128 Mbit parallel NOR flash in 56-TSOP
The S29GL128S10TFIV10 is a 128 Mbit parallel NOR flash from Infineon's GL-S family, organized as 8M x 16 bits. The 100 ns random access time sets the bus timing window for the host memory controller — the read cycle must accommodate this ceiling for reliable code execution. NOR flash is the standard for code-shadowing and execute-in-place (XIP) in embedded systems. The parallel interface delivers sustained read throughput without the command overhead of serial flash, suiting it for boot firmware, FPGA configuration storage, and real-time code execution where deterministic access latency matters.
Supply and temperature envelope
The 100 ns access time is specified at the minimum VCC; at higher supply voltages the internal timing margins improve. The 60 ns word/page write cycle time means programming a full 256 KB sector takes roughly 2.6 seconds at the page write rate — budget this into the firmware update window.
Package and board-fit constraints
Housed in a 56-TFSOP (0.724" body width, 18.40 mm) supplied as a 56-TSOP, the package footprint is standard for parallel NOR flash in this density class. The 0.50 mm pin pitch demands a controlled-impedance layout if the bus runs above 40 MHz — the 100 ns access time corresponds to a 10 MHz read cycle, so signal-integrity margins are generous for most designs. Store the reels in a dry cabinet below 10% RH if the seal is opened.
Lifecycle and compliance status
ROHS3 compliant (EU 2015/863), with no restricted substances including the four phthalates.