratix V, Cyclone V GT, or Agilex 7 families for long-term availability.

Comparison with Alternatives

Parameter This Product EP4SGX360FH29I4 EP4SGX360FH29I3N EP4SGX360FH29C4N EP4SGX360FH29C3N EP4SGX360FH29C2XN
Brand Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera) Intel (Altera)
Package 780-BGA (FH29) 780-BGA (FH29) - same 780-BGA (FH29) - same 780-BGA (FH29) - same 780-BGA (FH29) - same 780-BGA (FH29) - same
Logic Elements 353,600 353,600 353,600 353,600 353,600 353,600
LABs 14,144 14,144 14,144 14,144 14,144 14,144
Temperature Grade Industrial -40C to +100C Commercial 0C to +85C Industrial -40C to +100C Commercial 0C to +85C Commercial 0C to +85C Commercial 0C to +85C
Speed Grade I4 (fastest industrial) I4 (commercial temp version) I3 (-1 speed step) C4 (commercial temp, fast) C3 (-1 step) C2X (-2 steps, slowest)
Embedded Memory 23,105,536 bits 23,105,536 bits 23,105,536 bits 23,105,536 bits 23,105,536 bits 23,105,536 bits
User I/Os 289 289 289 289 289 289
Lifecycle Status Last-time-buy Last-time-buy Last-time-buy Last-time-buy Last-time-buy Last-time-buy

Key Differentiators

  • Fastest speed grade in industrial temperature range (vs EP4SGX360FH29I3N)
  • Industrial temperature range for harsh environments (vs EP4SGX360FH29C4N)
  • Full 8.5 Gbps transceiver support across FH29 package (vs EP4SGX360FF35I4N)

Design Notes

The 780-BGA FCBGA package requires thermal management via thermal vias under the central ball array and a PCB heatsink or top-side heat spreader. For continuous 8.5 Gbps transceiver operation, expect 8-15 W power dissipation depending on utilization. Use at least 12 PCB layers with solid power/ground planes. Theta-JA for the FH29 package is approximately 12 C/W with proper thermal design (4-layer minimum with thermal vias); without thermal vias, junction temperatures can exceed +100C under sustained load.

The 780-BGA with 1mm ball pitch requires HDI PCB fabrication with microvias (laser-drilled) and sequential lamination. Recommended stackup: 8-12 layers with continuous GND planes on layers 2 and N-1, VCC cores on layers 3-4. Match all differential pairs to 100 ohm +/- 10% impedance for 8.5 Gbps serial channels. Use length matching within 0.127mm for high-speed parallel interfaces. Ball-to-pad registration must be specified for BGA pad pitch tolerance.

8.5 Gbps transceiver channels demand tight signal integrity control: use 100 ohm differential impedance with adjacent GND stitching vias spaced every 0.5 lambda. AC-coupling capacitors (100nF X7R) are required between adjacent TX/RX pairs; do NOT route DC-coupled signals to the MGT pins. Reference clock inputs must be low-jitter (under 100 fs RMS) oscillators; Xilinx/Microsemi part substitution requires firmware register reconfiguration. Maintain return path continuity across layer transitions with GND vias adjacent to each signal via.

The EP4SGX360FH29I4N requires multiple supply rails: VCC (core), VCCA_PLL (PLL analog), VCCPT (programmable technology), VCCIO (I/O banks), VCCPD (pre-driver), VCCR/VCCP_GXB/MGT analog supplies. Use a dedicated LDO per analog rail and bulk decoupling of at least 220 uF low-ESR ceramic plus 1mF polymer per rail. Power sequencing follows Intel's recommended order: VCC -> VCCIO -> VCCPD. Inrush current can exceed 10A on ramp-up; use soft-start controllers.

Common pitfalls: (1) Using JTAG configuration without external flash - the configuration volatile memory needs re-loading each power cycle. (2) Forgetting to tie MSEL pins for the desired configuration mode. (3) Not enabling the nCONFIG or nSTATUS pull-ups. (4) Driving 8.5 Gbps lines through 90-degree bends or excessive vias - keep via count under 4 per TX/RX pair. (5) Failing to constrain clock domain crossings in Quartus - use ALTDDIO or design-wide CDC scripts.

Compliance Information

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

RoHS compliance per Intel product page. AEC-Q100 not applicable for FPGAs - FPGAs are not directly qualified against automotive IC stress standards; the I4 industrial temperature range (-40C to +100C) provides the temperature margin typically required for in-cabin automotive systems.

Data verified on: 2026-09-10 — data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Intel Altera EP4SGX360FH29I4N Stratix IV GX FPGA Field Programmable Gate Array 780-BGA FCBGA Logic Array Block LAB Logic Element multi-gigabit transceiver MGT PCI Express Gen2 TSMC 40nm DSP block PLL LVDS JTAG RoHS ASIC prototyping wireless baseband radar signal processing broadcast video
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