DESCRIPTION:
The IDT72605 and IDT72615 are very high-speed, low-power bidirectional First-In, First-Out (FIFO) memories, with synchronous interface for fast read and write cycle times. The SyncBiFIFO™ is a data buffer that can store or retrieve information from two sources simultaneously. Two Dual-Port FIFO memory arrays are contained in the SyncBiFIFO; one data buffer for each direction.
   
FEATURES:
• Two independent FIFO memories for fully bidirectional data
    transfers
• 256 x 18 x 2 organization (IDT72605)
• 512 x 18 x 2 organization (IDT72615)
• Synchronous interface for fast (20ns) read and write cycle times
• Each data port has an independent clock and read/write control
• Output enable is provided on each port as a three-state control
    of the data bus
• Built-in bypass path for direct data transfer between two ports
• Two fixed flags, Empty and Full, for both the A-to-B and the B-to-A FIFO
• Programmable flag offset can be set to any depth in the FIFO
• The synchronous BiFIFO is packaged in a 64-pin TQFP (Thin
    Quad Flatpack) and 68-pin PLCC
• Industrial temperature range (–40°C to +85°C)
• Green parts available, see ordering information