Last Buy — planning the BOM line
Infineon has placed the CY7C1357C-133AXC into Last Buy status — the manufacturer will not support new designs with this order code, and remaining inventory is finite. For an existing BOM that already qualifies this part, the Last Buy window is the time to secure lifetime-buy quantities or identify a migration path.
Organised as 512K words by 18 bits, the 9Mbit array gives you 18-bit-wide data bus access — a natural fit for parity or ECC applications where the extra two bits carry the check code alongside a 16-bit word. The 133 MHz clock frequency and 6.5 ns access time mean the part can sustain a new read or write every 7.5 ns in pipelined mode — the limiting factor for throughput is the bus turnaround, not the core access. Synchronous SDR interface with a parallel memory bus: all control, address, and data signals latch on the rising clock edge, so the timing closure at the PCB level depends on matching trace lengths across the 18-bit data path plus the address and control lines.
NoBL series — what the pipeline architecture delivers
The NoBL (No Bus Latency) series eliminates the dead bus cycle between read and write operations — consecutive reads and writes can be issued on every clock cycle without an idle turn-around cycle, which lifts effective throughput in mixed-read/write traffic patterns common in network buffers and telecom line cards.