250 MHz QDR-II — pipeline bandwidth for the buffer
The CY7C1312KV18-250BZC is a 18 Mbit synchronous SRAM from Infineon (formerly Cypress) using the QDR-II architecture. It clocks at 250 MHz, delivering a double-data-rate read and write on separate ports — useful in network packet buffers, test equipment capture memory, and high-speed DSP look-up tables where back-to-back transactions cannot stall.
Supply and temperature — the design-in constraints
That tight tolerance means the supply regulator needs to hold within ±5 % under load; a generic 1.8 V LDO with 2 % initial accuracy and 50 mV dropout at the rated current is marginal — budget a 1.8 V switching regulator or a precision LDO with remote sense if the trace run is long. That limits deployment to indoor, climate-controlled environments — not for outdoor telecom cabinets or unventilated enclosures without active cooling.
Package and footprint — 165-FBGA
Housed in a 165-ball FBGA, 13×15 mm body.
Infineon lists the CY7C1312KV18-250BZC as Active. No EOL notice, no last-time-buy window open.