发明授权
- 专利标题: Autonomous antifuse cell
- 专利标题(中): 自主抗反应池
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申请号: US11375839申请日: 2006-03-14
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公开(公告)号: US07304878B2公开(公告)日: 2007-12-04
- 发明人: Vincent Gosmain , Florent Garcia
- 申请人: Vincent Gosmain , Florent Garcia
- 申请人地址: US CA San Jose
- 专利权人: Atmel Corporation
- 当前专利权人: Atmel Corporation
- 当前专利权人地址: US CA San Jose
- 代理机构: Schneck & Schneck
- 代理商 Thomas Schneck
- 优先权: FR0512419 20051207
- 主分类号: G11C17/00
- IPC分类号: G11C17/00
摘要:
An autonomous antifuse cell providing protection against intruders includes an antifuse, sense circuitry, feedback circuitry, program circuitry, and blocking circuitry. The blocking circuitry blocks access of any programming voltage input signals to the antifuse device if the antifuse is previously blown and when power is applied to the cell. In an exemplary embodiment, the antifuse cell uses only a single external access pin. Once the antifuse device is blown and during subsequent power-up operations, intrusion is prevented.
公开/授权文献
- US20070127283A1 Autonomous antifuse cell 公开/授权日:2007-06-07