Invention Grant
- Patent Title: Command-triggered on-die termination
- Patent Title (中): 命令触发的片上终止
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Application No.: US14560357Application Date: 2014-12-04
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Publication No.: US09135206B2Publication Date: 2015-09-15
- Inventor: Kyung Suk Oh , Ian P. Shaeffer
- Applicant: Rambus Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: Rambus Inc.
- Current Assignee: Rambus Inc.
- Current Assignee Address: US CA Sunnyvale
- Agent Charles Shemwell
- Main IPC: H03K17/16
- IPC: H03K17/16 ; G06F13/40 ; G11C11/4093 ; H03K19/0175 ; G11C11/401 ; H03K19/00

Abstract:
An integrated circuit device transmits to a dynamic random access memory (DRAM) one or more commands that specify programming of a digital control value within the DRAM, the digital control value indicating a termination impedance that the DRAM is to couple to a data interface of the DRAM in response to receiving a write command and during reception of write data corresponding to the write command, and that the DRAM is to decouple from the data interface after reception of the write data corresponding to the write command. Thereafter, the integrated circuit device transmits to the DRAM a write command indicating that write data is to be sampled by a data interface of the DRAM during a first time interval and that cause the DRAM to couple the termination impedance to the data interface during the first time interval and decouple the termination impedance from the data interface after the first time interval.
Public/Granted literature
- US20150084672A1 COMMAND-TRIGGERED ON-DIE TERMINATION Public/Granted day:2015-03-26
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