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DESCRIPTION

The Am2964B Dynamic Memory Controller (DMC) replaces

a dozen MSI devices by grouping several unique functions.

Two 8-bit latches capture and hold the memory address.

These latches and a clearable,8-bit refresh counter feed

into an 8-bit, 3-input, Schottky speed MUX for output to the

dynamic RAM address lines.

The same silicon chip also includes a special RAS decoder

and DRS buffer. Placing these functions on the same chip

minimizes the time skew between output functions which

would otherwise be separate MSI chips,and therefore

allows a faster memory cycle time by the amount of skew

eliminated.