发明授权
US08625371B2 Memory component with terminated and unterminated signaling inputs
有权
具有终止和未终止信号输入的存储器组件
- 专利标题: Memory component with terminated and unterminated signaling inputs
- 专利标题(中): 具有终止和未终止信号输入的存储器组件
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申请号: US13923634申请日: 2013-06-21
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公开(公告)号: US08625371B2公开(公告)日: 2014-01-07
- 发明人: Frederick A. Ware , Ely K. Tsern , Richard E. Perego , Craig E. Hampel
- 申请人: Rambus Inc.
- 申请人地址: US CA Sunnyvale
- 专利权人: Rambus Inc.
- 当前专利权人: Rambus Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理商 Charles Shemwell
- 主分类号: G11C7/00
- IPC分类号: G11C7/00
摘要:
A memory component has a signaling interface, data input/output (I/O) circuitry, command/address (CA) circuitry and clock generation circuitry. The signaling interface includes an on-die terminated data I/O and an unterminated CA input. The data I/O circuitry is dedicated to sampling write data bits at the data I/O timed by a strobe signal and to transmitting read data bits timed by a first clock signal, each of the write and read data bits being valid for a bit time at the data I/O. The CA circuitry samples CA signals at the CA input timed by a second clock signal, the CA signals indicating read and write operations to be performed within the memory component. The clock generation circuitry generates the first clock signal with a phase that establishes alignment between a leading edge of the bit time for each read data bit and a respective transition of the second clock signal.
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