FPGA & adaptive SoC databook · online editionRev. 2026.10

5SGXA3

AlteraStratix V

The 5SGXA3 is a Stratix V FPGA from Altera, built on a 28 nm process. It provides 128,300 adaptive logic modules (ALMs) (340,000 logic elements (LEs)), 513,000 flip-flops, 18.7 Mb of block RAM and 256 variable-precision DSP blocks. It offers up to 696 user I/O pins and 36 GX transceivers at up to 14.1 Gb/s, with hard PCI Express Gen3 blocks. It is available in 4 packages, from the H780 (EH29) (33 × 33 mm) to the F1517 (KF40) (40 × 40 mm). Designs are built with Altera Quartus Prime.

128,300ALMs
256variable-precision DSP blocks
18.7 MbBlock RAM
696Max. user I/O
36Transceivers (14.1 Gb/s)

Specifications

VendorAltera
FamilyStratix V
SeriesStratix
Process28 nm
Configuration memorySRAM
Adaptive logic modules (ALMs)128,300
   Logic blockadaptive logic module: fracturable 8-input LUT (one 6-input or two independent 4-input functions)
LUT4 equivalent (approx.)≈256,600
Logic elements (LEs)340,000
Flip-flops513,000
Block RAM18.7 Mb (957 × 20 Kb)
DSP (variable-precision DSP block)256
Clock management tiles20
Max. user I/O696
GX transceivers36 × 14.1 Gb/s
PCI Express2× Gen3
Analog / monitorNone
Design toolAltera Quartus Prime

Packages

PackageSize (mm)Pitch (mm)User I/OTransceivers
H780 (EH29)33 × 331.036012
F1152 (HF35)35 × 351.043224
F1152 (KF35)35 × 351.043236
F1517 (KF40)40 × 401.069636

Package names are shown as in the selection guide; the full ordering code adds speed grade and temperature (see the data sheet).

Alternatives to the 5SGXA3

Closest matches in other families and vendors by logic, DSP, memory, I/O and transceivers. Check pin compatibility and tools before migrating.

DeviceLUTsVendor logicDSPBlock RAMMax I/OTransceiversPCIeCoreScore
5CGXC9Altera Cyclone V113,560 ALMs301K LE34211.9 Mb56012 XCVR 3.125 Gb/sGen1—
5CGTD9Altera Cyclone V113,560 ALMs301K LE34211.9 Mb56012 XCVR 6.144 Gb/sGen2—
10AX022Altera Arria 1083,730 ALMs288K LE19211.5 Mb28812 XCVR 17.4 Gb/sGen3—
XCSU200PAMD Spartan UltraScale+100,000 LUT6219K SLC3846.8 Mb5728 GTH 16.3 Gb/sGen4—
10CX220Altera Cyclone 10 GX80,330 ALMs220K LE19211.5 Mb28412 XCVR 12.5 Gb/sGen2—
GX 400Altera Stratix 10 GX/SX128,160 ALMs378K LE64830 Mb37424 XCVR/XCVR 28.3 Gb/sGen3—

Compare side by side: 5SGXA3 vs 5CGXC9, 5SGXA3 vs 5CGTD9, 5SGXA3 vs 10AX022.

Compare the 5SGXA3 with up to three other FPGAs.

5SGXA3 quick facts

How many LUTs does the 5SGXA3 have?

The 5SGXA3 has 128,300 adaptive logic modules (ALMs) (340,000 logic elements (les) as published by Altera). Logic block: adaptive logic module: fracturable 8-input LUT (one 6-input or two independent 4-input functions).

How many DSP blocks does the 5SGXA3 have?

The 5SGXA3 has 256 variable-precision DSP blocks and 18.7 Mb of block RAM.

Does the 5SGXA3 have transceivers?

Yes, 36 GX transceivers at up to 14.1 Gb/s.

What are the alternatives to the 5SGXA3?

Devices of similar size in other families include 5CGXC9 (Altera Cyclone V), 5CGTD9 (Altera Cyclone V), 10AX022 (Altera Arria 10).

Which software is used to design with the 5SGXA3?

Designs for the 5SGXA3 are built with Altera Quartus Prime.

Other Stratix V devices

DeviceLUTsVendor logicDSPBlock RAMMax I/OTransceiversPCIeCoreScore
5SGSD389,000 ALMs236K LE60013.4 Mb43224 GX 14.1 Gb/sGen3—
5SGXA3128,300 ALMs340K LE25618.7 Mb69636 GX 14.1 Gb/sGen3—
5SGSD4135,840 ALMs360K LE1,04418.7 Mb69636 GX 14.1 Gb/sGen3—
5SGXA4158,500 ALMs420K LE25637.1 Mb69636 GX 14.1 Gb/sGen3—
5SGTC5160,400 ALMs425K LE25645 Mb60036 GT/GX 28.05 Gb/sGen3—
5SGSD5172,600 ALMs457K LE1,59039.3 Mb69636 GX 14.1 Gb/sGen31,152 storeypeak
5SGXA5185,000 ALMs490K LE25645 Mb84048 GX 14.1 Gb/sGen3—
5SGXB5185,000 ALMs490K LE39941 Mb60066 GX 14.1 Gb/sGen3—
5SGSD6220,000 ALMs583K LE1,77545.3 Mb84048 GX 14.1 Gb/sGen3—
5SGXB6225,400 ALMs597K LE39952 Mb60066 GX 14.1 Gb/sGen3—
5SGTC7234,720 ALMs622K LE25650 Mb60036 GT/GX 28.05 Gb/sGen3—
5SGXA7234,720 ALMs622K LE25650 Mb84048 GX 14.1 Gb/sGen31,568 de5_net
5SGSD8262,400 ALMs695K LE1,96350.1 Mb84048 GX 14.1 Gb/sGen3—
5SGXA9317,000 ALMs840K LE35251.6 Mb84048 GX 14.1 Gb/sGen3—
5SGXB9317,000 ALMs840K LE35251.6 Mb60066 GX 14.1 Gb/sGen3—
5SEE9317,000 ALMs840K LE35251.6 Mb840———
5SGXAB359,200 ALMs952K LE35251.6 Mb84048 GX 14.1 Gb/sGen3—
5SGXBB359,200 ALMs952K LE35251.6 Mb60066 GX 14.1 Gb/sGen3—
5SEEB359,200 ALMs952K LE35251.6 Mb840———

Source: Stratix V Device Overview, 683258 (2024.12.20). Data is extracted automatically from the vendor's selection guide; verify critical values in the device data sheet.