JPH0310398U - - Google Patents

Info

Publication number
JPH0310398U
JPH0310398U JP6848589U JP6848589U JPH0310398U JP H0310398 U JPH0310398 U JP H0310398U JP 6848589 U JP6848589 U JP 6848589U JP 6848589 U JP6848589 U JP 6848589U JP H0310398 U JPH0310398 U JP H0310398U
Authority
JP
Japan
Prior art keywords
data
data storage
write
counter
eepro
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6848589U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP6848589U priority Critical patent/JPH0310398U/ja
Publication of JPH0310398U publication Critical patent/JPH0310398U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案を実施したＥＥＰＲＯＭ装置の
構成ブロツク図、第２図ａ，ｂは第１図に示した
本考案装置の動作を表わすフローチヤート、第３
図は本考案を実施した他のＥＥＰＲＯＭ装置の構
成ブロツク図、第４図は第３図に示した本考案装
置の動作を表わすフローチヤート、第５図ａ，ｂ
，ｃは第３図に示した本考案装置の動作を表わす
タイムチヤートである。 １０……ＥＥＰＲＯＭ装置、１１……記憶領域
、Ｆ１，Ｆ２，Ｆ３，Ｆ４……フラグ領域、Ｄ１
，Ｄ２，Ｄ３，Ｄ４……データ領域、１２……デ
ータ書込み制御部、１３……データ記憶領域選択
部、２０……ＥＥＰＲＯＭ装置、２１……データ
領域、２２……データ入出力制御部、２３……カ
ウンタ。 FIG. 1 is a block diagram of the configuration of an EEPROM device embodying the present invention, FIGS. 2a and b are flow charts showing the operation of the device of the present invention shown in FIG. 1, and FIG.
The figure is a block diagram of another EEPROM device embodying the present invention, FIG. 4 is a flowchart showing the operation of the device of the present invention shown in FIG. 3, and FIGS. 5 a and b.
, c are time charts showing the operation of the device of the present invention shown in FIG. 10...EEPROM device, 11...Storage area, F1, F2, F3, F4...Flag area, D1
, D2, D3, D4...Data area, 12...Data write control unit, 13...Data storage area selection unit, 20...EEPROM device, 21...Data area, 22...Data input/output control unit, 23 ……counter.

Claims (1)

【実用新案登録請求の範囲】 (1) 電気的にデータ書き替え可能なＥＥＰＲＯ
Ｍ装置において、データ格納部をそれぞれ同じ容
量で複数の領域に分割するとともに各々の領域に
対応してフラグ領域を設け、データ書込み信号が
与えられた際に現在設定されているフラグを解除
するデータ書込み制御部と、前記データ書込み信
号をカウント・アツプしてこのカウント・アツプ
した値に対応するデータ格納領域を指定するデー
タ記憶領域選択部とを備えることを特徴とするＥ
ＥＰＲＯＭ装置。 (2) 電気的にデータ書き替え可能なＥＥＰＲＯ
Ｍ装置において、書込み動作をカウント・アツプ
するカウンタと、このカウンタのオーバーフロー
出力によつてデータ・アクノリツジ信号の出力を
禁止するデータ入出力制御部とを備えることを特
徴とするＥＥＰＲＯＭ装置。[Scope of utility model registration claims] (1) EEPRO with electrically rewritable data
In the M device, the data storage section is divided into a plurality of areas each having the same capacity, and a flag area is provided corresponding to each area, and data that cancels the currently set flag when a data write signal is given. E characterized by comprising a write control section and a data storage area selection section that counts up the data write signal and specifies a data storage area corresponding to the counted up value.
EPROM device. (2) EEPRO that can electrically rewrite data
1. An EEPROM device comprising: a counter that counts up write operations; and a data input/output control section that inhibits output of a data acknowledge signal in response to an overflow output of the counter.
JP6848589U 1989-06-12 1989-06-12 Pending JPH0310398U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6848589U JPH0310398U (en) 1989-06-12 1989-06-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6848589U JPH0310398U (en) 1989-06-12 1989-06-12

Publications (1)

Publication Number Publication Date
JPH0310398U true JPH0310398U (en) 1991-01-31

Family

ID=31602965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6848589U Pending JPH0310398U (en) 1989-06-12 1989-06-12

Country Status (1)

Country Link
JP (1) JPH0310398U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542022U (en) * 1977-06-07 1979-01-08
JPS63121577U (en) * 1987-01-30 1988-08-08
JPH05126100A (en) * 1991-08-26 1993-05-21 Ebara Corp Vibration columnar pump
JP2011198409A (en) * 2010-03-19 2011-10-06 Toshiba Information Systems (Japan) Corp Nonvolatile memory

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS618798A (en) * 1984-06-21 1986-01-16 Nec Corp Nonvolatile storage device
JPS6159692A (en) * 1984-08-29 1986-03-27 Omron Tateisi Electronics Co Memory card system
JPS63234500A (en) * 1987-03-20 1988-09-29 Omron Tateisi Electronics Co Data protection system
JPS6464198A (en) * 1987-09-04 1989-03-10 Fujitsu Ltd Access control system for non-volatile memory with limited writing frequency

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS618798A (en) * 1984-06-21 1986-01-16 Nec Corp Nonvolatile storage device
JPS6159692A (en) * 1984-08-29 1986-03-27 Omron Tateisi Electronics Co Memory card system
JPS63234500A (en) * 1987-03-20 1988-09-29 Omron Tateisi Electronics Co Data protection system
JPS6464198A (en) * 1987-09-04 1989-03-10 Fujitsu Ltd Access control system for non-volatile memory with limited writing frequency

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542022U (en) * 1977-06-07 1979-01-08
JPS63121577U (en) * 1987-01-30 1988-08-08
JPH05126100A (en) * 1991-08-26 1993-05-21 Ebara Corp Vibration columnar pump
JP2011198409A (en) * 2010-03-19 2011-10-06 Toshiba Information Systems (Japan) Corp Nonvolatile memory

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