CMOS ASYNCHRONOUS FIFO WITH RETRANSMIT 1K x 9, 2K x 9, 4K x 9 Integrated Device Technology, Inc.
IDT72021 IDT72031 IDT72041 FEATURES: • First-In/First-Out Dual-Port memory • Bit organization – IDT72021—1K x 9 – IDT72031—2K x 9 – IDT72041—4K x 9 • Ultra high speed – IDT72021—25ns access time – IDT72031—35ns access time com – IDT72041—35ns access time • Easily expandable in word depth and/or width • Asynchronous and simultaneous read and write • Functionally equivalent to IDT7202/03/04 with Output Enable (OE ) and Almost Empty/Almost Full Flag (AEF ) • Four status flags: Full, Empty, Half-Full (single device mode), and Almost Empty/Almost Full (7/8 empty or 7/8 full in single...

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