The CY7C4251-10JXC is officially obsolete per Infineon's lifecycle status. For existing BOM lines, this part is sourced through independent distribution channels — quantities are confirmed per RFQ, and no minimum order volume is assumed.
Synchronous FIFO — 100MHz pipeline
This is a synchronous FIFO organized as 8K x 9 bits (72K total), clocked at 100 MHz with an 8 ns access time — the pipeline architecture eliminates the dead cycles of asynchronous FIFOs on back-to-back reads. The 9-bit width (8 data + 1 parity/control) suits applications where a ninth bit carries a tag, command, or odd-parity check alongside the byte-wide data word. Programmable flags are supported for almost-full/almost-empty thresholds, letting the controller schedule DMA bursts before the FIFO stalls.
Package and supply rails
Rated for commercial temperature range (0°C to 70°C) — suitable for indoor equipment and controlled environments, not extended or industrial temp applications.