GW3AR-20
GowinArora IIIThe GW3AR-20 is an Arora III FPGA from Gowin. It provides 23,040 LUT4 look-up tables, 23,040 flip-flops, 1.1 Mb of block RAM and 26 DSP blocks. It offers up to 238 user I/O pins. It is available in 2 packages, from the UG256 (14 × 14 mm) to the UG256D (14 × 14 mm). Designs are built with Gowin EDA.
Specifications
| Vendor | Gowin |
|---|---|
| Family | Arora III |
| Series | GW3A |
| Configuration memory | SRAM |
| LUT4-equivalent capacity | 23,040 |
| Look-up tables (LUT4) | 23,040 |
| Flip-flops | 23,040 |
| Distributed RAM | 180 Kb |
| Block RAM | 1.1 Mb |
| In-package memory | SDRAM 64 (512K x 32 Bits X 4 Banks, UG256 |
| DSP (DSP block) | 26 |
| Max. user I/O | 238 |
|---|---|
| Transceivers | None |
| PCI Express | None |
| Analog / monitor | None |
| Design tool | Gowin EDA |
Packages
| Package | Size (mm) | Pitch (mm) | User I/O | Transceivers |
|---|---|---|---|---|
| UG256 | 14 × 14 | 0.8 | 190 | — |
| UG256D | 14 × 14 | 0.8 | 190 | — |
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 GW3AR-20
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 |
|---|---|---|---|---|---|---|---|
| GW5A-25Gowin Arora V | 23K 23K LUT4 | — | 28 | 1 Mb | 239 | — | — |
| GW5AR-25Gowin Arora V | 23K 23K LUT4 | — | 28 | 1 Mb | 239 | — | — |
| LFE5U-25Lattice ECP5 | 24K 24K LUT4 | — | 28 | 1 Mb | 197 | — | — |
| 5CEA2Altera Cyclone V | 18.9K 9.4K ALMs | 25K LE | 25 | 1.7 Mb | 224 | — | — |
| T20Efinix Trion | ≈19.7K 19.7K LEs | 19.7K LE | 36 | 1 Mb | 230 | — | — |
| LFMXO5-25Lattice MachXO5-NX | 22.5K 22.5K LUT4 | 27K LC | 20 | 1.4 Mb | 305 | — | — |
Compare side by side: GW3AR-20 vs GW5A-25, GW3AR-20 vs GW5AR-25, GW3AR-20 vs LFE5U-25, GW3AR-20 vs 5CEA2, GW3AR-20 vs LFMXO5-25.
GW3AR-20 quick facts
How many LUTs does the GW3AR-20 have?
The GW3AR-20 has 23,040 LUT4 look-up tables, about 23,040 LUT4 equivalents.
How many DSP blocks does the GW3AR-20 have?
The GW3AR-20 has 26 DSP blocks and 1.1 Mb of block RAM.
Does the GW3AR-20 have transceivers?
No, the GW3AR-20 has no multi-gigabit transceivers. Its user I/O supports up to 238 pins.
What are the alternatives to the GW3AR-20?
Devices of similar size in other families include GW5A-25 (Gowin Arora V), GW5AR-25 (Gowin Arora V), LFE5U-25 (Lattice ECP5).
Which software is used to design with the GW3AR-20?
Designs for the GW3AR-20 are built with Gowin EDA.
Other Arora III devices
| Device | LUT4-eq. | Vendor logic | DSP | Block RAM | Max I/O | Transceivers | PCIe |
|---|---|---|---|---|---|---|---|
| GW3AT-6 | 6.9K 6.9K LUT4 | — | — | 0.3 Mb | 70 | 1 SERDES 8.5 Gb/s | — |
| GW3A-20 | 23K 23K LUT4 | — | 52 | 2.1 Mb | 238 | — | — |
| GW3AR-20 | 23K 23K LUT4 | — | 26 | 1.1 Mb | 238 | — | — |
Source: Gowin Arora III product page, retrieved 2026-10-24. Data is extracted automatically from the vendor's selection guide; verify critical values in the device data sheet.