KR890001473U - Real-time clock and SRAM malfunction prevention circuit - Google Patents

Real-time clock and SRAM malfunction prevention circuit

Info

Publication number
KR890001473U
KR890001473U KR2019870008938U KR870008938U KR890001473U KR 890001473 U KR890001473 U KR 890001473U KR 2019870008938 U KR2019870008938 U KR 2019870008938U KR 870008938 U KR870008938 U KR 870008938U KR 890001473 U KR890001473 U KR 890001473U
Authority
KR
South Korea
Prior art keywords
sram
real
time clock
prevention circuit
malfunction prevention
Prior art date
Application number
KR2019870008938U
Other languages
Korean (ko)
Other versions
KR900000087Y1 (en
Inventor
주현오
민승기
Original Assignee
금성통신주식회사
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 by 금성통신주식회사 filed Critical 금성통신주식회사
Priority to KR2019870008938U priority Critical patent/KR900000087Y1/en
Publication of KR890001473U publication Critical patent/KR890001473U/en
Application granted granted Critical
Publication of KR900000087Y1 publication Critical patent/KR900000087Y1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • G11C11/41—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming static cells with positive feedback, i.e. cells not needing refreshing or charge regeneration, e.g. bistable multivibrator or Schmitt trigger
    • G11C11/413—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/20—Memory cell initialisation circuits, e.g. when powering up or down, memory clear, latent image memory
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/24—Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Electric Clocks (AREA)
KR2019870008938U 1987-06-03 1987-06-03 Circuit which prevents errors in movement of real time clock and sram KR900000087Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870008938U KR900000087Y1 (en) 1987-06-03 1987-06-03 Circuit which prevents errors in movement of real time clock and sram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870008938U KR900000087Y1 (en) 1987-06-03 1987-06-03 Circuit which prevents errors in movement of real time clock and sram

Publications (2)

Publication Number Publication Date
KR890001473U true KR890001473U (en) 1989-03-18
KR900000087Y1 KR900000087Y1 (en) 1990-01-30

Family

ID=19263775

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870008938U KR900000087Y1 (en) 1987-06-03 1987-06-03 Circuit which prevents errors in movement of real time clock and sram

Country Status (1)

Country Link
KR (1) KR900000087Y1 (en)

Also Published As

Publication number Publication date
KR900000087Y1 (en) 1990-01-30

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee