LCMXO640C
LatticeMachXOThe LCMXO640C is a MachXO FPGA from Lattice, built on a 130 nm process. It provides 640 LUT4 look-up tables, — of block RAM, with no hard multipliers. It offers up to 159 user I/O pins. It is available in 6 packages, from the csBGA100 (8 × 8 mm) to the TQFP144 (20 × 20 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) | 640 |
| Logic block | 4-input look-up table |
| Distributed RAM | 6.1 Kb |
| DSP (18×18 multiplier) | None |
| Max. user I/O | 159 |
|---|---|
| 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 | 74 | — |
| csBGA132 | 8 × 8 | 0.5 | 101 | — |
| TQFP100 | 14 × 14 | 0.5 | 74 | — |
| TQFP144 | 20 × 20 | 0.5 | 113 | — |
| caBGA256 | 14 × 14 | 0.8 | 159 | — |
| ftBGA256 | 17 × 17 | 1.0 | 159 | — |
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 LCMXO640C
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 |
|---|---|---|---|---|---|---|---|---|
| 5M570ZAltera MAX V | 570 LUT4 | 570 LE | — | — | 159 | — | — | — |
| LCMXO2-640ULattice MachXO2 | 640 LUT4 | — | — | 0.1 Mb | 107 | — | — | — |
| LCMXO3L-640Lattice MachXO3 | 640 LUT4 | — | — | 0.1 Mb | 104 | — | — | — |
| LCMXO3LF-640Lattice MachXO3 | 640 LUT4 | — | — | 0.1 Mb | 104 | — | — | — |
| LCMXO2-640Lattice MachXO2 | 640 LUT4 | — | — | 0 Mb | 79 | — | — | — |
| LFMXO4-010Lattice MachXO4 | 896 LUT4 | 1.1K LC | — | 0.1 Mb | 105 | — | — | — |
Compare side by side: LCMXO640C vs 5M570Z, LCMXO640C vs LCMXO2-640U, LCMXO640C vs LCMXO3L-640.
Compare the LCMXO640C with up to three other FPGAs.
LCMXO640C quick facts
How many LUTs does the LCMXO640C have?
The LCMXO640C has 640 LUT4 look-up tables. Logic block: 4-input look-up table.
How many DSP blocks does the LCMXO640C have?
The LCMXO640C has no 18×18 multipliers and — of block RAM.
Does the LCMXO640C have transceivers?
No, the LCMXO640C has no multi-gigabit transceivers. Its user I/O supports up to 159 pins.
What are the alternatives to the LCMXO640C?
Devices of similar size in other families include 5M570Z (Altera MAX V), LCMXO2-640U (Lattice MachXO2), LCMXO3L-640 (Lattice MachXO3).
Which software is used to design with the LCMXO640C?
Designs for the LCMXO640C 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.