Patent US5953278 - Data sequencing and registering in a four bit pre-fetch SDRAM

A memory device uses data circuitry to connect data lines extending from memory cell arrays to data signal bond pads. The data circuitry connect four data lines to one data signal bond pad. The data circuitry include data sequencer circuits, parallel data in circuits and serial data register circuits....http://www.google.co.uk/patents/US5953278?utm_source=gb-gplus-sharePatent US5953278 - Data sequencing and registering in a four bit pre-fetch SDRAM

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Data sequencing and registering in a four bit pre-fetch SDRAM