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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 (IDT 72605)

? 512 x 18 x 2 organization (IDT 72615)

? 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), 68-pin PGA and 68-pin PLCC

? Industrial temperature range (-40oC to +85oC) is

available, tested to military electrical specifications