Buffer Repeaters
نویسنده
چکیده
Repeaters are widely used to combat the quadratic delay of long on-chip wires. A conventional repeater is a CMOS inverter placed periodically along the long wire. This design has two drawbacks. The wire must have an even number of repeaters to preserve signal polarity. This forces the designer to sometimes use a suboptimal number of repeaters. It is also awkward when a wire branches because repeaters must be placed in such a way that all branches have an even number of repeaters. The second drawback is that many repeaters are required. For floorplanning reasons, repeaters tend to be grouped into “gas stations” which may not be immediately under the best wire route. Thus, longer wires are required to reach the gas stations.
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