2 Gbit NOR Flash on a 133 MHz Quad I/O bus
The Micron MT25QL02GCBB8E12-0SIT is a 2 Gbit serial NOR Flash memory organized as 256M x 8 bits, accessed over a Quad I/O SPI interface clocked at 133 MHz.
Write-cycle timing and memory organization
Page program time is 2.8 ms typical; a full-word (256-byte) write cycle runs 8 ms. That matters if the design does frequent in-system updates or wear-levels a small number of sectors — the write latency is the bottleneck, not the read speed. The 256M x 8 organization means the part is byte-addressable at the page level, which is standard for NOR Flash used for execute-in-place (XIP) code storage.
Lifecycle and sourcing posture
It is ROHS3 compliant. No second-source is listed in the official cross-reference, but the sibling MT25QL01GBBB8E12-0SIT (1 Gbit, same package and interface) is a density-down alternative if the firmware fits.