EP1SGX40G - Stratix GX FPGA with 3.4M Gates & 20 Transceivers | Intel
MPN: EP1SGX40G ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $850 | $850.00 |
| 10 | $782 | $7,820.00 |
| 100 | $705 | $70,500.00 |
| 500 | $645 | $322,500.00 |
| 1,000 | $595 | $595,000.00 |
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View Datasheet →EP1SGX40G Maximum Ratings & Electrical Characteristics
| Family | Stratix GX |
| Logic Elements | 41,250 |
| Total RAM Bits | 3,423,744 |
| Maximum User I/O Pins | 624 |
| Package | 1020-pin FineLine BGA |
| Number of Transceivers | 20 |
| Maximum Transceiver Data Rate | 3.1875 Gbps |
| Minimum Transceiver Data Rate | 500 Mbps |
| Transceiver Channels per Bank | 4 |
| Supported Serial Standards | PCI Express, XAUI, Serial RapidIO, SerialLite II |
| 8B/10B Encoder/Decoder | Hardware (dedicated per channel) |
| Speed Grades Available | C5, C6, C7, I5, I6, I7 |
| Operating Temperature Range (Commercial) | 0C to +85C |
| Operating Temperature Range (Industrial) | -40C to +100C |
| Configuration Method | EPC enhanced configuration devices, JTAG |
| Vertical Migration | Supported within 1020-pin FineLine BGA package (EP1SGX25/EP1SGX40) |
EP1SGX40G 1020-pin fineline bga Pin Configuration Guide
Complete pinout information for EP1SGX40G (1020-pin fineline bga package) with 624 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.
No detailed pinout data available for EP1SGX40G.
Refer to the datasheet for full pin configuration.
Estimated pin count: 624 pins (digital package)
Safe Operating Area (SOA) & Thermal Characteristics
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
EP1SGX40G is suitable for 6 applications: PCI Express Endpoint/Root Complex, XAUI Backplane Bridge, Serial RapidIO Bridge, Custom Serializer/Deserializer (SerDes) Interface, High-Speed Data Acquisition, Storage Area Network Switch/Fabric.
PCI Express Endpoint/Root Complex
The EP1SGX40G's 20 multi-gigabit transceivers and built-in PCI Express hard IP make it a strong choice for PCI Express Gen1 (2.5 Gbps) endpoint and root-complex implementations. The transceivers' 500 Mbps to 3.1875 Gbps range covers PCIe Gen1 with margin, and the dedicated 8B/10B encoding hardware eliminates FPGA soft-logic overhead. With 41,250 logic elements and 3,423,744 RAM bits, the device accommodates TLP handling logic, DMA engines, and MSI/MSI-X interrupt controllers on-chip. Designers should reference the Stratix GX PCI Express user guide for hard IP block instantiation.
Recommended
XAUI Backplane Bridge
XAUI (10 Gigabit Attachment Unit Interface) operates at 3.125 Gbps per lane, fitting cleanly within the EP1SGX40G's 3.1875 Gbps maximum transceiver rate. Four transceivers form a complete XAUI link with lane alignment, deskew, and rate compensation handled in the XAUI soft IP. The 3.4M-gate capacity supports 10G Ethernet MAC, bridging logic, and traffic management functions. The 1020-pin FineLine BGA package's 624 user I/O pins accommodate parallel side-band interfaces to switch fabrics and lookup memories.
Recommended
Serial RapidIO Bridge
Serial RapidIO operates at 1.25, 2.5, and 3.125 Gbps lane rates, all supported by EP1SGX40G's transceiver range. The device bridges between DSP processors, ASICs, and host CPUs in wireless base-station and high-performance embedded systems. With 20 transceivers, multiple RapidIO links can be parallelized for switched-fabric topologies, and the on-chip RAM (3.4 Mb) accommodates message buffering and DMA descriptor queues. The Stratix GX Serial RapidIO MegaCore function provides physical and transport-layer implementations.
Recommended
Custom Serializer/Deserializer (SerDes) Interface
For proprietary backplane or chip-to-chip serial protocols, the EP1SGX40G provides flexibility through its programmable transceivers. Designers configure pre-emphasis, equalization, and termination to match channel characteristics. Each transceiver supports AC-coupled or DC-coupled operation and can operate with custom 8B/10B or 64B/66B encoding in soft logic. The device is well-suited for proprietary ASIC-to-FPGA links, legacy protocol emulation, and custom radar/datacom interfaces where standard protocols do not fit.
Recommended
High-Speed Data Acquisition
Test-and-measurement and scientific instrumentation benefit from EP1SGX40G's combination of 20 serial lanes and 3.4 Mb embedded RAM. The device aggregates data from multiple ADC channels serialized via LVDS or external SerDes, performs real-time DSP (filtering, FFT, decimation), and outputs via Ethernet or PCIe. The 1020-pin FineLine BGA's 624 I/Os provide parallel ADC input ports and trigger interfaces. The industrial temperature variant EP1SGX40DF1020I7 supports field-deployed instruments.
Recommended
Storage Area Network Switch/Fabric
The EP1SGX40G supports multiple Fibre Channel (1.0625/2.125 Gbps) or SAS (1.5/3.0 Gbps) links simultaneously through its transceivers, enabling Fibre Channel over Ethernet (FCoE) or iSCSI gateway implementations. The 41,250 logic elements accommodate cut-through forwarding engines and port-mirroring logic. The 1020-pin FineLine BGA package is appropriate for high-port-count switches, and the EP1SGX40 vertical-migration capability allows single-PCB product families with 16/20 transceiver variants.
Recommended
Recommended Products Summary
Engineering reference data for EP1SGX40G — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EP1SGX40DF1020C5 | EP1SGX40DF1020C6 | EP1SGX40DF1020C7 | EP1SGX40DF1020I5 | EP1SGX40DF1020I6 | EP1SGX40DF1020I7 | EP1SGX40FF1020C5 |
|---|---|---|---|---|---|---|---|---|
| Package | 1020-pin FineLine BGA | 1020-pin FineLine BGA - same | 1020-pin FineLine BGA - same | 1020-pin FineLine BGA - same | 1020-pin FineLine BGA - same | 1020-pin FineLine BGA - same | 1020-pin FineLine BGA - same | 1020-pin FineLine BGA - same |
| Brand | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) | Intel (formerly Altera) |
| Logic Elements | 41,250 | 41,250 | 41,250 | 41,250 | 41,250 | 41,250 | 41,250 | 41,250 |
| Transceivers | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Max Transceiver Data Rate | 3.1875 Gbps | 3.1875 Gbps | 3.1875 Gbps | 3.1875 Gbps | 3.1875 Gbps | 3.1875 Gbps | 3.1875 Gbps | 3.1875 Gbps |
| Speed Grade | Unspecified (family supports C5/C6/C7/I5/I6/I7) | C5 (commercial, slowest) | C6 (commercial, mid) | C7 (commercial, fastest) | I5 (industrial, slowest) | I6 (industrial, mid) | I7 (industrial, fastest) | C5 with lead-free finish |
| Operating Temperature | Depends on speed grade (commercial or industrial) | 0C to +85C (commercial) | 0C to +85C (commercial) | 0C to +85C (commercial) | -40C to +100C (industrial) | -40C to +100C (industrial) | -40C to +100C (industrial) | 0C to +85C (commercial) |
| Lifecycle Status | Obsolete (as of 2026-09-07) | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Highest-density Stratix GX variant with 20 transceivers (vs EP1SGX25 (Stratix GX sibling))
- Integrated multi-gigabit transceivers eliminate external SerDes (vs EP1S40 (Stratix without GX transceivers))
- Vertical migration support within 1020-pin FineLine BGA package (vs Smaller-package Stratix GX variants (EP1SGX10C in 672-pin BGA))
Design Notes
The 1020-pin FineLine BGA package requires a multi-layer PCB with a controlled-impedance stackup for the 20 high-speed transceiver lanes. Use a stackup with stripline routing for 50-ohm differential pairs and apply length-matching within 5 mils across all 4 lanes of each XAUI or PCIe link. Power plane decoupling requires multiple bulk capacitors (100 uF tantalum plus 10 uF and 100 nF ceramic in parallel) per VCCINT, VCCIO, and VCCA domain, with vias placed within 100 mils of each BGA pad.
The EP1SGX40G requires multiple supply rails: VCCINT (core voltage), VCCIO (I/O bank voltage, bank-specific), VCCA_PLL (PLL analog supply), VCCA_TX/RX (transceiver analog supplies), and VCCR (transceiver receive termination). Each rail has specific ramp-rate requirements (typically 1 ms to 100 ms monotonic), and VCCA rails must be powered up before or simultaneously with VCCINT to prevent latch-up. Reference the Stratix GX power-supply design guidelines in the device family datasheet for the exact sequencing circuit.
Configure pre-emphasis and equalization on each transceiver channel to match the channel insertion loss. For backplane channels with >6 dB loss at 1.875 GHz, enable maximum pre-emphasis. Use AC-coupling capacitors (0.1 uF X7R) on each serial lane near the TX pin, with 50-ohm termination on the RX side. For multi-link protocols like XAUI, the 4 lanes within a link must be length-matched to within 0.5 inches to ensure proper deskew.
Do not confuse EP1SGX40G (Stratix GX with 20 transceivers) with EP1SGX25 (Stratix GX with 16 transceivers) or EP1S40 (Stratix without transceivers). Both EP1SGX25 and EP1SGX40 share the 1020-pin FineLine BGA package, but pin assignments for transceiver banks differ - a board designed for EP1SGX25 may not work with EP1SGX40 without verifying the pinout against the official Stratix GX pin information document.
Estimated: At maximum logic utilization and all 20 transceivers active at 3.1875 Gbps with full pre-emphasis, EP1SGX40G power consumption is approximately 12-18 W. The FineLine BGA package requires a thermal pad bonded to the PCB's inner copper ground plane for heat spreading. For systems without airflow, use at least 16 thermal vias (0.3 mm drill) under the package thermal pad to keep junction temperature below 100C in commercial applications.
Compliance Information
Compliance status not present in the verified web data. EP1SGX40 family was originally manufactured by Altera (pre-Intel acquisition). F-finish variants (EP1SGX40FF1020xxx) typically denote lead-free finish, but RoHS compliance should be verified per date code.
