Asynchronous 1 Mbit SRAM for legacy bus designs
The CY7C1018CV33-12VXIT: The part comes in a 32-SOJ (0.300" body width) surface-mount package, supplied in Tape & Reel. This is a volatile memory — data is retained only while power is applied — and it is designed for applications that require fast, simple read/write cycles without clock synchronization, such as cache buffers, FIFO implementations, and microcontroller data storage in telecom, industrial control, and test equipment.
The 12 ns access time and 12 ns write cycle time mean this SRAM can keep up with fast 8-bit microcontrollers and ASIC memory controllers without inserting wait states, as long as the controller's output hold times and setup windows are met. On a board that originally used a slower 15 ns or 20 ns part, dropping in this 12 ns device adds margin rather than risk — the bus timing closes more easily. The parallel interface is straightforward: address, data, chip enable, output enable, and write enable lines connect directly to a processor's external memory controller.
No new factory orders are being accepted; the only supply channel is independent distribution — surplus stock, new-old-stock (NOS), or broker-sourced material. There is no official Cypress replacement listed for this exact order code, so a pin-compatible drop-in must be evaluated on a case-by-case basis.