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公开(公告)号:US09378808B2
公开(公告)日:2016-06-28
申请号:US14603818
申请日:2015-01-23
发明人: Nan-Chun Lien , Chen-Wei Lin , Chao-Kuei Chung , Li-Wei Chu , Yuh-Jiun Lin , Yu-Wei Yeh , Wei-Chiang Shih
IPC分类号: G11C11/419
CPC分类号: G11C11/419 , G11C8/16 , G11C11/418
摘要: A pulse width modulation device for use in an N-ports random access memory having a plurality of word line sets, wherein a specified word line set comprises N port word lines. The pulse width modulation device comprises a status detecting device and a clock signal generator. The status detecting device is coupled to the N port word lines having a first and a second port word line, and outputs a first control signal when both the voltage values of the first and second port word lines are within a first level range. The clock signal generator is coupled to the status detecting device and the specified word line set, and generates and outputs a first clock signal to the specified word line set, wherein a duration of the first clock signal kept within the first level range is variable in response to the first control signal.
摘要翻译: 一种在具有多个字线组的N端口随机存取存储器中使用的脉冲宽度调制装置,其中指定的字线组包括N个端口字线。 脉宽调制装置包括状态检测装置和时钟信号发生器。 状态检测装置与具有第一和第二端口字线的N个端口字线耦合,并且当第一和第二端口字线的电压值都在第一电平范围内时,输出第一控制信号。 时钟信号发生器耦合到状态检测装置和指定字线组,并且产生并输出到指定字线组的第一时钟信号,其中保持在第一电平范围内的第一时钟信号的持续时间是可变的 响应于第一控制信号。