The IDT723611 is a monolithic, high-speed, low-power, CMOS Synchronous (clocked) FIFO memory which supports clock frequencies up to 67MHz and has read access times as fast as 10ns. The 64 x 36 dual-port FIFO buffers data from Port A to Port B. The FIFO has flags to indicate empty and full conditions, and two programmable flags, Almost-Full (AF) and Almost-Empty (AE), to indicate when a selected number of words is stored in memory. Communication between each port can take place through two 36-bit mailbox registers. Each