发明公开
EP0598475A2 Apparatus and method for protecting a programmable logic device from undesired input overshoot voltages
失效
基本信息:
- 专利标题： Apparatus and method for protecting a programmable logic device from undesired input overshoot voltages
- 专利标题（中）：装置和用于保护的可编程逻辑电路过电压的方法。
- 申请号：EP93307049.2 申请日：1993-09-07
- 公开(公告)号：EP0598475A2 公开(公告)日：1994-05-25
- 发明人： Chang, Herman M. , Sharpe-Geisler, Bradley
- 申请人： ADVANCED MICRO DEVICES, INC.
- 申请人地址： 901 Thompson Place P.O. Box 3453 Sunnyvale, CA 94088 US
- 专利权人： ADVANCED MICRO DEVICES, INC.
- 当前专利权人： ADVANCED MICRO DEVICES, INC.
- 当前专利权人地址： 901 Thompson Place P.O. Box 3453 Sunnyvale, CA 94088 US
- 代理机构： BROOKES & MARTIN
- 优先权： US979167 19921117
- 主分类号： H03K19/003
- IPC分类号： H03K19/003 ; H03K19/177 ; G11C16/06 ; G11C7/00
摘要：
A device for protecting a programmable logic device from undesired input overshoot voltages. The invention requires the overvoltage to be applied for a time duration longer than the predetermined time constant of a time delay circuit. The time delay distinguishes between the undesired overvoltages which are less than the predetermined time delay and are rejected as noise induced from the desired overvoltages which exceed the predetermined time delay and are recognized as intentional programming "super voltages". The invention is used to protect programmable logic devices, such as programmable arrays, from inadvertently entering into an erasable or programmable mode of the logic device, such as, the edit mode.
摘要（中）：
一种用于保护可编程逻辑器件免受不期望的输入电压的过冲装置。 本发明需要过电压到对于持续时间大于一个时间延迟电路的预定的时间常数而施用的更长。 延时区分不需要过电压哪些是小于预定的时间延迟，被拒绝从期望中的过电压超出了预定的时间延迟，并被认为是故意设计的“超电压”引起的噪声之间。 本发明是用来保护可编程逻辑器件，颜色：如可编程阵列，从无意中进入的逻辑器件，彩色的可擦除或可编程模式：例如，编辑模式。
公开/授权文献:
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 |
| --------H03K19/003 | .提高可靠性的改进 |