SN74ABT7820 512 × 18 × 2 STROBED BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY SCAS206D – AUGUST 1991 – REVISED APRIL 1998 D Member of the Texas Instruments Widebus ™ Family D Advanced BiCMOS Technology D Independent Asynchronous Inputs and Outputs D Two Separate 512 × 18 FIFOs Buffering Data in Opposite Directions D Programmable Almost-Full/Almost-Empty Flags D Empty, Full, and Half-Full Flags D Fast Access Times of 12 ns With a 50-pF Load and Simultaneous Switching Data Outputs D Supports Clock Rates up to 67 MHz D Package Options Include 80-Pin Quad Flat (PH) and 80-Pin Thin Quad Flat (PN) Packages PH PACKAGE (TOP VIEW) GBA SBA GND LDCKA UNCKB EMPTYB VCC VCC VCC VCC EMPTYA UNCKA LDCKB GND ...

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