DESCRIPTION:
The IDT723614 is a monolithic, high-speed, low-power CMOS bidirectional clocked FIFO memory. It supports clock frequencies up to 67MHz and has read access times as fast as 10ns. Two independent 64 x 36 dual-port SRAM FIFOs on board the chip buffer data in opposite directions.
   
FEATURES:
• Free-running CLKA and CLKB can be asynchronous or
    coincident (simultaneous reading and writing of data on a
    single clock edge is permitted)
• Two independent clocked FIFOs (64 x 36 storage capacity each)
    buffering data in opposite directions
• Mailbox bypass Register for each FIFO
• Dynamic Port B bus sizing of 36 bits (long word), 18 bits (word),
    and 9 bits (byte)
• Selection of Big- or Little-Endian format for word and byte bus
    sizes
• Three modes of byte-order swapping on port B
• Programmable Almost-Full and Almost-Empty flags
• Microprocessor interface control logic
• EFA, FFA, AEA, and AFA flags synchronized by CLKA
• EFB, FFB, AEB, and AFB flags synchronized by CLKB
• Passive parity checking on each port
• Parity generation can be selected for each port
• Supports clock frequencies up to 67 MHz
• Fast access times of 10 ns
• Available in 132-pin plastic quad flat package (PQF)
    or spacesaving 120-pin thin quad flat package (TQFP)
• Industrial temperature range (–40°C to +85°C) is available