Active 512 Mbit parallel NOR flash for industrial code storage
The S29GL512S11DHV020 is an active-production 512 Mbit parallel NOR flash from Infineon's GL-S series, organized as 32M x 16 bits, with a 110 ns access time and a 2.7 V supply rail. Parallel interface means the memory sits directly on the processor's external bus with no serial translation latency — the 110 ns access time is the random-read latency the CPU sees on every fetch, so it sets the worst-case instruction-fetch timing for the boot loader and real-time routines.
Housed in a 64-ball FBGA (0.80 mm pitch typical for this density), surface-mount tray delivery. The 2.7 V supply is a single-rail design — no separate Vpp or VccQ needed for the core and I/O. The 60 ns word/page write cycle time means page programming completes in 60 ns after the initial command sequence; for a 512-word page, the total write time per page is dominated by the internal program pulse, not the bus cycle.