IDT72V275L15PFI

The IDT72V275L15PFI is a high-density synchronous FIFO (First-In, First-Out) memory device manufactured by Renesas Electronics, belonging to the 3.3 V CMOS SuperSync family and organized as a 64K × 18-bit buffer. This device provides independent read and write ports with dedicated clock inputs, enabling flexible data transfer between systems operating on different clock domains. A 15 ns cycle time supports high-speed operation, and on-chip features such as programmable almost-empty and almost-full flags, retransmit capability, and byte-symmetric architecture simplify depth expansion and bus-matching designs. The 18-bit word width makes the FIFO suitable for parity-enabled or wider data path architectures without external glue logic.

Applications for the 72V275 family span defense, aerospace, industrial automation, and telecom infrastructure, where the device acts as a rate buffer in digital signal processing chains, data acquisition front ends, or packet switching line cards. In mission-critical systems, it provides deterministic latency and back-pressure management between processors, FPGAs, or high-speed ADCs and DACs. The “I” suffix denotes an industrial temperature range of –40 °C to +85 °C, making the device appropriate for extended-environment deployments without requiring full military-grade screening. As a legacy IDT product now maintained under Renesas, lifecycle continuity should be evaluated for long-term programs; engineers designing for sustained availability may need to consider alternative sourcing strategies or last-time-buy planning. The TQFP package offers a compact, surface-mount footprint suitable for dense board layouts while ensuring reliable soldering and inspection for high-reliability manufacturing flows.