Invention Grant
US07920008B2 Data output clock generating circuit and method of generating data output clock of semiconductor memory apparatus
有权
数据输出时钟生成电路及半导体存储装置的数据输出时钟的生成方法
- Patent Title: Data output clock generating circuit and method of generating data output clock of semiconductor memory apparatus
- Patent Title (中): 数据输出时钟生成电路及半导体存储装置的数据输出时钟的生成方法
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Application No.: US12076621Application Date: 2008-03-20
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Publication No.: US07920008B2Publication Date: 2011-04-05
- Inventor: Geun-Il Lee
- Applicant: Geun-Il Lee
- Applicant Address: KR Gyeonggi-do
- Assignee: Hynix Semiconductor Inc.
- Current Assignee: Hynix Semiconductor Inc.
- Current Assignee Address: KR Gyeonggi-do
- Agency: Venable LLP
- Agent Jeffri A. Kaminski
- Priority: KR10-2005-0130436 20051227
- Main IPC: G06F1/04
- IPC: G06F1/04
Abstract:
A data output clock generating circuit for a semiconductor memory apparatus includes a rising data output clock generating unit configured to combine a rising clock with a rising clock extraction signal generated in response to a rising output enable signal and a falling clock, to generate a rising data output clock; and a falling data output clock generating unit configured to combine the falling clock with a falling clock extraction signal generated in response to a falling output enable signal and the rising clock, to generate a falling data output clock; wherein the rising data output clock generating unit and the falling data output clock generating unit are independently driven in parallel.
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