MX25L25645GM2I-08G

MX25L25645GM2I-08G is a Macronix 256-Mbit serial NOR flash in an SOP-8 package, running from 2.7 V to 3.6 V with single, dual and quad SPI plus QPI and DTR transfer modes, rated for 100,000 program/erase cycles over -40 °C to +85 °C — firmware and code storage for industrial, networking and consumer designs that need 32 MB in the compact 8-pin footprint. Read the clock figures by mode: SCLK reaches 133 MHz in the enhanced mode, while standard Fast Read single-I/O operation is 120 MHz — two modes, not a conflict. The ordering code is the selection point and the usual mistake: M2 denotes the 8-pin SOP 200 mil package (the M-suffix siblings are 300 mil SOP-16 with a different footprint), I is the industrial temperature grade, and -08 denotes Factory Mode support — it is not a speed grade, so do not trade it against the -10G standard-mode codes as if it were one. Macronix's own PCN shows this exact code entering first shipment on 2026-08-01, and its ordering table is in datasheet Rev. 2.0. Parameters verified against Macronix documentation.