512 Mbit parallel NOR Flash for XIP and firmware storage
The Cypress S29GL512S10TFI010 is a 512 Mbit parallel NOR Flash memory from the GL-S family, organized as 32M x 16 bits. It uses a standard parallel interface for direct code execution (XIP) and firmware storage in embedded systems. The 100 ns access time is the speed grade that determines read-cycle timing with the host controller — at this density and voltage range, 100 ns is the baseline speed bin for the GL-S series.
100 ns access time and bus timing margin
In practice, this sets the fastest clock rate at which the host can read the Flash without wait states. Compared to the sibling S29GL512T11TFIV20 (110 ns access time, 1.65 V supply), this part offers a 10 ns faster access at the cost of a higher minimum supply voltage (2.7 V vs 1.65 V). The 60 ns write cycle time per word or page applies to program and erase operations — that timing is identical across the GL-S and GL-T families at this density.
56-TSOP footprint and board integration
The 56-TSOP package (0.724 inch body width, 18.40 mm) is a surface-mount form factor common for parallel NOR Flash in this density tier. The 32M x 16 organization maps directly to a 16-bit data bus — typical for ARM Cortex-M or PowerQUICC host processors that boot from external parallel Flash.