9Mbit synchronous SDR SRAM — 166 MHz, 3.5 ns access
The CY7C1354B-166BGC is a 9Mbit synchronous SRAM organized as 256K x 36, clocked at 166 MHz with a 3.5 ns access time. This is a single-data-rate (SDR) part — it transfers one data word per clock edge, making it a fit for mid-speed cache or buffer applications where the controller does not need the double-data-rate bandwidth.
Package and board-fit — 119-ball PBGA
Housed in a 119-ball PBGA (14x22 mm body), this is a fine-pitch BGA that demands a multi-layer PCB for fan-out. The 3.5 ns access time at 166 MHz means the address-to-data latency is about half a clock cycle — the controller must meet the setup/hold windows at the SRAM's inputs, which the datasheet's AC timing tables define per the 166 MHz speed bin.