发明授权
US06384666B1 Antifuse latch device with controlled current programming and variable trip point
有权
具有受控电流编程和可变跳变点的防漏锁存器件
- 专利标题: Antifuse latch device with controlled current programming and variable trip point
- 专利标题(中): 具有受控电流编程和可变跳变点的防漏锁存器件
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申请号: US09816030申请日: 2001-03-23
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公开(公告)号: US06384666B1公开(公告)日: 2002-05-07
- 发明人: Claude L. Bertin , John A. Fifield , Russell J. Houghton , Nicholas M. van Heel
- 申请人: Claude L. Bertin , John A. Fifield , Russell J. Houghton , Nicholas M. van Heel
- 主分类号: H01H3776
- IPC分类号: H01H3776
摘要:
A latch device is provided having a variable resistive trip point and controlled current programming. The latch device has a trip point current control element that controls an amount of current passing from a voltage source into the latch circuit, thereby varying the resistive trip point of the latch device. The latch device also has a programming current control element that controls an amount of programming current passing through the fuse element during programming. The trip point current reference and a programming current reference are provided by reference circuits having a plurality of selectable inputs that operate to change the current references binarily. An integrated circuit is also provided in which a plurality of the fuse latch devices are connected together in parallel such that the same trip point current reference and programming current reference are supplied to each latch device.