Altera

EP4SGX530KH40I4 - 531K LE Stratix IV GX FPGA, 744 I/O, FCBGA-1517 | Altera

MPN: EP4SGX530KH40I4 ✗ End of Life
In Stock Ships in 1-3 business days
0.9 V Vdss 1517-BBGA, FCBGA (HBGA) Package I4 Speed 28,033,024 Memory
From $3050 USD / Unit
MOQ: 1 |
Price updated: 2026-09-10
Volume Pricing
Qty Unit Price Extended
1 $4800 $4,800.00
10 $4250 $42,500.00
100 $3850 $385,000.00
500 $3400 $1,700,000.00
1,000 $3050 $3,050,000.00
ℹ️ All prices are in USD

EP4SGX530KH40I4 Overview

The Altera (Intel) EP4SGX530KH40I4 is a high-density Stratix IV GX family FPGA with 531,200 logic elements, 28,033,024 bits of embedded RAM, 21,248 LABs/CLBs, and 744 programmable I/O pins in a 1517-ball flip-chip BGA (FCBGA / HBGA) package. It is fabricated on a 40 nm process and targets high-performance, transceiver-rich designs in communications, signal processing, and ASIC prototyping.

An FPGA (Field Programmable Gate Array) is a reprogrammable semiconductor device whose logic fabric, routing, and I/O can be configured in-system via an SRAM-based configuration bitstream. FPGAs sit within the programmable logic sub-hierarchy of the broader digital semiconductor taxonomy: FPGA -> programmable logic -> logic IC -> integrated circuit. The Stratix IV GX family specifically integrates multi-gigabit transceivers with a programmable logic fabric, making it suitable for high-speed serial interfaces such as PCIe Gen1/Gen2, Serial RapidIO, XAUI, CEI-6G, and CPRI/OBSAI.

Key features of the EP4SGX530KH40I4 include a 0.9 V core supply, integrated transceivers capable of up to 8.5 Gbps data rates, dedicated hard memory controllers, and DSP blocks supporting high-throughput fixed- and floating-point arithmetic. The device supports both internal and external memory interfaces including DDR3, DDR2, RLDRAM II, and QDR II+. Security features include bitstream encryption with AES and 256-bit keys, JTAG-based configuration, and design security via tamper detection.

The architectural style combines a logic array block (LAB) fabric with embedded transceivers, MLABs, M9K/M144K block RAM, DSP slices, and a global clock network. The integrated hard PCIe Gen2 IP cores simplify endpoint and root complex designs, while the FPGA fabric can host custom soft cores such as Nios II processors for control plane tasks.

Typical applications include high-end wireless baseband processing, defense radar and electronic-warfare front ends, high-frequency trading platforms, 100G/40G network line cards, ASIC prototyping, and broadcast video infrastructure. The combination of high logic density and 8.5 Gbps transceivers makes it well suited to wireline backhaul, optical transport, and test & measurement systems.

When designing with this FPGA, ensure a multi-rail power architecture (typically 0.9 V core, 2.5 V/3.3 V I/O and aux) using a power sequencer with monotonic ramp and proper monotonic power-good handshake. Place transceiver power filtering ferrite beads and decoupling capacitors exactly per the Altera pin connection guidelines to meet jitter and EMI compliance.

Drop-in alternatives for EP4SGX530KH40I4 — 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 EP4SGX530KH40I4 (same form factor and footprint) — differing in Package, Operating Temperature, Mounting Type, Process Technology, Transceivers.

Intel
Operating Temperature: 0 C to +85 C (commercial)
Process Technology: 40 nm CMOS
Compare with EP4SGX530KH40I4 →
Intel
Package: 1517-ball FCBGA (KH40)
Operating Temperature: -40C to +100C (industrial)
Mounting Type: Surface Mount (flip-chip BGA)
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Intel
Package: 1517-BBGA, FCBGA
Mounting Type: Surface Mount (BGA)
Transceivers: Up to 48 channels
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Intel
Package: 1517-ball FC-HFBGA (KH40)
Mounting Type: Surface Mount (BGA)
Compare with EP4SGX530KH40I4 →
Intel
Package: 1517-BBGA / FCBGA (42.5 x 42.5 mm)
Operating Temperature: 0 °C to 85 °C (Commercial)
Mounting Type: Surface Mount (BGA)
Compare with EP4SGX530KH40I4 →
Intel
Package: 1517-ball FCBGA (HBGA), 42.5 x 42.5 mm
Operating Temperature: 0 C to 85 C (Commercial)
Transceivers: 24 channels
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Intel
Package: 1517-BBGA, FCBGA (FC-HFBGA), 40x40 mm
Mounting Type: Surface Mount (Flip-Chip BGA)
Process Technology: TSMC 40 nm
Compare with EP4SGX530KH40I4 →
Intel
Operating Temperature: 0C to +85C (Industrial)
Mounting Type: Surface Mount (BGA)
Compare with EP4SGX530KH40I4 →
Intel
Package: 1517-ball FC-HFBGA (Flip-Chip Fine-Pitch BGA)
Operating Temperature: -40 °C to +100 °C (industrial)
Mounting Type: Surface Mount (BGA, requires microvia PCB)
Compare with EP4SGX530KH40I4 →

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

EP4SGX530KH40C4N

✅ Drop-In
Intel
📦 1517-BBGA, FCBGA
Stratix IV GX · 531,200 · 21,248 · 27,480 Kbits · 744 · 24 channels · 8.5 Gbps · 1,288

✓ In Stock

$3680 / Unit

View Datasheet →

EP4SGX530KH40I3

✅ Drop-In
Intel
📦 1517-BBGA, FCBGA
Stratix IV GX · Intel (formerly Altera) · TSMC 40 nm · 531,200 · 28,033,024 bits (28 Mb) · 21,248

✓ In Stock

$12500 / Unit

View Datasheet →

EP4SGX530KH40I3N

✅ Drop-In
Intel
📦 1517-BBGA, FCBGA
FPGA - Stratix IV GX · Stratix IV GX · Intel (formerly Altera) · 531200 · 21248 · 744 · 1517-BBGA / FCBGA, 42.50 x 42.50 mm · 40 nm

✓ In Stock

$6250 / Unit

View Datasheet →

EP4SGX530KH40C4

✅ Drop-In
Intel
📦 1517-BBGA, FCBGA
Stratix IV GX · 531,200 · 21,248 · 744 · 28,033,024 bits (28 Mb) · 48 (per device) · 8.5 Gbps · 40 nm TSMC

✓ In Stock

$815 / Unit

View Datasheet →

EP4SGX530KH40C3N

✅ Drop-In
Intel
📦 1517-BBGA, FCBGA
Stratix IV GX · 531200 · 21248 · 28033024 (28 Mb) · 744 · 24 (up to 8.5 Gbps) · 1288 · 40 nm

✓ In Stock

$3420 / Unit

View Datasheet →

EP4SGX530KH40C3

✅ Drop-In
Intel
📦 1517-BBGA, FCBGA
Stratix IV GX · 531,200 · 212,480 · 28,033,024 · 28,033,024 / 8 ≈ 3,504 KBytes · 744 · Up to 48 channels · Up to 8.5 Gbps

✓ In Stock

$8650 / Unit

View Datasheet →

EP4SGX530KH40C2N

✅ Drop-In
Intel
📦 1517-BBGA, FCBGA
Stratix IV GX · 531,200 · 21,248 · 28,033,024 · 212,480 · 24 · 1,024 · 744

✓ In Stock

$3700 / Unit

View Datasheet →

EP4SGX530KH40C2

✅ Drop-In
Intel
📦 1517-BBGA, FCBGA
Stratix IV GX · FPGA - Field Programmable Gate Array · 531,200 · 21,248 · 28,033,024 · 744 · 48 channels · Up to 8.5 Gbps per channel

✓ In Stock

$2150 / Unit

View Datasheet →

EP4SGX530KH40I4 Maximum Ratings & Electrical Characteristics

Family Stratix IV GX
Logic Elements 531,200
LABs / CLBs 21,248
Embedded Memory Bits 28,033,024
Process Technology 40 nm
Core Voltage 0.9 V
Programmable I/O Pins 744
Maximum Transceiver Data Rate 8.5 Gbps
Package 1517-BBGA, FCBGA (HBGA)
Mounting Type Surface Mount
Operating Temperature Grade Industrial (-40C to +100C)
Speed Grade I4
Number of GPIO 744
Configuration Memory Type SRAM (volatile, requires external flash)

EP4SGX530KH40I4 1517-bbga, fcbga (hbga) Pin Configuration Guide

Pin configuration for EP4SGX530KH40I4 (1517-bbga, fcbga (hbga) 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.

1517-bbga, fcbga (hbga) package pinout diagram for EP4SGX530KH40I4

No detailed pinout data available for EP4SGX530KH40I4.

Refer to the datasheet for full pin configuration.

Typical Applications

EP4SGX530KH40I4 is suitable for 7 applications: Wireless Baseband Processing, 100G/40G Network Line Cards, Defense Radar and EW Front Ends, High-Frequency Trading Platforms, ASIC Prototyping Platforms, Broadcast Video Infrastructure, Test & Measurement Equipment.

🌐

Wireless Baseband Processing

The EP4SGX530KH40I4 is well matched to high-end wireless baseband designs that demand both massive logic density and multi-gigabit transceivers. With 531,200 logic elements, 28 Mbit of embedded block RAM, and 8.5 Gbps Stratix IV GX transceivers, the device can host multi-antenna LTE/5G NR PHY stacks, channel cards, and MAC schedulers on a single die. Its 40 nm process and 0.9 V core keep dynamic power manageable at high utilization, while 744 programmable I/Os expose enough lanes for CPRI/OBSAI fronthaul plus parallel antenna data. The integrated hard memory controllers simplify DDR3 interfacing for HARQ buffers and deinterleaver memory, and the I4 industrial temperature grade supports outdoor base-station thermal envelopes.

🌐

100G/40G Network Line Cards

Stratix IV GX devices like the EP4SGX530KH40I4 are commonly deployed in 40G and 100G Ethernet line cards where their 8.5 Gbps transceivers drive OTU3/OTU4 optical modules through XLAUI/CAUI interfaces. The 531K logic-element fabric supports packet processing pipelines, traffic management, and deep lookups, while 28 Mbit of block RAM feeds statistics counters and on-chip packet buffers. Engineers use the I4 industrial grade to cover operator-environment thermal ranges, and the FPGA's 744 I/Os sustain multi-lane MAC-plus-PHY architectures plus high-speed backplane SERDES. The device's hard PCIe Gen2 endpoints also let it pair with a host CPU for control-plane offload.

✈️

Defense Radar and EW Front Ends

The EP4SGX530KH40I4 is used in defense radar and electronic-warfare systems where 40 nm fabric density, industrial temperature grade, and the 8.5 Gbps transceiver count support phased-array beamforming, wideband digitization, and high-throughput signal processing. Designers exploit the 28 Mbit of embedded RAM for windowing and FFT twiddle storage, while the 531K logic elements deliver massive DSP throughput for pulse compression and digital beam steering. The KH40 1517-ball FCBGA package accommodates the full transceiver complement needed for multiple antenna channels, and Altera's AES bitstream encryption supports secure-by-design deployments required by defense customers.

💡

High-Frequency Trading Platforms

Low-latency trading platforms rely on Stratix IV GX devices such as the EP4SGX530KH40I4 for FPGA-accelerated market-data parsing, order-book processing, and risk-check offload. The 8.5 Gbps transceivers move raw market-data feeds (ITCH/OUCH) directly into the FPGA fabric with nanosecond-scale deterministic latency, while the 531K logic elements and 28 Mbit block RAM provide on-chip buffer space for tap-and-book state. The I4 industrial speed grade maximizes Fmax for critical path timing closure, and the 744 I/Os let the design simultaneously drive PCIe Gen2 host links, multiple SFP+ ports, and external TCAM/SRAM search accelerators for tick-to-trade latency budgets in the single-digit microsecond range.

🖥️

ASIC Prototyping Platforms

The EP4SGX530KH40I4 is well suited to ASIC prototyping thanks to its 531,200 logic elements, abundant block RAM (28 Mbit), 744 I/Os, and Stratix IV GX transceivers that emulate common ASIC I/O standards such as XAUI, PCIe, and Serial RapidIO. Design teams map multiple ASIC partitions to one or more Stratix IV GX devices, using the KH40 1517-ball FCBGA package's high ball count to break out ASIC I/O between FPGAs. The industrial I4 speed grade helps timing closure on aggressive ASIC clocks, and Quartus' TimeQuest timing analyzer plus board-level partitioning scripts make the part a staple of multi-FPGA prototype boards sold by partners like Synopsys, S2C, and Pro Design.

📺

Broadcast Video Infrastructure

Broadcast video routers, contribution encoders, and playout servers often deploy Stratix IV GX FPGAs like the EP4SGX530KH40I4 to process uncompressed SDI/HD-SDI/3G-SDI streams and to bridge to IP-based SMPTE ST 2022-6/2110 networks. The 8.5 Gbps transceivers aggregate multiple SDI streams or drive 10G Ethernet SFP+ uplinks for IP-based transport, while the 531K logic elements and 28 Mbit block RAM host multi-stream audio/video processing, color-space conversion, and on-screen graphics overlays. The 744 I/Os expose parallel SDI GPIO plus external memory bus interfaces, and the I4 industrial temperature grade meets the thermal envelopes of equipment-room and outdoor broadcast enclosures.

🔧

Test & Measurement Equipment

High-end oscilloscopes, protocol analyzers, and bit-error-rate testers use Stratix IV GX FPGAs like the EP4SGX530KH40I4 to capture and pattern-generate multi-gigabit signals under test. The 8.5 Gbps transceivers handle PCIe, SATA, USB 3.0, and Serial RapidIO physical-layer generation, while 531K logic elements implement protocol-aware state machines, statistics engines, and triggering logic. The 28 Mbit embedded block RAM supports deep capture buffers and pattern memory, and 744 I/Os expose front-panel trigger I/O plus parallel LVDS measurement channels. The I4 industrial speed grade supports deterministic timing closure for protocol testers demanding sub-nanosecond jitter budgets.

What is the EP4SGX530KH40I4?
The EP4SGX530KH40I4 is an Altera/Intel Stratix IV GX FPGA with 531,200 logic elements, 28,033,024 bits of embedded RAM, 21,248 LABs/CLBs, and 744 programmable I/O pins. It is fabricated on a 40 nm process and housed in a 1517-ball FCBGA / HBGA package. The device targets high-performance, transceiver-rich designs requiring up to 8.5 Gbps serial links.
How much logic does the EP4SGX530KH40I4 have?
The EP4SGX530KH40I4 contains 531,200 logic elements organized into 21,248 LABs/CLBs, plus 28,033,024 bits of embedded block RAM. This places it at the top of the Stratix IV GX family density range, suitable for wide datapaths, large protocol stacks, and complex signal-processing pipelines.
What package does the EP4SGX530KH40I4 use?
The EP4SGX530KH40I4 ships in a 1517-ball flip-chip BGA (FCBGA, also called HBGA) with a 40 nm industrial-grade silicon die. The FCBGA footprint is shared across the Stratix IV GX KH40 speed/pin package family, allowing PCB reuse across the related variants in the Site MPN list.
What is the maximum transceiver data rate of the EP4SGX530KH40I4?
The Stratix IV GX transceivers on the EP4SGX530KH40I4 support data rates up to 8.5 Gbps, sufficient for PCIe Gen1/Gen2, XAUI, CEI-6G, Serial RapidIO, CPRI, and OBSAI. Per the Altera Stratix IV Device Handbook, available transceiver count and channel placement depend on package choice, and the KH40 package exposes the full GX transceiver set.
Where can I buy EP4SGX530KH40I4?
The EP4SGX530KH40I4 is available from authorized distributors such as DigiKey, Mouser, Octopart-listed stockists, and specialty brokers including TrustedParts, ETEI, and Karl Kruse. Prices vary widely based on date code, factory lead, and screening. As of 2026-09-10, indicative distributor pricing for new factory stock starts around USD 4,800 for qty 1 and decreases substantially at qty 1,000.
What is the price of EP4SGX530KH40I4?
Indicative pricing for the EP4SGX530KH40I4 is approximately USD 4,800 at qty 1, USD 4,250 at qty 10, USD 3,850 at qty 100, USD 3,400 at qty 500, and USD 3,050 at qty 1,000, based on distributor listings as of 2026-09-10. The legacy Altera silicon commands a premium versus mid-range Cyclone families because it is end-of-life and now sourced through the secondary market.
What is the lead time for EP4SGX530KH40I4?
Lead time for the EP4SGX530KH40I4 is currently variable because the part is in Not Recommended for New Designs (NRND) status, with most production channel inventory allocated to existing programs. New orders at authorized stockists typically ship from on-hand stock within 1-2 weeks, while factory orders can extend to several months and are subject to demand-driven allocation.
Is EP4SGX530KH40I4 in stock?
Stock for the EP4SGX530KH40I4 exists but is limited, since the part is in NRND lifecycle and most inventory is held by authorized distributors and independent stockists. Octopart aggregates real-time stock from 15+ distributors; buyers should request quotes from several sources to compare lead time and pricing as of 2026-09-10.
EP4SGX530KH40I4 vs EP4SGX530KH40C4 - which should I choose?
Both parts share the same KH40 1517-ball FCBGA package and the same 531,200 logic-element die. The I4 suffix denotes the industrial temperature grade (-40C to +100C), while C4 denotes the commercial grade (0C to +85C). Choose EP4SGX530KH40I4 for extended-temperature deployment, and the C4 variant for cost-sensitive commercial environments with thermal headroom.
When should I choose EP4SGX530KH40I4 over EP4SE530F43I4N?
Choose EP4SGX530KH40I4 when you need integrated multi-gigabit transceivers (up to 8.5 Gbps) and the Stratix IV GX transceiver-rich feature set. Choose EP4SE530F43I4N (Stratix IV E) when your design does not require transceivers and you only need the highest logic density; the E family lacks the GX transceivers, so it is not drop-in compatible in transceiver-using designs.
What is the best drop-in replacement for EP4SGX530KH40I4?
The closest drop-in alternatives for EP4SGX530KH40I4 are same-package same-family Stratix IV GX variants such as EP4SGX530KH40C4N, EP4SGX530KH40I3, and EP4SGX530KH40I3N, all of which share the 1517-ball KH40 FCBGA footprint and 531,200 logic element density. These differ only in speed grade (I3 vs I4) and/or temperature grade (C vs I), and can be substituted on the same PCB.
Where to download the EP4SGX530KH40I4 datasheet PDF?
The official Altera/Intel datasheet PDF for the EP4SGX530KH40I4 is hosted at https://www.alterasemi.com/datasheet/alterasemi/EP4SGX530KH40I4.pdf. Additional documentation, including pin connection guidelines and the Stratix IV device handbook, is available from the Altera/Intel documentation portal and from third-party mirrors listed in the data sources.
Where to find the EP4SGX530KH40I4 pinout?
The pinout for the EP4SGX530KH40I4 (1517-ball FCBGA KH40 package) is published in the Altera/Intel Stratix IV GX pin connection guidelines. Since the device has 1,517 balls, only the ball-map diagram in the datasheet is practical; a per-ball text pinout is not commonly printed. Engineers typically use the Quartus pin planner to assign signals, importing the package ball map.
Is the EP4SGX530KH40I4 RoHS compliant?
RoHS compliance for the EP4SGX530KH40I4 should be verified against the latest Altera/Intel material declaration documents. Many Stratix IV GX variants are RoHS compliant with lead-free soldering, but the exact status depends on date code and specific variant; consult the manufacturer material declaration for the lot in question.
What are the key specifications of the EP4SGX530KH40I4 that engineers should know?
Engineers should know that the EP4SGX530KH40I4 has 531,200 logic elements, 28 Mbit embedded RAM, 744 I/Os, a 40 nm 0.9 V core, and 8.5 Gbps transceivers in a 1517-ball FCBGA package. The I4 speed/temperature grade targets industrial deployment, and the part is NRND, so design teams should plan a migration to a current-generation FPGA such as Stratix 10 or Agilex for new programs.

Engineering reference data for EP4SGX530KH40I4 — comparison, design guidance, and compliance information.

Selection Guide

Choose EP4SGX530KH40I4 when your design needs the highest Stratix IV GX speed grade (I4) plus the industrial -40C to +100C temperature range, and you need the full transceiver complement of 8.5 Gbps multi-gigabit links. It is the right choice for outdoor base stations, defense systems, and high-frequency trading platforms that demand both top-end Fmax and ruggedized temperature coverage. Choose EP4SGX530KH40C4 or EP4SGX530KH40C4N for cost-sensitive commercial deployments where industrial temperature is unnecessary. Choose EP4SGX530KH40I3 or EP4SGX530KH40I3N when the -3 speed grade provides adequate timing margin and you want to optimize unit cost without leaving the industrial temperature range. All of these alternatives share the same 1517-ball KH40 FCBGA footprint, so PCB layout is reusable. For designs that do not require transceivers, consider the Stratix IV E family (e.g., EP4SE530H35C4N) which offers higher logic density at lower cost but lacks the GX transceiver set. For new programs, plan a migration to Stratix 10 or Agilex because the Stratix IV family is in NRND.

Comparison with Alternatives

Parameter This Product EP4SGX530KH40C4N EP4SGX530KH40I3 EP4SGX530KH40I3N EP4SGX530KH40C4 EP4SGX530KH40C3N EP4SGX530KH40C3 EP4SGX530KH40C2N EP4SGX530KH40C2
Package 1517-BBGA, FCBGA (KH40) 1517-BBGA, FCBGA (KH40) - same 1517-BBGA, FCBGA (KH40) - same 1517-BBGA, FCBGA (KH40) - same 1517-BBGA, FCBGA (KH40) - same 1517-BBGA, FCBGA (KH40) - same 1517-BBGA, FCBGA (KH40) - same 1517-BBGA, FCBGA (KH40) - same 1517-BBGA, FCBGA (KH40) - same
Brand Altera Altera Altera Altera Altera Altera Altera Altera Altera
Logic Elements 531,200 531,200 531,200 531,200 531,200 531,200 531,200 531,200 531,200
Speed Grade I4 (industrial, fastest) C4 (commercial, fastest) I3 (industrial, mid) I3 (industrial, mid) C4 (commercial, fastest) C3 (commercial, mid) C3 (commercial, mid) C2 (commercial, slowest) C2 (commercial, slowest)
Temperature Grade Industrial (-40C to +100C) Commercial (0C to +85C) Industrial (-40C to +100C) Industrial (-40C to +100C) Commercial (0C to +85C) Commercial (0C to +85C) Commercial (0C to +85C) Commercial (0C to +85C) Commercial (0C to +85C)
Embedded Memory Bits 28,033,024 28,033,024 28,033,024 28,033,024 28,033,024 28,033,024 28,033,024 28,033,024 28,033,024
User I/O 744 744 744 744 744 744 744 744 744
Max Transceiver Rate 8.5 Gbps 8.5 Gbps 8.5 Gbps 8.5 Gbps 8.5 Gbps 8.5 Gbps 8.5 Gbps 8.5 Gbps 8.5 Gbps

Key Differentiators

  • Highest speed/temperature grade in the KH40 FCBGA package (vs EP4SGX530KH40I3)
  • Industrial temperature grade for outdoor/industrial deployments (vs EP4SGX530KH40C4N)
  • Drop-in PCB compatibility across KH40 speed/temperature variants (vs EP4SGX530KH40C4)

Design Notes

Stratix IV GX devices like the EP4SGX530KH40I4 require a multi-rail power architecture (0.9 V core, 2.5 V/3.3 V I/O and aux) with monotonic sequencing per the Altera pin connection guidelines. Use a dedicated power sequencer (e.g., LM3880, UCD9222, or equivalent) to enforce ramp order - core first, then I/O, then aux - and tie PowerGood to the FPGA's nSTATUS. Decoupling must follow the Stratix IV PDN guide: dozens of 0.1 uF and 0.01 uF MLCCs within ~25 mil of the BGA balls plus bulk polymer/ceramic capacitors on each supply rail. Estimated: ICC_core at full utilization can exceed 15 A; budget at least 25 W just for the 0.9 V rail.

The 1517-ball FCBGA package dissipates substantial heat; typical junction-to-ambient thermal resistance (theta_JA) at 1 m/s airflow is in the low single-digit C/W with proper heatsink attachment. Estimated: at full logic plus transceiver utilization the device can dissipate 25-35 W; design heatsinks with sufficient airflow for the I4 -40C to +100C industrial temperature range. Use thermal vias under the exposed die pad and a high-performance thermal interface material between package and heatsink to keep junction temperature below 100C.

Place the EP4SGX530KH40I4 on a high-layer-count PCB (at least 12 layers) with dedicated power and ground planes. Transceiver channels are highly sensitive to impedance discontinuities and crosstalk - keep high-speed SERDES traces on stripline/microstrip layers adjacent to solid ground, length-match differential pairs within +/- 5 mil for signals up to 8.5 Gbps, and isolate reference clocks behind a stitched guard ring. Memory interfaces (DDR3/RLDRAM II/QDR II+) require matched routing for byte lanes with fly-by topology, and the Quartus pin planner should be used to lock in the bank assignments before layout finalization.

Common pitfalls with the EP4SGX530KH40I4 include: (1) using the wrong speed/temperature grade for design Fmax/temp budgets, which can cause timing failure or thermal shutdown; (2) omitting the configuration scheme (EPCS/EPCQ flash with appropriate pull-ups on nCE/nCONFIG) resulting in configuration failure; (3) misrouting transceiver reference clocks and causing jitter compliance failures; (4) ignoring the JTAG chain ordering when multiple devices share one JTAG bus; (5) failing to enable bitstream encryption for IP protection. Always generate the configuration device programming file with Quartus, validate against the FPGA pin connection guidelines, and run SignalTap II for in-system debug during bring-up.

Stratix IV GX transceivers require carefully designed pre-emphasis, equalization, and DC-blocking networks. Use the Altera/Intel Transceiver Toolkit to tune pre-tap/post-tap pre-emphasis and receiver equalization for the actual channel. Estimated: for 8.5 Gbps backplane channels of 30+ inch FR4, expect to apply at least -1/-2 dB pre-emphasis and 4-tap DFE for an acceptable eye opening. Supply clean low-jitter reference clocks (typically 156.25 MHz for telecom line cards or 100 MHz for PCIe) with HCSL or LVDS signaling; keep jitter below 0.5 ps RMS to meet the bit-error-rate budget at 8.5 Gbps.

Compliance Information

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

RoHS and REACH compliance for EP4SGX530KH40I4 should be verified from the manufacturer material declaration because the part is NRND and revisions vary. AEC-Q100 is not applicable for FPGAs; consult Intel/Altera safety manuals for IEC 61508 or ISO 26262 functional-safety compliance.

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

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Related Components & Terms

Altera Intel EP4SGX530KH40I4 Stratix IV GX FPGA Field Programmable Gate Array Programmable Logic Logic Element LAB CLB FCBGA HBGA 1517-ball BGA Multi-Gigabit Transceiver 8.5 Gbps PCIe Gen2 XAUI Serial RapidIO CPRI OBSAI Quartus Nios II AES bitstream encryption RoHS AEC-Q100 40 nm process node JTAG
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