Semiconductor memory systems with on-die data buffering

摘要

A semiconductor memory system includes a first semiconductor memory die and a second semiconductor memory die. The first semiconductor memory die includes a primary data interface to receive an input data stream during write operations and to deserialize the input data stream into a first plurality of data streams, and also includes a secondary data interface, coupled to the primary data interface, to transmit the first plurality of data streams. The second semiconductor memory die includes a secondary data interface, coupled to the secondary data interface of the first semiconductor memory die, to receive the first plurality of data streams.

主权项

1. A memory module comprising:
a substrate; memory including
a first memory device, the first memory device having a primary interface for carrying out signal transfers with a memory controller via a primary bus, and a secondary interface;a second memory device, the second memory device including a data interface coupled to the secondary interface; wherein the memory is coupled to the substrate; and wherein data transfers between the second memory device and the memory controller are routed through the first memory device.