8 Mbit MRAM — the non-volatile RAM that doesn't wear out
The M3008316045NX0IBCY: MRAM stores data magnetically, not as charge — no erase cycles, no write wear, no battery backup needed. The data persists through power loss with the same instant-on behaviour as SRAM.
Parallel interface and supply — what the bus needs
Word and page writes complete in 45 ns — the same cycle time as the read access, which simplifies the controller timing state machine.
48-FBGA footprint — layout and rework notes
The 48-ball LFBGA measures 10x10 mm with a 0.8 mm ball pitch — a standard 4-layer board with via-in-pad or dog-bone fan-out handles the breakout. The tray package means the parts arrive in anti-static matrix trays, not tape-and-reel — plan for pick-and-place nozzle changeover if the line runs reel-fed parts.
Active production — no end-of-life clock ticking
The MRAM technology is inherently radiation-tolerant compared to floating-gate memories, which matters for industrial and infrastructure equipment that sees occasional neutron flux.