GW2AN-55
GowinArora IIThe GW2AN-55 is an Arora II FPGA from Gowin, built on a 55 nm process. It provides 54,720 LUT4 look-up tables, 41,040 flip-flops, 2.5 Mb of block RAM, with no hard multipliers. It offers up to 608 user I/O pins. It comes in a single package, the UG676 (21 × 21 mm). Designs are built with Gowin EDA.
Specifications
| Vendor | Gowin |
|---|---|
| Family | Arora II |
| Series | GW2A |
| Process | 55 nm |
| Configuration memory | SRAM |
| LUT4-equivalent capacity | 54,720 |
| Look-up tables (LUT4) | 54,720 |
| Flip-flops | 41,040 |
| Distributed RAM | 106 Kb |
| Block RAM | 2.5 Mb (140 × 18 Kb) |
| In-package memory | NOR Flash 32M |
| DSP (18×18 multiplier) | None |
| Max. user I/O | 608 |
|---|---|
| Transceivers | None |
| PCI Express | None |
| Analog / monitor | None |
| Design tool | Gowin EDA |
Packages
| Package | Size (mm) | Pitch (mm) | User I/O | Transceivers |
|---|---|---|---|---|
| UG676 | 21 × 21 | 0.8 | 526 | — |
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 GW2AN-55
Closest matches in other families and vendors by logic, DSP, memory, I/O and transceivers. Check pin compatibility and tools before migrating.
| Device | LUT4-eq. | Vendor logic | DSP | Block RAM | Max I/O | Transceivers | PCIe |
|---|---|---|---|---|---|---|---|
| LCMXO3L-9400Lattice MachXO3 | 9.4K 9.4K LUT4 | — | — | 0.4 Mb | 384 | — | — |
| LCMXO3LF-9400Lattice MachXO3 | 9.4K 9.4K LUT4 | — | — | 0.4 Mb | 384 | — | — |
| LCMXO3D-9400Lattice MachXO3D | 9.4K 9.4K LUT4 | — | — | 0.4 Mb | 383 | — | — |
| LFMXO4-110Lattice MachXO4 | 9.4K 9.4K LUT4 | 11.3K LC | — | 0.4 Mb | 382 | — | — |
| LFMXO4D-110Lattice MachXO4 | 9.4K 9.4K LUT4 | 11.3K LC | — | 0.4 Mb | 381 | — | — |
| EP4CGX15Altera Cyclone IV | 14K 14K LUT4 | 14K LE | — | 0.5 Mb | 72 | 2 XCVR 3.125 Gb/s | Gen2 |
Compare side by side: GW2AN-55 vs LCMXO3L-9400, GW2AN-55 vs LCMXO3LF-9400, GW2AN-55 vs LCMXO3D-9400.
GW2AN-55 quick facts
How many LUTs does the GW2AN-55 have?
The GW2AN-55 has 54,720 LUT4 look-up tables, about 54,720 LUT4 equivalents.
How many DSP blocks does the GW2AN-55 have?
The GW2AN-55 has no 18×18 multipliers and 2.5 Mb of block RAM.
Does the GW2AN-55 have transceivers?
No, the GW2AN-55 has no multi-gigabit transceivers. Its user I/O supports up to 608 pins.
What are the alternatives to the GW2AN-55?
Devices of similar size in other families include LCMXO3L-9400 (Lattice MachXO3), LCMXO3LF-9400 (Lattice MachXO3), LCMXO3D-9400 (Lattice MachXO3D).
Which software is used to design with the GW2AN-55?
Designs for the GW2AN-55 are built with Gowin EDA.
Other Arora II devices
| Device | LUT4-eq. | Vendor logic | DSP | Block RAM | Max I/O | Transceivers | PCIe |
|---|---|---|---|---|---|---|---|
| GW2AN-9X | 10.4K 10.4K LUT4 | — | — | 0.5 Mb | 389 | — | — |
| GW2A-18 | 20.7K 20.7K LUT4 | — | 48 | 0.8 Mb | 384 | — | — |
| GW2AN-18X | 20.7K 20.7K LUT4 | — | — | 0.5 Mb | 389 | — | — |
| GW2AR-18 | 20.7K 20.7K LUT4 | — | 48 | 0.8 Mb | 384 | — | — |
| GW2ANR-18 | 20.7K 20.7K LUT4 | — | 48 | 0.8 Mb | 384 | — | — |
| GW2A-55 | 54.7K 54.7K LUT4 | — | 40 | 2.5 Mb | 608 | — | — |
| GW2AN-55 | 54.7K 54.7K LUT4 | — | — | 2.5 Mb | 608 | — | — |
Source: Gowin Arora II product page, retrieved 2026-10-24. Data is extracted automatically from the vendor's selection guide; verify critical values in the device data sheet.