64Kbit dual-port SRAM — 20 ns asynchronous access
The Infineon (formerly Cypress) CY7C024AV-20AXCT is a 64Kbit dual-port asynchronous SRAM organized as 4K x 16. Its 20 ns access time means two independent processors or controllers can each read or write any location within a single clock cycle at up to 50 MHz, with no arbitration overhead — the dual-port architecture handles simultaneous access via the BUSY flag. This part is typically used in shared-memory systems like multiprocessor buffers, video frame stores, and telecom line cards where two buses need to exchange data without wait-state penalties.
A 20 ns access time means the SRAM can complete a read or write cycle in 20 ns worst-case, matching a 50 MHz asynchronous bus without inserting wait states. For a system architect pairing this with a 40 MHz DSP or a 33 MHz PCI bridge, that headroom covers PCB trace delay and capacitive loading on the 16-bit data bus.
The CY7C024AV-20AXCT is officially marked obsolete. Cypress (now Infineon) no longer manufactures this specific variant. No direct factory lead time applies.
Supply and temperature — fit check
If your board was originally laid out for a 5 V dual-port SRAM, this part will not work without a regulator change. For extended-temperature requirements, Infineon offers industrial-grade (-40°C to 85°C) variants in the same family — check the CY7C024AV suffix options.