T85
EfinixTrionThe T85 is a Trion FPGA from Efinix, built on a 40 nm process. It provides 84,096 logic elements (LEs) (Efinix does not publish the LUT count for this device), 4 Mb of block RAM and 240 18×18 multipliers. It offers up to 278 user I/O pins. It is available in 3 packages, from the FBGA324 (12 × 12 mm) to the FBGA484 (18 × 18 mm). Designs are built with Efinix Efinity.
Specifications
| Vendor | Efinix |
|---|---|
| Family | Trion |
| Series | Trion |
| Process | 40 nm |
| Configuration memory | SRAM |
| LUT4-equivalent capacity | ≈84,096 (from LEs) |
| Look-up tables (LUT4) | Not published |
| LUT note | Efinix only publishes logic elements (LEs) for this device, an equivalent unit that is not a LUT count |
| Logic elements (LEs) | 84,096 |
| Block RAM | 4 Mb |
| DSP (18×18 multiplier) | 240 |
| Max. user I/O | 278 |
|---|---|
| Transceivers | None |
| PCI Express | None |
| Hard memory controller | DDR3, LPDDR3, LPDDR2 x32 |
| Analog / monitor | None |
| Design tool | Efinix Efinity |
Packages
| Package | Size (mm) | Pitch (mm) | User I/O | Transceivers |
|---|---|---|---|---|
| FBGA324 | 12 × 12 | 0.65 | 130 | — |
| FBGA484 | 18 × 18 | 0.8 | 256 | — |
| FBGA576 | 16 × 16 | 0.65 | 278 | — |
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 T85
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 |
|---|---|---|---|---|---|---|---|
| Ti95Efinix Titanium | ≈93.2K 93.2K LEs | 93.2K LE | 210 | 4.5 Mb | 241 | — | — |
| 10CL080Altera Cyclone 10 LP | 80K 80K LUT4 | 80K LE | 244 | 2.7 Mb | 423 | — | — |
| EP4CE75Altera Cyclone IV | 75K 75K LUT4 | 75K LE | 200 | 2.7 Mb | 426 | — | — |
| LFE5U-85Lattice ECP5 | 84K 84K LUT4 | — | 156 | 3.7 Mb | 365 | — | — |
| Ti125Efinix Titanium | 109K 109K LUT4 | 123K LE | 288 | 5.9 Mb | 241 | — | — |
| XC7S100AMD Spartan-7 | 102K 64K LUT6 | 102K LC | 160 | 4.2 Mb | 400 | — | — |
Compare side by side: T85 vs Ti95, T85 vs 10CL080, T85 vs EP4CE75.
T85 quick facts
How much logic does the T85 have?
Efinix publishes 84,096 logic elements (les) for the T85; it does not publish the LUT count.
How many DSP blocks does the T85 have?
The T85 has 240 18×18 multipliers and 4 Mb of block RAM.
Does the T85 have transceivers?
No, the T85 has no multi-gigabit transceivers. Its user I/O supports up to 278 pins.
What are the alternatives to the T85?
Devices of similar size in other families include Ti95 (Efinix Titanium), 10CL080 (Altera Cyclone 10 LP), EP4CE75 (Altera Cyclone IV).
Which software is used to design with the T85?
Designs for the T85 are built with Efinix Efinity.
Other Trion devices
| Device | LUT4-eq. | Vendor logic | DSP | Block RAM | Max I/O | Transceivers | PCIe |
|---|---|---|---|---|---|---|---|
| T4 | ≈3.9K 3.9K LEs | 3.9K LE | 4 | 0.1 Mb | 55 | — | — |
| T8 | ≈7.4K 7.4K LEs | 7.4K LE | 8 | 0.1 Mb | 97 | — | — |
| T13 | ≈12.8K 12.8K LEs | 12.8K LE | 24 | 0.7 Mb | 195 | — | — |
| T20 | ≈19.7K 19.7K LEs | 19.7K LE | 36 | 1 Mb | 230 | — | — |
| T35 | ≈31.7K 31.7K LEs | 31.7K LE | 120 | 1.4 Mb | 230 | — | — |
| T55 | ≈54.2K 54.2K LEs | 54.2K LE | 150 | 2.7 Mb | 278 | — | — |
| T85 | ≈84.1K 84.1K LEs | 84.1K LE | 240 | 4 Mb | 278 | — | — |
| T120 | ≈112K 112K LEs | 112K LE | 320 | 5.3 Mb | 278 | — | — |
Source: Efinix Trion product page and device data sheets, retrieved 2026-10-24. Data is extracted automatically from the vendor's selection guide; verify critical values in the device data sheet.