公开(公告)号：US09148277B2

公开(公告)日：2015-09-29

申请号：US14294372

申请日：2014-06-03

申请人： NovaChips Canada Inc.

发明人： Hong Beom Pyeon ,  Peter Gillingham

IPC分类号： H03D3/24 ,  H04L7/033 ,  G06F13/16

CPC分类号： H04L7/0331 ,  G06F13/1689 ,  H01L2224/32145 ,  H01L2224/48091 ,  H01L2224/48145 ,  H01L2224/48227 ,  H01L2224/73265 ,  H01L2225/06562 ,  Y02D10/14 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A system includes a memory controller and a plurality of semiconductor devices that are series-connected. Each of the devices has memory core for storing data. The memory controller provides a clock signal for synchronizing the operations of the devices. Each device includes a phase-locked loop (PLL) that is selectively enabled or disabled by a PLL enable signal. In each group, the PLLs of a selected number of devices are enabled by PLL enable signals and the other devices are disabled. The enabled PLL provides a plurality of reproduced clock signals with a phase shift of a multiple of 90° in response to an input clock signal. The data transfer is synchronized with at least one of the reproduced clock signals. In the devices of disabled PLLs, the data transfer is synchronized with the input clock signal. The enabled PLL and disabled PLL cause the devices to be the source and the common synchronous clocking, respectively. The devices can be grouped. The devices of one group can be structured by multiple chip packages.

摘要翻译： 系统包括存储器控制器和串联连接的多个半导体器件。 每个设备具有用于存储数据的存储器核心。 存储器控制器提供用于同步器件的操作的时钟信号。 每个器件包括被PLL使能信号选择性地使能或禁止的锁相环（PLL）。 在每个组中，选定数量的器件的PLL通过PLL使能信号使能，其他器件被禁止。 所启用的PLL响应于输入时钟信号提供多个具有90°的倍数的相移的再现时钟信号。 数据传输与再现的时钟信号中的至少一个同步。 在禁用PLL的器件中，数据传输与输入时钟信号同步。 使能的PLL和禁用的PLL分别使器件成为源和公共同步时钟。 设备可以分组。 一组的器件可以由多个芯片封装构成。