10 ns access time — bus timing margin for a 5V async memory
The 10 ns write cycle time matches the read access, so back-to-back operations run at full speed — no dead cycles for bus turnaround.
The industrial grade means the timing parameters are guaranteed across the full temperature range, not just at 25°C — important when the access time budget tightens at temperature extremes.
Package and footprint — 32-TSOP I
Housed in a 32-TSOP I (0.724" body width, 18.40 mm), this is a standard thin small-outline package with a JEDEC footprint that matches other 32-pin TSOP I SRAMs from the same era. The surface-mount package is reflow-compatible; MSL rating is typical for this class — verify the floor-life window before opening the moisture barrier bag.
The base product number CY7C109 covers multiple speed and temperature variants; the -10ZXI suffix selects the 10 ns industrial-grade version in TSOP I.