NDLI: A plated wire read only memory module

Content Provider	IEEE Xplore Digital Library
Author	Terajima, M. Ikawa, H. Yamakawa, M. Endo, N.
Copyright Year	1965
Abstract	An electrically alterable read only memory module using NDRO plated wire cables has been designed to store the fixed programs of electronic exchange systems. The capacity of the memory system is 1080 kbits (4 modules) and the read cycle time 1.44 μs. The magnetic film of plated wire consists of five layers (Permalloy and Ni-Co films) on 0.1-mm-diameter Be-Cu wire. The 72-pair plated wires 50 m long are laminated between polyester tapes and are formed as a plated wire cable. A pair wire forms a bit (2 cross point/bit). The memory module consists of 16 memory planes stacked and involves 8192 33-bit words (270 336 bits) in total. An address has 8 words and is selected through a diode matrix built in the module. The plated wire cables are folded with no interconnection like the twister module. The digit (Id) and word current (Iw) operating ranges in this module are 68 to 92 mA and 270 to 320 mA, respectively. 5 mV is specified as an allowable minimum output voltage. The ambient temperature range of this module is from 10 to 40°C. The temperature coefficient of the output voltage is approximately 0.0065/°C.
Sponsorship	IEEE Magnetics Society
Starting Page	361
Ending Page	361
Page Count	1
File Size	126230
File Format	PDF
ISSN	00189464
Volume Number	8
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1972-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wire Read only memory Voltage Cables Transistors Ferrites Anisotropic magnetoresistance Magnetic films Automatic control Stability
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Testing continuously plated magnetic wire

A read only 70-NS waffle iron memory

Fail-safe element using thin film parametron

A 60-ns access time plated-wire electrically alterable ROM

A modular plated wire memory plane

Effects of dispersion on disturb characteristics of plated wire memories

Plated wire memory--Present and future

The read-write disturb problem in plated wire memories

Anisotropic stress in window-plated Permalloy thin films

A plated wire read only memory module

Similar Documents

Testing continuously plated magnetic wire

A read only 70-NS waffle iron memory

Fail-safe element using thin film parametron

A 60-ns access time plated-wire electrically alterable ROM

A modular plated wire memory plane

Effects of dispersion on disturb characteristics of plated wire memories

Plated wire memory--Present and future

The read-write disturb problem in plated wire memories

Anisotropic stress in window-plated Permalloy thin films

A plated wire read only memory module