
基本信息:
- 专利标题: LOOK-UP TABLE CIRCUITS AND FIELD PROGRAMMABLE GATE ARRAY
- 专利标题(中):查看表电路和现场可编程门阵列
- 申请号:US13238020 申请日:2011-09-21
- 公开(公告)号:US20120074984A1 公开(公告)日:2012-03-29
- 发明人: Hideyuki SUGIYAMA , Tetsufumi Tanamoto , Takao Marukame , Mizue Ishikawa , Tomoaki Inokuchi , Yoshiaki Saito
- 申请人: Hideyuki SUGIYAMA , Tetsufumi Tanamoto , Takao Marukame , Mizue Ishikawa , Tomoaki Inokuchi , Yoshiaki Saito
- 申请人地址: JP TOKYO
- 专利权人: KABUSHIKI KAISHA TOSHIBA
- 当前专利权人: KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址: JP TOKYO
- 优先权: JP2010-217799 20100928
- 主分类号: H03K19/177
- IPC分类号: H03K19/177 ; H03K5/00
摘要:
A look-up table circuit according to an embodiment includes: a variable resistance circuit including variable resistance devices and selecting a variable resistance device from the variable resistance devices based on an input signal; a reference circuit having a resistance value between the largest resistance value and the smallest resistance value of the variable resistance circuit; a first n-channel MOSFET including a source connected to a terminal of the variable resistance circuit and a gate connected to a drain; a second n-channel MOSFET including a source connected to a terminal of the reference circuit and a gate connected to the gate of the first n-channel MOSFET; a first current supply circuit to supply a current to the variable resistance circuit; a second current supply circuit to supply a current to the reference circuit; and a comparator comparing voltages at a first input terminal and a second input terminal.
摘要(中):
根据实施例的查找表电路包括:可变电阻电路,包括可变电阻器件,并且基于输入信号从可变电阻器件中选择可变电阻器件; 参考电路,其具有可变电阻电路的最大电阻值和最小电阻值之间的电阻值; 第一n沟道MOSFET,其包括连接到可变电阻电路的端子的源极和连接到漏极的栅极; 第二n沟道MOSFET,其包括连接到参考电路的端子的源极和连接到第一n沟道MOSFET的栅极的栅极; 用于向可变电阻电路提供电流的第一电流供应电路; 第二电流供应电路,用于向参考电路提供电流; 以及比较器,用于比较第一输入端和第二输入端的电压。
公开/授权文献:
- US08373437B2 Look-up table circuits and field programmable gate array 公开/授权日:2013-02-12
IPC结构图谱:
H | 电学 |
--H03 | 基本电子电路 |
----H03K | 脉冲技术 |
------H03K19/00 | 逻辑电路,即,至少有两个输入作用于一个输出的;倒向电路 |
--------H03K19/01 | .提高开关速度的改进 |
----------H03K19/173 | ..应用基本逻辑电路作组件的 |
------------H03K19/177 | ...矩阵式排列的 |