The Infineon CY7C1059DV33-10ZSXI is a 8 Mbit asynchronous SRAM organized as 1M x 8, with a 10 ns access time and a parallel interface. It operates from 3 V to 3.6 V and is rated for -40°C to 85°C, making it suited for industrial-temperature applications like factory automation controllers, telecom line cards, and test equipment that need fast, byte-wide scratchpad memory.
10 ns access time — what it means for the bus
The 10 ns access time and 10 ns write cycle time allow back-to-back read or write cycles at full speed.
Industrial temperature range and package
The -40°C to 85°C operating range qualifies this SRAM for outdoor telecom cabinets, factory-floor motor drives, and engine-bay-adjacent electronics without needing a military-grade part. The 44-TSOP II package (0.400", 10.16 mm width) is a common SRAM footprint; verify that your PCB layout matches the 44-pin TSOP II land pattern before committing the BOM.
Lifecycle and sourcing reality
The CY7C1059DV33-10ZSXI is marked as EOL hot, meaning Infineon has announced end-of-life. For existing BOM lines, this part is sourced through independent distribution on a last-time-buy or surplus basis.