Invention Grant
- Patent Title: Semiconductor device having output driver
- Patent Title (中): 具有输出驱动器的半导体器件
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Application No.: US12708734Application Date: 2010-02-19
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Publication No.: US08436657B2Publication Date: 2013-05-07
- Inventor: Katsuhiro Kitagawa
- Applicant: Katsuhiro Kitagawa
- Applicant Address: JP Tokyo
- Assignee: Elpida Memory, Inc.
- Current Assignee: Elpida Memory, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Young & Thompson
- Priority: JP2010-002973 20100108
- Main IPC: H03K19/0175
- IPC: H03K19/0175 ; H03L7/06

Abstract:
To provide an output driver that outputs read data to outside and a mode register that sets a swing capability of the output driver. A transition start timing of the read data driven by the output driver is made relatively earlier when a swing capability of the output driver set by the mode register is set to be relatively large, and the transition start timing is relatively delayed when the swing capability of the output driver set by the mode register is set to be relatively small. With this configuration, a timing when the read data exceeds a threshold level can be caused to coincide with a desired timing regardless of the swing capability of the output driver.
Public/Granted literature
- US20110169527A1 SEMICONDUCTOR DEVICE HAVING OUTPUT DRIVER Public/Granted day:2011-07-14
Information query
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