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    • 4. 发明公开
    • 안티 퓨즈 검출 회로
    • 防电感检测电路
    • KR1020000048888A
    • 2000-07-25
    • KR1019997002907
    • 1997-10-03
    • 마이크론 테크놀로지, 인크.
    • 캐스퍼,스티븐,엘.마틴,크리스,지.
    • G11C17/18
    • G11C17/18
    • PURPOSE: An anti-fuse detecting circuit is provided to detect an anti-fuse in a programmable device by measuring a voltage on a detecting node. CONSTITUTION: An anti-fuse detecting circuit including an anti-fuses and a latch(104) comprises of cross-coupled transistors(114,124). A first anti-fuse has a flat connected to GND and a second flat connected to a n-channel transistor to gain VCC, and n-channel transistor 's drain is connected to p-channel transistor, and transistor connected to receive a bias voltage, and its drain is connected to p-channel transistor (112). The gate of transistor(112) is connected to receive a second bias voltage. P-channel transistor(114) is connected between a transistor(112) and positive voltage supply. In operation, transistors(110-124) function as a differential latch(A,B) nodes are latched to opposite states depending upon the voltage drops across anti-fuses(100,102). By programming one of the anti-fuses, the remaining anti-fuse operates as a reference circuit. The p-channel is provided so that the anti-fuse help the node(A) and node(B) be adjusted.
    • 目的:提供防熔丝检测电路,通过测量检测节点上的电压来检测可编程器件中的反熔丝。 构成:包括反熔丝的反熔丝检测电路和包括交叉耦合晶体管(114,124)的锁存器(104)。 第一个反熔丝具有连接到GND的平面,并且连接到n沟道晶体管的第二平面以增加VCC,并且n沟道晶体管的漏极连接到p沟道晶体管,并且晶体管连接以接收偏置电压 ,其漏极连接到p沟道晶体管(112)。 晶体管(112)的栅极被连接以接收第二偏置电压。 P沟道晶体管(114)连接在晶体管(112)和正电压源之间。 在操作中,晶体管(110-124)用作差分锁存器(A,B),根据反熔丝(100,102)之间的电压降,节点被锁存到相反的状态。 通过编程其中一个防熔丝,剩余的反熔丝作为参考电路工作。 提供p沟道,使得反熔丝有助于调节节点(A)和节点(B)。