LCMXO256C
LatticeMachXOThe LCMXO256C is a MachXO FPGA from Lattice, built on a 130 nm process. It provides 256 LUT4 look-up tables, — of block RAM, with no hard multipliers. It offers up to 78 user I/O pins. It is available in 2 packages, from the csBGA100 (8 × 8 mm) to the TQFP100 (14 × 14 mm). Temperature grades: commercial, industrial, automotive. Designs are built with Lattice Diamond.
Specifications
| Vendor | Lattice |
|---|---|
| Family | MachXO |
| Series | MachXO |
| Process | 130 nm |
| Configuration memory | Internal flash |
| Look-up tables (LUT4) | 256 |
| Logic block | 4-input look-up table |
| Distributed RAM | 2 Kb |
| DSP (18×18 multiplier) | None |
| Max. user I/O | 78 |
|---|---|
| Transceivers | None |
| PCI Express | None |
| Analog / monitor | None |
| Design tool | Lattice Diamond |
Packages
| Package | Size (mm) | Pitch (mm) | User I/O | Transceivers |
|---|---|---|---|---|
| csBGA100 | 8 × 8 | 0.5 | 78 | — |
| TQFP100 | 14 × 14 | 0.5 | 78 | — |
Package names are shown as in the selection guide; the full ordering code adds speed grade and temperature (see the data sheet).
Speed and temperature grades
| Temperature grade | Junction range | Speed grades |
|---|---|---|
| Commercial (C) | 0 to 85 °C | — |
| Industrial (I) | −40 to 100 °C | — |
| Automotive (A) | — | — |
Alternatives to the LCMXO256C
Closest matches in other families and vendors by logic, DSP, memory, I/O and transceivers. Check pin compatibility and tools before migrating.
| Device | LUTs | Vendor logic | DSP | Block RAM | Max I/O | Transceivers | PCIe | CoreScore |
|---|---|---|---|---|---|---|---|---|
| LCMXO2-256Lattice MachXO2 | 256 LUT4 | — | — | — | 55 | — | — | — |
| 5M240ZAltera MAX V | 240 LUT4 | 240 LE | — | — | 114 | — | — | — |
| 5M160ZAltera MAX V | 160 LUT4 | 160 LE | — | — | 79 | — | — | — |
| iCE40LP384Lattice iCE40 LP/HX/LM | 384 LUT4 | 384 LC | — | — | 39 | — | — | — |
| 5M570ZAltera MAX V | 570 LUT4 | 570 LE | — | — | 159 | — | — | — |
| LCMXO2-640Lattice MachXO2 | 640 LUT4 | — | — | 0 Mb | 79 | — | — | — |
Compare side by side: LCMXO256C vs LCMXO2-256, LCMXO256C vs 5M240Z, LCMXO256C vs 5M160Z.
Compare the LCMXO256C with up to three other FPGAs.
LCMXO256C quick facts
How many LUTs does the LCMXO256C have?
The LCMXO256C has 256 LUT4 look-up tables. Logic block: 4-input look-up table.
How many DSP blocks does the LCMXO256C have?
The LCMXO256C has no 18×18 multipliers and — of block RAM.
Does the LCMXO256C have transceivers?
No, the LCMXO256C has no multi-gigabit transceivers. Its user I/O supports up to 78 pins.
What are the alternatives to the LCMXO256C?
Devices of similar size in other families include LCMXO2-256 (Lattice MachXO2), 5M240Z (Altera MAX V), 5M160Z (Altera MAX V).
Which software is used to design with the LCMXO256C?
Designs for the LCMXO256C are built with Lattice Diamond.
Other MachXO devices
| Device | LUTs | Vendor logic | DSP | Block RAM | Max I/O | Transceivers | PCIe | CoreScore |
|---|---|---|---|---|---|---|---|---|
| LCMXO256E | 256 LUT4 | — | — | — | 78 | — | — | — |
| LCMXO256C | 256 LUT4 | — | — | — | 78 | — | — | — |
| LCMXO640E | 640 LUT4 | — | — | — | 159 | — | — | — |
| LCMXO640C | 640 LUT4 | — | — | — | 159 | — | — | — |
| LCMXO1200E | 1,200 LUT4 | — | — | 0 Mb | 211 | — | — | — |
| LCMXO1200C | 1,200 LUT4 | — | — | 0 Mb | 211 | — | — | — |
| LCMXO2280E | 2,280 LUT4 | — | — | 0 Mb | 271 | — | — | — |
| LCMXO2280C | 2,280 LUT4 | — | — | 0 Mb | 271 | — | — | — |
Source: Lattice MachXO product page, Family Table, retrieved 2026-10-26. Data is extracted automatically from the vendor's selection guide; verify critical values in the device data sheet.