The 7201LA15JG: For a BOM line that already qualifies this FIFO, there is no forced redesign horizon.
Asynchronous FIFO — 4.5 Kbit with 15 ns access
This is a 4.5 Kbit (512 x 9) asynchronous FIFO with a 15 ns access time and a 40 MHz data rate. Asynchronous architecture means the read and write clocks are independent — no external clock synchronisation needed for the handshake. The 9-bit width (8 data + 1 parity/control) suits byte-wide datapaths that need an extra flag bit. Retransmit capability is built in — the FIFO can replay data from the beginning without a full reset, useful for streaming applications where a downstream error triggers a retransmission request.
32-PLCC J-Lead — surface-mount footprint
Housed in a 32-lead PLCC with J-bend leads (package code 32-LCC), the body measures 14 x 11.46 mm (supplier device package 32-PLCC). The J-lead footprint is a standard surface-mount pattern — no through-hole tooling, but the lead pitch and pad layout must match the PLCC-32 land pattern on the PCB.
ROHS3 compliance — no exemption expiry
Renesas lists the 7201LA15JG as ROHS3 compliant — the most current RoHS directive without phthalate exemptions that are subject to sunset dates.
