发明名称 |
Nonvolatile serially programmable devices. |
摘要 |
<p>An integrated circuit including a serial interface (12) having a nonvolatile memory (30) coupled to a configurable circuit (10) allows remote electrical trimming and configuration of circuit boards and entire systems. A configurable circuits (10) containing switches, resistors, capacitors or digital logic devices has an unique identification code and is electrically configured by connection to a nonvolatile memory (30). An interrogation shift register (38) and a configuration data shift register (36) are serially connected to receive a serial bit stream (50) containing an interrogation code section and a configuration data section. The interrogation code, which is identical to the identification code of a selected one of the configurable circuits, is compared with the circuit identification code to provide a match pulse (42) that enables a program signal to initiate transfer of data from the data shift register (36) to the nonvolatile memory (30). <IMAGE></p> |
申请公布号 |
EP0490511(A2) |
申请公布日期 |
1992.06.17 |
申请号 |
EP19910310826 |
申请日期 |
1991.11.25 |
申请人 |
HUGHES AIRCRAFT COMPANY |
发明人 |
ARALIS, JAMES M.;BOHAC, FRANK J., JR. |
分类号 |
G11C16/04;G05B19/042;G06F9/06;G11C5/00;G11C7/24;G11C16/22;G11C17/00;H01L21/66 |
主分类号 |
G11C16/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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