Synchronous FIFO for high-throughput buffering
The Renesas 72V245L10PFG is a synchronous FIFO from the 72V series, designed for high-speed data buffering in digital systems. It operates at a 100 MHz clock rate with a 6.5 ns access time, making it suitable for applications like packet buffering, data concentrators, and video line buffers where low-latency, deterministic data flow is critical. The 4K x 18 memory organization (72 Kbit total) provides a mid-depth buffer for bursty traffic, and the 18-bit width matches common DSP and FPGA datapaths without needing external width adaptation.
100 MHz clock and 6.5 ns access — what they mean on the bus
The 100 MHz data rate means this FIFO can sustain reads and writes at 100 million words per second, which is the typical ceiling for mid-range synchronous FIFOs. The 6.5 ns access time is the time from the rising clock edge to valid data on the output bus — a tight window that gives the receiving controller or FPGA enough setup margin at 100 MHz. If your system clock is slower, the margin only gets better; if you are pushing near 100 MHz, check that the controller's input hold time plus trace delay stays under 6.5 ns.
Expansion and flags — design flexibility
This FIFO supports depth and width expansion, so you can cascade multiple devices to build deeper or wider buffers without external glue logic. It also has programmable flags and full FWFT support. Note that retransmit capability is not available on this variant.
Lifecycle and sourcing
It is ROHS3 compliant, so it meets the latest environmental directives for EU and global markets.