The switching properties of a Programmable Metallization Cell (PMC) structure based on the Ag-As2S3 solid electrolyte were investigated. It was found that at 120 mV of forward bias voltage the device switches from an off state resistance to an on resistance state which is more than two orders of magnitude lower. To bring the structure back in an off state, a reverse bias of several volts is required. The frequency dependence of the switching threshold was carried out. Also is found that time required to switch the structure in a stabile on stat ....etc

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programmable metallization cell, or PMC, is a new form of non-volatile computer memory being developed at Arizona State University.

PMC is based on the physical re-location of ions within a solid electrolyte. A PMC memory cell is made of two solid metal electrodes, one relatively inert (e.g., tungsten) the other electrochemically active (e.g., silver or copper), with a thin film of the electrolyte between them. A control transistor can also be included in each cell.

When a negative bias is applied to the inert electrode, metal ions in the ....etc

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The trend in VLSI towards single-chip systems leads to the integration of analog and digital functions on a single chip. Field-programmable devices also follow the same trend. Currently, there are many digital field-programmable devices in existence like Field Programmable Gate Arrays (FPGA), and more recently Field Programmable Analog Arrays have been developed. Field-Programmable Analog Array, usually abbreviated FPAA, is the analog equivalent of the FPGA, a digital programmable device. It is an integrated circuit which can be configured to i ....etc

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Hi,
Can someone please reply / post the documented details for this project - Microcontroller Programmable Function Generator?
The IC I found for this is MAX038 but unsure which microcontroller is the best suitable one for this and I thought of using C programming to program the MCU.
Many thanks.

Regards. ....etc

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A Phase Change Memory as a Secure Main Memory
A Seminar Report
by
Abdul Nassar A A
M105101
Department of Computer Science & Engineering
College of Engineering Trivandrum
Kerala - 695016
2010-11



Contents
1 Introduction 5
2 PCM Technology 6
2.1 History and background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Memory cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Operation . . . . . . . . . . . ....etc

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Programmable Power Supply (PPS)

Introduction
In laboratory and experimental work, the source of energy electric is very important.
Most products in electronics require using the current and voltage source. I propose to develop a programmable power supply as my senior project. The requirement I propose for this project is that the programmable power supply will provide the user an output voltage from one to fifteen volts at a current level up to 1 amp.
Description
For the user interface, the power supply will con ....etc

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PROGRAMMABLE LOGIC CONTROLLERS AND SCADA


Presented by
N. D. Ramesh


Road Map
Introduction
Basic PLC components
Introduction to STEP 7 LITE
Programming PLC and Ladder logic
Exercises
SCADA
Future scope

Introduction
A digitally operating electronic apparatus which uses a programmable memory for implementing specific functions such as :
Logic sequencing
Timing
Counting
Arithmetic control
through digital or analog
input/output modules
Purpose of PL ....etc

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