72Mbit NoBL SRAM at 200 MHz — what this part delivers
The Infineon CY7C1474BV33-200BGC is a 72 Mbit synchronous SRAM organized as 1M x 72, running at a 200 MHz clock with a 3 ns access time. It belongs to the NoBL series, eliminating the dead cycle between read and write bus turns. The part operates from a 3.135 V to 3.6 V supply and is rated for the commercial temperature range of 0°C to 70°C. Housed in a 209-ball FBGA (14 mm x 22 mm), it is a surface-mount device intended for controlled indoor environments — server rooms, central offices, lab instrumentation — not extended or industrial temperature zones.
The CY7C1474BV33-200BGC is marked obsolete by Infineon.
NoBL architecture — why it matters for throughput
NoBL (No Bus Latency) means the SRAM does not insert a dead cycle when the bus switches from read to write or write to read. In a conventional synchronous SRAM, every bus-turn incurs one idle clock; NoBL eliminates that, sustaining full 200 MHz throughput on mixed-transaction traffic. That matters for packet-processing engines where read-modify-write sequences on descriptor rings or buffer headers are the common case, not the exception.