LFE5UM-25F-6BG381C

LFE5UM-25F-6BG381C is an ECP5-5G FPGA from Lattice Semiconductor in a 381-ball caBGA (17 x 17 mm, 0.8 mm pitch) — for connectivity, control-plane and video or protocol bridging that needs gigabit serial links at a logic-device price point. The selection point is the SERDES: this M-code device adds one dual-channel SERDES block (two channels, up to 3.2 Gb/s) to the 25F density — 24K LUTs, 1,008 Kb of embedded memory in 56 sysMEM blocks, 194 Kb of distributed RAM, 28 18x18 multipliers, two PLLs, two DLLs and 197 user I/O on a 1.1 V core. It is the SERDES twin of the LFE5U-25F-6BG381C: same density, package and I/O, differing in the transceiver block. Selection advice: choose the LFE5UM code when your bridging protocol runs over the SERDES channels, and the plain LFE5U code when it does not — the transceiver is the whole reason for the M branch, and the two are not interchangeable in a configured design. This code is the -6 speed grade in the commercial temperature version; confirm transceiver line rate and -6 fabric timing against your protocol and closure targets. Parameters verified against the Lattice ECP5/ECP5-5G family datasheet (FPGA-DS-02012).