MachXO2 FPGA — 640 logic elements in a compact CSPBGA
The Lattice LCMXO2-640HC-4MG132C is a MachXO2 family FPGA with 640 logic elements (80 LABs/CLBs) and 79 user I/O, packaged in a 132-ball CSPBGA (8x8 mm). On-chip block RAM totals 18,432 bits, enough for small FIFOs, look-up tables, or configuration storage without external memory for many glue-logic and interface-bridging applications.
Package and board-fit considerations
The board requires a controlled-impedance stack-up and X-ray inspection after reflow to verify solder-joint integrity under the array. Surface-mount assembly with a standard lead-free profile is expected; the part is ROHS3 compliant. The 79 I/O are distributed across the BGA balls. For a new layout, the pin map should be cross-checked against the Lattice MachXO2 pinout guide — adjacent I/O banks can run at different VCCIO voltages within the 2.375-3.465 V range, which is useful for mixed-voltage interfaces.