FPGA & adaptive SoC databook · online editionRev. 2026.10

10CX085

AlteraCyclone 10 GX

The 10CX085 is a Cyclone 10 GX FPGA from Altera, built on a 20 nm process. It provides 31,000 adaptive logic modules (ALMs) (85,000 logic elements (LEs)), about 62,000 LUT4 equivalents, 124,000 flip-flops, 5.7 Mb of block RAM and 84 variable-precision DSP blocks. It offers up to 192 user I/O pins and 6 XCVR transceivers at up to 12.5 Gb/s, with hard PCI Express Gen2 x4 blocks. It is available in 2 packages, from the U484 (19 × 19 mm) to the F672 (27 × 27 mm). Designs are built with Altera Quartus Prime.

62KLUT4-equivalent
31KALMs
84variable-precision DSP blocks
5.7 MbBlock RAM
192Max. user I/O
6Transceivers (12.5 Gb/s)

Specifications

VendorAltera
FamilyCyclone 10 GX
SeriesCyclone
Process20 nm
Configuration memorySRAM
LUT4-equivalent capacity62,000
Adaptive logic modules (ALMs)31,000
   LUT noteAdaptive logic modules (ALMs): fracturable 8-input LUTs; each ALM can implement two 4-input functions
Logic elements (LEs)85,000
Flip-flops124,000
Distributed RAM653 Kb
Block RAM5.7 Mb (291 × 20 Kb)
DSP (variable-precision DSP block)84
Max. user I/O192
XCVR transceivers6 × 12.5 Gb/s
PCI Express Gen2 x4
Analog / monitorNone
Design toolAltera Quartus Prime

Packages

PackageSize (mm)Pitch (mm)User I/OTransceivers
U48419 × 190.81886
F67227 × 271.01926

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 10CX085

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

DeviceLUT4-eq.Vendor logicDSPBlock RAMMax I/OTransceiversPCIe
LFCPNX-50Lattice CertusPro-NX43.3K 43.3K LUT452K LC961.7 Mb2694 SERDES 10.3125 Gb/sGen3
Certus-N2 CT06Lattice Certus-N240K 40K LUT465K LC1204 Mb1964 SERDES 16 Gb/s—
5CGXC5Altera Cyclone V58.2K 29.1K ALMs77K LE1504.4 Mb3366 XCVR 3.125 Gb/sGen1
5CGTD5Altera Cyclone V58.2K 29.1K ALMs77K LE1504.4 Mb3366 XCVR 6.144 Gb/sGen2
LFMXO5-55TDLattice MachXO5-NX44.2K 44.2K LUT453K LC1102.9 Mb2972 SERDESGen2
LFCPNX-100Lattice CertusPro-NX80K 80K LUT496K LC1563.7 Mb3058 SERDES 10.3125 Gb/sGen3

Compare side by side: 10CX085 vs LFCPNX-50, 10CX085 vs Certus-N2 CT06, 10CX085 vs 5CGXC5.

10CX085 quick facts

How many LUTs does the 10CX085 have?

The 10CX085 has 31,000 adaptive logic modules (ALMs), about 62,000 LUT4 equivalents (85,000 logic elements (les) as published by Altera).

How many DSP blocks does the 10CX085 have?

The 10CX085 has 84 variable-precision DSP blocks and 5.7 Mb of block RAM.

Does the 10CX085 have transceivers?

Yes, 6 XCVR transceivers at up to 12.5 Gb/s.

What are the alternatives to the 10CX085?

Devices of similar size in other families include LFCPNX-50 (Lattice CertusPro-NX), Certus-N2 CT06 (Lattice Certus-N2), 5CGXC5 (Altera Cyclone V).

Which software is used to design with the 10CX085?

Designs for the 10CX085 are built with Altera Quartus Prime.

Other Cyclone 10 GX devices

DeviceLUT4-eq.Vendor logicDSPBlock RAMMax I/OTransceiversPCIe
10CX08562K 31K ALMs85K LE845.7 Mb1926 XCVR 12.5 Gb/sGen2
10CX10576K 38K ALMs104K LE1257.5 Mb28412 XCVR 12.5 Gb/sGen2
10CX150110K 54.8K ALMs150K LE1569.3 Mb28412 XCVR 12.5 Gb/sGen2
10CX220161K 80.3K ALMs220K LE19211.5 Mb28412 XCVR 12.5 Gb/sGen2

Source: Altera Cyclone 10 GX FPGA Product Table, 2025.09.24. Data is extracted automatically from the vendor's selection guide; verify critical values in the device data sheet.