IT1244293B - Dispositivo di lettura per celle eprom con campo operativo indipendente dal salto di soglia delle celle scritte rispetto alle celle vergini - Google Patents
Dispositivo di lettura per celle eprom con campo operativo indipendente dal salto di soglia delle celle scritte rispetto alle celle verginiInfo
- Publication number
- IT1244293B IT1244293B IT02087790A IT2087790A IT1244293B IT 1244293 B IT1244293 B IT 1244293B IT 02087790 A IT02087790 A IT 02087790A IT 2087790 A IT2087790 A IT 2087790A IT 1244293 B IT1244293 B IT 1244293B
- Authority
- IT
- Italy
- Prior art keywords
- cells
- reading device
- virgin
- written
- operating field
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/26—Sensing or reading circuits; Data output circuits
- G11C16/28—Sensing or reading circuits; Data output circuits using differential sensing or reference cells, e.g. dummy cells
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT02087790A IT1244293B (it) | 1990-07-06 | 1990-07-06 | Dispositivo di lettura per celle eprom con campo operativo indipendente dal salto di soglia delle celle scritte rispetto alle celle vergini |
EP91201641A EP0464928B1 (en) | 1990-07-06 | 1991-06-27 | Reading device for EPROM memory cells with the operational field independent of the threshold jump of the written cells with respect to the virgin cells |
DE69126245T DE69126245T2 (de) | 1990-07-06 | 1991-06-27 | Leseschaltung für EPROM-Speicherzellen mit einem Betriebsfeld, unabhängig von Schwellpegelsprüngen programmierter Zellen in Beziehung zu nichtprogrammierten Zellen |
JP16426691A JP3184984B2 (ja) | 1990-07-06 | 1991-07-04 | 書き込まれているセルの書き込まれていないセルに対するしきい値のジャンプから独立した動作フィールドを有するepromメモリセルのための読み出し装置 |
US07/725,987 US5267202A (en) | 1990-07-06 | 1991-07-05 | Reading device for EPROM memory cells with the operational field independent of the threshold jump of the written cells with respect to the virgin cells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT02087790A IT1244293B (it) | 1990-07-06 | 1990-07-06 | Dispositivo di lettura per celle eprom con campo operativo indipendente dal salto di soglia delle celle scritte rispetto alle celle vergini |
Publications (3)
Publication Number | Publication Date |
---|---|
IT9020877A0 IT9020877A0 (it) | 1990-07-06 |
IT9020877A1 IT9020877A1 (it) | 1992-01-06 |
IT1244293B true IT1244293B (it) | 1994-07-08 |
Family
ID=11173426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT02087790A IT1244293B (it) | 1990-07-06 | 1990-07-06 | Dispositivo di lettura per celle eprom con campo operativo indipendente dal salto di soglia delle celle scritte rispetto alle celle vergini |
Country Status (5)
Country | Link |
---|---|
US (1) | US5267202A (it) |
EP (1) | EP0464928B1 (it) |
JP (1) | JP3184984B2 (it) |
DE (1) | DE69126245T2 (it) |
IT (1) | IT1244293B (it) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1246241B (it) * | 1990-02-23 | 1994-11-17 | Sgs Thomson Microelectronics | Circuito per la lettura dell'informazione contenuta in celle di memoria non volatili |
DE69426487T2 (de) * | 1994-03-28 | 2001-06-07 | Stmicroelectronics S.R.L., Agrate Brianza | Verfahren und Schaltung zur Referenzsignalerzeugung zur Differentialauswertung des Inhalts von nichtflüchtigen Speicherzellen |
FR2760888B1 (fr) * | 1997-03-11 | 1999-05-07 | Sgs Thomson Microelectronics | Circuit de lecture pour memoire adapte a la mesure des courants de fuite |
US6317362B1 (en) * | 1999-07-13 | 2001-11-13 | Sanyo Electric Co., Ltd. | Semiconductor memory device |
US6538922B1 (en) | 2000-09-27 | 2003-03-25 | Sandisk Corporation | Writable tracking cells |
IT1319597B1 (it) * | 2000-12-20 | 2003-10-20 | St Microelectronics Srl | Sistema di lettura di una cella di memoria |
US7237074B2 (en) * | 2003-06-13 | 2007-06-26 | Sandisk Corporation | Tracking cells for a memory system |
US7301807B2 (en) | 2003-10-23 | 2007-11-27 | Sandisk Corporation | Writable tracking cells |
JP4262227B2 (ja) * | 2005-07-22 | 2009-05-13 | シャープ株式会社 | 半導体記憶装置の読み出し回路 |
US8773934B2 (en) * | 2006-09-27 | 2014-07-08 | Silicon Storage Technology, Inc. | Power line compensation for flash memory sense amplifiers |
KR20140081027A (ko) * | 2012-12-21 | 2014-07-01 | 에스케이하이닉스 주식회사 | 비휘발성 메모리 장치 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1204375B (it) * | 1986-06-03 | 1989-03-01 | Sgs Microelettronica Spa | Generatore di polarizzazione di sorgenti per transistori naturali in circuiti integrati digitali in tecnologia mos |
JPH0814993B2 (ja) * | 1989-01-13 | 1996-02-14 | 株式会社東芝 | 半導体記憶装置 |
-
1990
- 1990-07-06 IT IT02087790A patent/IT1244293B/it active IP Right Grant
-
1991
- 1991-06-27 EP EP91201641A patent/EP0464928B1/en not_active Expired - Lifetime
- 1991-06-27 DE DE69126245T patent/DE69126245T2/de not_active Expired - Fee Related
- 1991-07-04 JP JP16426691A patent/JP3184984B2/ja not_active Expired - Fee Related
- 1991-07-05 US US07/725,987 patent/US5267202A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5267202A (en) | 1993-11-30 |
EP0464928A3 (en) | 1993-03-31 |
JP3184984B2 (ja) | 2001-07-09 |
DE69126245T2 (de) | 1997-11-06 |
DE69126245D1 (de) | 1997-07-03 |
EP0464928B1 (en) | 1997-05-28 |
EP0464928A2 (en) | 1992-01-08 |
IT9020877A0 (it) | 1990-07-06 |
IT9020877A1 (it) | 1992-01-06 |
JPH056682A (ja) | 1993-01-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970730 |