Lattice Semiconductor Corporation LX256B-5FN484C

ispGDX2 devices implement configurable data-path and control-signal connections between external pins. The family architecture uses GDX blocks and a Global Routing Pool, with sysIO banks at the device boundary. This makes the family suited to wide-bus multiplexing, control-signal distribution and programmable board-level interconnect.

Lattice specifies a lead-free 484-ball fpBGA for this exact model. LCDChip's existing package field is 484-BBGA; its package register maps that name to 484-BBGA.jpg. The catalog label is not a substitute for Lattice's 484-ball pin map, package drawing, ball pitch and land-pattern guidance.

Mechanical checks

• Confirm ball A1 orientation against the manufacturer pin map.
• Check the exact 484-ball footprint and reflow requirements.
• Verify lead-free package marking and handling for the actual lot.

The expected catalog JPG is absent locally and returns HTTP 404 on the production site. Restore and inspect the image before publication.

Lattice supplies an ispGDX2-256 484-fpBGA ball-assignment table. The groups below describe functions, not a complete ball-by-ball assignment. Use the exact manufacturer table and the implemented design's pin constraints.

Use the complete data sheet for operating limits, bank voltage compatibility, programming conditions, timing paths and package dimensions.

Lattice's discontinuation notice names LX256V-5FN484C as a recommended alternative and marks the package as pin-compatible with a footnote requiring different supply voltages. The V variant is a 3.3 V-core class, whereas this B variant is 2.5 V. Therefore, the alternative is not an electrical drop-in without a power and I/O-bank review. Recheck the configuration file, timing, pinout, board rails and qualification before substitution.

No internal alternative-product link is asserted without an exact LCDChip API catalog match and engineering approval.

Lattice Semiconductor's ispGDX2 family data sheet includes the exact LX256B-5FN484C ordering line and ispGDX2-256 484-fpBGA ball connections. Lattice's PCN09I-10 lists this ordering code among select mature devices slated for discontinuation. Consult those manufacturer documents and any later notices for a specific production or repair decision.

For an older discontinued ordering code, verify top marking, FN lead-free package designation, lot traceability, storage and moisture-sensitive handling. Compare the delivered part with the manufacturer ordering guide and the programmed design. The missing catalog image cannot establish the physical identity of a device.

Confirm 2.5 V core power sequencing, bank supplies and references, JTAG programming, design timing, full ball mapping and BGA assembly against the manufacturer's documentation. Treat the Lattice discontinuation notice as a lifecycle warning. Restore and verify the production 484-BBGA JPG before this page is published.