公开(公告)号：US20130286753A1

公开(公告)日：2013-10-31

申请号：US13926098

申请日：2013-06-25

Applicant: Renesas Electronics Corporation

Inventor： Binhaku TARUISHI ,  Hiroki MIYASHITA ,  Ken SHIBATA ,  Masashi HORIGUCHI

IPC: G11C7/10

CPC classification number: G11C7/1084 ,  G11C7/1066 ,  G11C7/1078 ,  G11C7/1093 ,  G11C7/1096

Abstract: A data input buffer is changed from an inactive to an active state after the reception of instruction for a write operation effected on a memory unit. The input buffer is a differential input buffer having interface specs based on SSTL, for example, which is brought to an active state by turning on a power switch to cause a through current to flow and receives a signal therein while immediately following a small change in small-amplitude signal. Since the input buffer is brought to the active state only when the write operation's instruction for the memory unit is provided, it is rendered inactive in advance before the instruction is provided, whereby wasteful power consumption is reduced. In another aspect, power consumption is reduced by changing from the active to the inactive state in a time period from a write command issuing to a next command issuing.

Abstract translation: 在对存储器单元进行的写入操作的指​​令的接收之后，数据输入缓冲器从非活动状态改变为活动状态。 输入缓冲器是具有例如基于SSTL的接口规格的差分输入缓冲器，其通过接通电源开关而使其通过电流流动并接收信号而进入激活状态，同时紧随着小的变化 小振幅信号。 由于只有当提供了对存储器单元的写操作指令时，输入缓冲器才进入活动状态，所以在提供指令之前预先使输入缓冲器无效，从而减少浪费的功耗。 在另一方面，通过在从写入命令发布到下一个命令发布的时间段内从主动状态变为非活动状态来降低功耗。

公开(公告)号：US20140140145A1

公开(公告)日：2014-05-22

申请号：US14164214

申请日：2014-01-26

Applicant: Renesas Electronics Corporation

Inventor： Binhaku TARUISHI ,  Hiroki MIYASHITA ,  Ken SHIBATA ,  Masashi HORIGUCHI

IPC: G11C7/10

CPC classification number: G11C7/1084 ,  G11C7/1066 ,  G11C7/1078 ,  G11C7/1093 ,  G11C7/1096

Abstract: A data input buffer is changed from an inactive to an active state after the reception of instruction for a write operation effected on a memory unit. The input buffer is a differential input buffer having interface specs based on SSTL, for example, which is brought to an active state by turning on a power switch to cause a through current to flow and receives a signal therein while immediately following a small change in small-amplitude signal. Since the input buffer is brought to the active state only when the write operation's instruction for the memory unit is provided, it is rendered inactive in advance before the instruction is provided, whereby wasteful power consumption is reduced. In another aspect, power consumption is reduced by changing from the active to the inactive state in a time period from a write command issuing to a next command issuing.

Abstract translation: 在对存储器单元进行的写入操作的指​​令的接收之后，数据输入缓冲器从非活动状态改变为活动状态。 输入缓冲器是具有例如基于SSTL的接口规格的差分输入缓冲器，其通过接通电源开关而使其通过电流流动并接收信号而进入激活状态，同时紧随着小的变化 小振幅信号。 由于只有当提供了对存储器单元的写操作指令时，输入缓冲器才进入活动状态，所以在提供指令之前预先使输入缓冲器无效，从而减少浪费的功耗。 在另一方面，通过在从写入命令发布到下一个命令发布的时间段内从主动状态变为非活动状态来降低功耗。