18 Mbit synchronous SRAM for high-throughput buffer/cache
The Infineon CY7C1381KV33-133AXIT is an 18 Mbit synchronous SDR SRAM organized as 512K x 36, clocked at 133 MHz with a 6.5 ns access time. It operates from a 3.135 V to 3.6 V supply and is rated for -40°C to 85°C, suiting it for industrial networking equipment, telecom line cards, and DSP memory expansion where wide-word parallel access and deterministic latency are needed.
Lifecycle status — active, but verify last-time-buy windows
The manufacturer lists this part as Active, though the component record flags an EOL lifecycle stage. This discrepancy suggests the part may be in a transition phase — possibly a last-time-buy or NRND window. For BOM freeze planning, treat it as at-risk: secure a multi-year forecast quantity now and request a formal PCN from Infineon. We source it through independent distribution and quote against an RFQ; availability and current pricing are confirmed at quote time.