8

Memory Peripheral Circuits

8.1    Introduction

DRAM organization has been described in Chapter 1. Among the constituents, the core occupies most of the chip area because of the large number of cells replicated in it, whereas peripherals are around it. The shape of the core is either square or rectangular, which makes the dimensions of the row and column decoders and sense amplifiers/drivers well matched with it. It results in proximity between the core and the decoders/sense amplifiers; therefore interconnections occupy less chip space and negligible delay occurs in signal transfer with the core. For the sake of reducing the core (cell) size and improving its performance, some of the performance standards set for a general logic design ...

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