The 400 MHz clock rate delivers back-to-back read and write bursts with no dead cycles between bus turns — the QDR II+ interface eliminates the turnaround penalty that standard SRAMs incur when switching from read to write. That matters for high-throughput pipelines like network packet buffers, DSP coefficient stores, or test-equipment waveform memories where the bus must stay full every cycle.
Package and layout — 165-ball FBGA
This part carries a Last Buy status. That means Infineon has stopped taking blanket orders and is running a final procurement window — once that closes, the only channel is surplus or broker stock. If you have a production run that needs this exact density and speed grade, the decision is whether to buy lifetime buy quantities now or qualify a replacement.