- 专利标题: Pre-delay on-die termination shifting
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申请号: US16392474申请日: 2019-04-23
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公开(公告)号: US10727840B2公开(公告)日: 2020-07-28
- 发明人: Kallol Mazumder
- 申请人: Micron Technology, Inc.
- 申请人地址: US ID Boise
- 专利权人: Micron Technology, Inc.
- 当前专利权人: Micron Technology, Inc.
- 当前专利权人地址: US ID Boise
- 代理机构: Perkins Coie LLP
- 主分类号: H03L7/08
- IPC分类号: H03L7/08 ; H03L7/081 ; G11C7/10 ; G11C7/22 ; G11C11/4076
摘要:
Memory systems can include shifting an ODT information signal prior to passing it through a cloned DLL delay line. The shifted ODT information passes through a cloned DLL delay line to move it into a DLL domain. Meanwhile, a clock gate can use a command indication to select whether to provide a clock signal to a DLL delay line. The clock gate can block the clock signal in the absence of a read or write operation and can pass the clock signal during read or write operations. When the DLL delay line receives the clock signal, it delays the clock signal to be in the DLL domain. By locating the ODT shifter before the cloned DLL delay line, as opposed to after it, the ODT shifter doesn't need a signal passed through the DLL delay line. Preventing the clock signal from passing through the DLL delay line reduces power consumption.
公开/授权文献
- US20190334531A1 PRE-DELAY ON-DIE TERMINATION SHIFTING 公开/授权日:2019-10-31
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