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Flash Memory: Devices
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Flash memory stores information in an array of floating-gate transistors, called "cells". In traditional single-level cell (SLC) devices, each cell stores only one bit of information. Some newer flash memory, known as multi-level cell (MLC) devices, can store more than one bit per cell by choosing between multiple levels of electrical charge to apply to the floating gates of its cells.
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SUNNYVALE, Calif., Sept. 10 /PRNewswire-FirstCall/ -- SST (Silicon Storage Technology, Inc.), a leader in flash memory technology, today announced a new addition to the company's popular SuperFlash-based FlashFlex family of 8-bit, 8051-compatible microcontrollers, the SST89V54RD-33-C-QIF. Leveraging the company's innovative packaging technology, the new SST89V54RD is available in a 6mm x 6mm WQFN package, making it the smallest 8051-based microcontroller currently on the market. The device's miniature size and low power consumption are ideal for small form factor mobile applications, such as notebook PCs, MP3 players and GPS systems, as well as home entertainment devices including HDMI products. Additionally, the SST89V54RD supports in-system programming (ISP) and in-application programming (IAP), which provide a variety of benefits to device manufacturers and consumers alike.
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Flash memory products for end-users, such as memory cards and USB drives, were as of early 2008 widely available in capacities ranging from 512 megabytes to 32 gigabytes. The highest capacity is found in USB devices with a current record of 128 GB.[10] Consumer flash drives typically have sizes measured in powers of two (e.g. 512 MB, 8 GB), but unlike DIMMs (and like hard drives) these sizes use decimal units. This means that a 1 GB flash drive (holding roughly 1,000,000,000 bytes) is less than twice the size of a 512 MB flash drive (holding roughly 512,000,000 bytes). In contrast a 1 GB DIMM (actually 1 GiB) is exactly twice the size of a 512 MB DIMM (actually 512 MiB).
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The MFDeploy tool communicates with the bootloader on Micro Framework-enabled devices, and provides you with an extensible, flash memory management tool. This version is the first release on CNET Download.com. Tags: Microsoft .NET, Microsoft Corp., Firmware, Flash Memory, Tool, MFDeploy Tool, Productivity, Memory, Semiconductors, Hardware, Components Software downloads 2007-09-07
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Flash memory, sometimes called [F]lash RAM, is a type of semiconductor device that combines important features of both memory and storage. These features include high-speed access and retention of data in the absence of a power supply.
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"BeSang's vertical flash memory has been designed and developed to be implemented using BeSang's proprietary single-chip 3D IC since the 3D IC is more efficient with vertical than planar devices," said Sang-Yun Lee, CEO of BeSang. "BeSang expects that a 0.5F2 effective cell size will change the rules of the game in the flash memory market because it is 8 times smaller than conventional 4F2 NOR flash memory cell technologies currently available. The effective memory cell size can be further reduced to 0.12F2, which is about 32 times smaller than conventional NOR cell, using stacked-SGT ("Surround Gate Transistor") and double memory layers."
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