IDT7204L30TDB

The IDT7204L30TDB is a CMOS asynchronous first-in, first-out (FIFO) memory manufactured by Renesas Electronics (from the acquired IDT portfolio), belonging to the 7200/7201/7202 family. It provides a 4,096-word by 9-bit storage array with independent read and write operations controlled solely by request and acknowledge signals, eliminating the need for a common clock. Key architectural features include full, empty, and half-full status flags to prevent data overflow or underrun, and inherent expandability in both word width and depth through simple cascading, allowing designers to build larger buffer structures without external logic. The asynchronous design enables seamless data transfer between subsystems operating at different speeds, with access times determined by the device’s specified grade.

Engineers deploy this FIFO in applications demanding deterministic data buffering and rate adaptation, such as digital signal processing chains, high-speed data acquisition front‑ends, industrial automation controllers, radar and avionics systems, and secure military communication links where data integrity under asynchronous conditions is critical. The part is housed in a CDIP (ceramic dual in-line package), offering a hermetically sealed, robust enclosure suitable for extended-temperature and high-reliability environments, consistent with defense and aerospace requirements. From a procurement standpoint, designers should evaluate the mature lifecycle status of the 7200-series FIFOs and confirm ongoing manufacturer support, as shifts in supply can affect long-term program sustainment. Sourcing through authorized distributors is essential to ensure traceability and component authenticity, particularly for high‑reliability applications where counterfeit risk must be mitigated.