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公开(公告)号:FR2836752A1
公开(公告)日:2003-09-05
申请号:FR0213557
申请日:2002-10-29
Applicant: ST MICROELECTRONICS SA
Inventor: BARDOUILLET MICHEL , RIZZO PIERRE , MALHERBE ALEXANDRE , WUIDART LUC
IPC: G06F21/06 , G11C16/22 , G11C17/14 , H01L27/10 , G11C17/08 , G11C17/18 , H01L27/115 , H01L21/326
Abstract: The invention relates to a memory cell with a binary value consisting of two parallel branches. Each of said branches comprises: at least one polycrystalline silicon programming resistor (Rp 1 , Rp 2 ), which is connected between a first supply terminal ( 1 ) and a point or terminal for the differential reading ( 4, 6 ) of the memory cell state; and at least one first switch (MNP 1 , MNP 2 ) which, during programming, connects one of said read terminals to a second supply terminal ( 2 ).
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公开(公告)号:DE602006006694D1
公开(公告)日:2009-06-18
申请号:DE602006006694
申请日:2006-09-05
Applicant: ST MICROELECTRONICS SA
Inventor: RIZZO PIERRE , MOREAUX CHRISTOPHE , NAURA DAVID , KARI AHMED
IPC: G11C11/24 , G11C11/401
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公开(公告)号:DE602006004367D1
公开(公告)日:2009-01-29
申请号:DE602006004367
申请日:2006-08-25
Applicant: ST MICROELECTRONICS SA
Inventor: NAURA DAVID , MOREAUX CHRISTOPHE , KARI AHMED , RIZZO PIERRE
IPC: G11C5/14
Abstract: A passive contactless integrated circuit includes an electrically programmable non-volatile data memory (MEM), a charge accumulation booster circuit for supplying a high voltage necessary for writing data in the memory. The integrated circuit includes a volatile memory point for memorizing an indicator flag, and circuitry for modifying the value of the indicator flag when the high voltage reaches a critical threshold for the first time after activating the booster circuit.
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公开(公告)号:FR2892212A1
公开(公告)日:2007-04-20
申请号:FR0510590
申请日:2005-10-17
Applicant: ST MICROELECTRONICS SA
Inventor: MANI CHRISTOPHE , DELL OVA FRANCIS , RIZZO PIERRE
Abstract: L'invention concerne un lecteur à couplage inductif (50) comprenant un circuit d'interface passif (16) pour moduler l'impédance d'un circuit d'antenne (13) et extraire du circuit d'antenne un signal de données (SDTr) et un signal d'horloge RF (CK0), et des moyens (DB3) de connexion du lecteur à un module de sécurité amovible (40, 43). Selon l'invention, le lecteur comprend un circuit d'émulation (17) pour ouvrir un canal de communication RF avec un autre lecteur, une liaison électrique non amovible reliant le circuit d'émulation (17) au circuit d'interface passif (16), au moyen de laquelle le signal de données (SDTr) et le signal d'horloge RF (CK0) sont fournis au circuit d'émulation (17), et un bus de données (DB3) cadencé par un signal d'horloge de bus de fréquence inférieure à la fréquence du signal d'horloge RF, pour relier le circuit d'émulation (17) au module de sécurité amovible (40, 43). Avantage : réalisation d'un lecteur à faible consommation électrique.
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公开(公告)号:FR2890483A1
公开(公告)日:2007-03-09
申请号:FR0509141
申请日:2005-09-08
Applicant: ST MICROELECTRONICS SA
Inventor: RIZZO PIERRE , MOREAUX CHRISTOPHE , NAURA DAVID , KARI AHMED
IPC: G11C14/00
Abstract: L'invention concerne une cellule mémoire volatile rémanente (PVCELL), pour mémoriser une donnée binaire (Fp) pendant un temps de rétention (Tp) indépendant d'une tension (Vcc) d'alimentation de la cellule mémoire. Selon l'invention, la cellule mémoire comprend un point mémoire capacitif (CMP) fournissant une tension rémanente (Vp) et ayant un temps de décharge déterminé, un interrupteur (T1) pour provoquer la décharge du point mémoire lorsqu'un signal d'effacement (RESET) présente une valeur active, un interrupteur (T2) pour provoquer la charge du point mémoire lorsqu'un signal d'écriture (SET) présente une valeur active, et un circuit détecteur-amplificateur (SACT) ayant une entrée (IN1) recevant la tension rémanente (Vp), et une sortie (OUT1) fournissant la donnée binaire (Fp). Application notamment à la gestion d'un drapeau d'inventaire dans un circuit intégré sans contact.
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公开(公告)号:FR2863745B1
公开(公告)日:2006-06-30
申请号:FR0314743
申请日:2003-12-16
Applicant: ST MICROELECTRONICS SA
Inventor: RIZZO PIERRE , MOREAUX CHRISTOPHE
IPC: G06K19/073 , G06F12/14 , G06K19/07
Abstract: The memory (30) has user identification (UID) zone adapted to store an identifier of a radio frequency identification type contactless label. A specific computer word (RES) reserved in a user zone is adapted to store a deactivation value permitting to avoid reading and/or transmission of the identifier in response to a radio interrogation signal transmitted by a remote interrogation unit. An independent claim is also included for a method for permanently deactivating a radio frequency identification type contactless label.
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公开(公告)号:FR2863745A1
公开(公告)日:2005-06-17
申请号:FR0314743
申请日:2003-12-16
Applicant: ST MICROELECTRONICS SA
Inventor: RIZZO PIERRE , MOREAUX CHRISTOPHE
IPC: G06K19/07 , G06K19/073 , G06F12/14
Abstract: The memory (30) has user identification (UID) zone adapted to store an identifier of a radio frequency identification type contactless label. A specific computer word (RES) reserved in a user zone is adapted to store a deactivation value permitting to avoid reading and/or transmission of the identifier in response to a radio interrogation signal transmitted by a remote interrogation unit. An independent claim is also included for a method for permanently deactivating a radio frequency identification type contactless label.
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公开(公告)号:AU2003226880A1
公开(公告)日:2003-09-04
申请号:AU2003226880
申请日:2003-02-11
Applicant: ST MICROELECTRONICS SA
Inventor: BARDOUILLET MICHEL , RIZZO PIERRE , MALHERBE ALEXANDRE , WUIDART LUC
Abstract: The invention relates to a memory cell with a binary value consisting of two parallel branches. Each of said branches comprises: at least one polycrystalline silicon programming resistor (Rp 1 , Rp 2 ), which is connected between a first supply terminal ( 1 ) and a point or terminal for the differential reading ( 4, 6 ) of the memory cell state; and at least one first switch (MNP 1 , MNP 2 ) which, during programming, connects one of said read terminals to a second supply terminal ( 2 ).
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公开(公告)号:AT479156T
公开(公告)日:2010-09-15
申请号:AT06808059
申请日:2006-09-01
Applicant: ST MICROELECTRONICS SA
Inventor: MANI CHRISTOPHE , DELL OVA FRANCIS , RIZZO PIERRE
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公开(公告)号:DE60317312T2
公开(公告)日:2008-09-04
申请号:DE60317312
申请日:2003-02-11
Applicant: ST MICROELECTRONICS SA
Inventor: BARDOUILLET MICHEL , RIZZO PIERRE , MALHERBE ALEXANDRE , WUIDART LUC
Abstract: An integrated cell and method for extracting a binary value based on a value difference between two resistors values, including connection circuitry for a binary reading of the sign of the difference between the resistors, and connection circuitry for a modification of the value of one of the resistors to make the sign of the difference invariable.
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