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Information about Edram

Computer memory types


eDRAM stands for "embedded DRAM", a capacitor-based dynamic random access memory usually integrated on the same die or in the same package as the main ASIC or processor, as opposed to external DRAM modules and transistor-based SRAM typically used for caches.

Embedding permits much wider buses and higher operation speeds, and due to much higher density of DRAM in comparison to SRAM, larger amounts of memory can potentially be used. However, the difference in manufacturing processes make on-die integration difficult, so several dies have to be packaged in one chip, raising costs. The latest developments overcome this limitation by using standard CMOS process to manufacture eDRAM, as in 1T-SRAM.

eDRAM is used in many game consoles, including the PlayStation 2, PlayStation Portable, Nintendo GameCube, Wii and Xbox 360.

Both the Cell microprocessor used in the PlayStation 3 and the IBM POWER CPUs will utilize eDRAM for L2 cache, likely in IBM's 45 nm process node.

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Computer data storage, computer memory, and often casually storage or memory refer to computer components, devices and recording media that retain digital data used for computing for some interval of time.
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Volatile memory, also known as volatile storage or primary storage device, is computer memory that requires power to maintain the stored information, unlike non-volatile memory which does not require a maintained power supply.
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1T-SRAM is MoSys's implementation of embedded DRAM on a conventional digital-logic (standard-cell) ASIC process.

Conventional DRAM devices (ICs) are designed and built for heavily DRAM-optimized processes to maximize bit density, rendering traditional DRAM cell designs
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This article contains information about scheduled or expected .
It may contain preliminary or speculative information, and may not reflect the final specification of the product.
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The Williams tube or (more accurately) the Williams-Kilburn tube (after Freddie Williams and co-worker Tom Kilburn), developed about 1946 or 1947, was a cathode ray tube used to electronically store binary data.
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Delay line memory was a form of computer memory used on some of the earliest digital computers. Like many modern forms of electronic computer memory, delay line memory was a refreshable memory, but as opposed to modern random access memory, delay line memory was serial
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The Selectron was an early form of digital computer memory developed by Jan A. Rajchman and his group at the Radio Corporation of America under the direction of Vladimir Zworykin, of television technology fame.
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Non-volatile memory, nonvolatile memory, NVM or non-volatile storage, is computer memory that can retain the stored information even when not powered.
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EPROM, or erasable programmable read-only memory, is a type of computer memory chip that retains its data when its power supply is switched off. In other words, it is non-volatile.
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An EEPROM (also called an E2PROM) or Electrically Erasable Programmable Read-Only Memory, is a non-volatile storage chip used in computers and other devices to store small amounts of volatile (configuration) data.
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Flash memory is non-volatile computer memory that can be electrically erased and reprogrammed. It is a technology that is primarily used in memory cards, and USB flash drives (thumb drives, handy drive, memory stick, flash stick, jump drive) for general storage and transfer of data
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Ferroelectric RAM (FeRAM or FRAM[1]) is a type of non-volatile computer memory. It is similar in constructionDRAM, which is currently used in the majority of a computer's main memory, but uses a ferroelectric layer to achieve non-volatility.
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This article contains information about scheduled or expected .
It may contain preliminary or speculative information, and may not reflect the final specification of the product.
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This article contains information about scheduled or expected .
It may contain preliminary or speculative information, and may not reflect the final specification of the product.
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Sonos

Private
Founded 2003
Headquarters Santa Barbara, California

Key people John MacFarlane, CEO
Industry Audio equipment
Products Sonos Digital Music System
Employees 80 (2006 approx.)
Website www.sonos.
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This article contains information about scheduled or expected .
It may contain preliminary or speculative information, and may not reflect the final specification of the product.

Nano-RAM, is a proprietary computer memory technology from the company Nantero.
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Drum memory was an early form of computer memory that was widely used in the 1950s and into the 1960s, invented by Gustav Tauschek in 1932 in Austria. For many machines, a drum
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Magnetic core memory, or ferrite-core memory, is an early form of computer memory. It uses small magnetic ceramic rings, the cores, to store information via the polarity of the magnetic field they contain.
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Bubble memory is a type of non-volatile computer memory that uses a thin film of a magnetic material to hold small magnetized areas, known as bubbles, which each store one bit of data.
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An embedded system is a special-purpose computer system designed to perform one or a few dedicated functions.[1] It is usually embedded as part of a complete device including hardware and mechanical parts.
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DRAM types
  • FPM RAM
  • EDO RAM
  • Burst EDO RAM
  • SDRAM
  • SDR SDRAM
  • DDR SDRAM
  • DDR2 SDRAM

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capacitor is an electrical/electronic device that can store energy in the electric field between a pair of conductors (called "plates"). The process of storing energy in the capacitor is known as "charging", and involves electric charges of equal magnitude, but opposite polarity,
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DRAM types
  • FPM RAM
  • EDO RAM
  • Burst EDO RAM
  • SDRAM
  • SDR SDRAM
  • DDR SDRAM
  • DDR2 SDRAM

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integrated circuit (also known as IC, microcircuit, microchip, silicon chip, or chip) is a miniaturized electronic circuit (consisting mainly of semiconductor devices, as well as passive components) that has been manufactured in the surface of a
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Multi-Chip Module or MCM is a specialized electronic package where multiple integrated circuits (ICs), semiconductor dies or other modules are packaged in such a way as to facilitate their use as a single IC.
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application-specific integrated circuit (ASIC) is an integrated circuit (IC) customized for a particular use, rather than intended for general-purpose use. For example, a chip designed solely to run a cell phone is an ASIC.
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Processor may refer to:
  • Central processing unit, the part of a computer that interprets instructions
  • Manuscripts processor, one who arranges and describes manuscripts collections
  • Microprocessor, a part of a microcomputer

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A transistor is a semiconductor device, commonly used as an amplifier or an electrically controlled switch. The transistor is the fundamental building block of the circuitry in computers, cellular phones, and all other modern electronic devices.
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Static random access memory (SRAM) is a type of semiconductor memory. The word "static" indicates that the memory retains its contents as long as power remains applied, unlike dynamic RAM (DRAM) that needs to be periodically refreshed (nevertheless, SRAM should not be
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cache (IPA:/kæʃ/, like "catch" [1]) is a collection of data duplicating original values stored elsewhere or computed earlier, where the original data is expensive to fetch (due to longer access time) or to
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