专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06690193B1 One-time end-user-programmable fuse array circuit and method 有权
标题翻译：一次性最终用户可编程保险丝阵列电路及方法
公开(公告)号：US06690193B1
公开(公告)日：2004-02-10
申请号：US10227723
申请日：2002-08-26
申请人： Walter Heinzer , Azita Soroushian-Ashe , Pak W. Kung , Derek Bowers
发明人： Walter Heinzer , Azita Soroushian-Ashe , Pak W. Kung , Derek Bowers
IPC分类号： H03K19177
CPC分类号： G11C29/027 , G11C7/1045 , G11C17/14 , G11C17/18 , G11C29/028 , G11C29/08
摘要： A one-time end-user-programmable fuse array circuit suitable for providing a digital input to a programmable analog element such as a DAC. An end-user-specified digital bit pattern is conveyed to a programming circuit, which programs an array of data fuses in accordance with the specified pattern. A validation means indicates whether the states of the data fuses match the specified pattern. The programming circuit blows a “lock” fuse when the data fuses match the specified pattern, which prevents any additional data fuses from being programmed. The specified pattern and the states of the data fuses are multiplexed to a programmable analog element. Initially, the end-user can vary the pattern to achieve a desired result from the programmable element. When the desired result is achieved, the data fuses are blown, the resulting pattern is validated, and the lock fuse is blown—thereby providing a permanent trim signal.
摘要翻译：适用于向可编程模拟元件（如DAC）提供数字输入的一次性最终用户可编程保险丝阵列电路。最终用户指定的数字位模式被传送到编程电路，该编程电路根据指定的模式对数据熔丝阵列进行编程。验证装置指示数据保险丝的状态是否匹配指定的模式。当数据保险丝与指定的模式匹配时，编程电路会吹动“锁定”保险丝，从而防止任何额外的数据保险丝被编程。指定的模式和数据保险丝的状态被复用到可编程模拟元件。最初，最终用户可以改变模式以从可编程元件获得期望的结果。当达到期望的结果时，数据保险丝被熔断，所得到的模式被验证，并且锁保险丝被熔断，从而提供永久性的修整信号。

IPRDB

热门服务

关于我们

友情链接

联系方式