Abstract:
A memory module includes multiple data ports and multiple memory devices. The data ports transceive corresponding data respectively. The memory devices include memory devices of a first set belonging to at least one rank directly connected to a corresponding data port among the data ports and memory devices of a second set belonging to at least another rank connected to the data port by passing via a corresponding memory device among the memory devices of the first set. Each of the memory devices of the first set responses to at least one chip selection signals to provide magnetic data from its memory core and at least one of other data from a memory core of one of the memory devices of the second set to the data port as the corresponding data.
Abstract:
PURPOSE: A DRAM package, a DRAM module, a graphic module and a multimedia device including the same are provided to reduce the occupation area of the DRAM package by arranging solder balls in the row direction and the column direction at a same distance. CONSTITUTION: A DRAM package(400) includes a DRAM package main body(410) and a ball grid array(420). The ball grid array is formed on the lower surface of the DRAM package main body. The ball grid array includes a plurality of solder balls. The solder balls connect the DRAM package main body and a printed circuit board. The solder balls are made of conductive materials.
Abstract:
A memory chip package according to the present invention includes memory chips of a stacked structure. The memory chips input/output an optical signal through an optical line having a via which penetrates the memory chips electrically connected to each other. The memory chips input/output optical signals of different wavelengths, respectively. The memory chips include a photoelectric converter, respectively, receive the optical signals of corresponding wavelengths, convert them into electric signals or receive electric signals and convert them into optical signals of corresponding wavelengths.
Abstract:
작은 뱅뱅 지터를 갖는 지연동기 루프 회로 및 이의 지터 감소방법이 개시된다. 상기 지연동기 루프 회로는 상기 지연동기 루프 회로가 초기 락(initial locke)된 이후 위상 혼합기에서 위상혼합되는 지점을 조절하기 위한 보조 위상 쉬프터(auxiliary phase shifter)를 구비하는 것을 특징으로 한다. 상기 지연동기 루프 회로에서는, 상기 지연동기 루프 회로가 초기 락된 이후 위상혼합이 두 신호들의 제1에지들중 어느 하나의 에지 근처에서 이루어 질 때는, 위상혼합되는 지점이 두 신호들의 제1에지들의 중간 근처에서 이루어지도록 조절된다. 그 결과 상기 지연동기 루프 회로에서는 뱅뱅 지터의 양이 감소되는 효과가 있다.