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No results could be found matching the exact term fram in the thesaurus. |
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Dictionary Results for fram: |
1. V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016) |
FRAM
Ferroelectric Random Access Memory (RAM, IC)
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2. The Free On-line Dictionary of Computing (30 December 2018) |
Ferroelectric Random Access Memory
Ferroelectric RAM
FRAM
(FRAM) A type of non-volatile read/write random
access semiconductor memory. FRAM combines the advantages
of SRAM - writing is roughly as fast as reading, and EPROM
- non-volatility and in-circuit programmability. Current (Feb
1997) disadvantages are high cost and low density, but that
may change in the future. Density is currently at most 32KB
on a chip, compared with 512KB for SRAM, 1MB for EPROM and 8MB
for DRAM.
A ferroelectric memory cell consists of a ferroelectric
capacitor and a MOS transistor. Its construction is
similar to the storage cell of a DRAM. The difference is in
the dielectric properties of the material between the
capacitor's electrodes. This material has a high dielectric
constant and can be polarized by an electric field. The
polarisation remains until it gets reversed by an opposite
electrical field. This makes the memory non-volatile. Note
that ferroelectric material, despite its name, does not
necessarily contain iron. The most well-known ferroelectric
substance is BaTiO3, which does not contain iron.
Data is read by applying an electric field to the capacitor.
If this switches the cell into the opposite state (flipping
over the electrical dipoles in the ferroelectric material)
then more charge is moved than if the cell was not flipped.
This can be detected and amplified by sense amplifiers.
Reading destroys the contents of a cell which must therefore
be written back after a read. This is similar to the
precharge operation in DRAM, though it only needs to be done
after a read rather than periodically as with DRAM refresh.
In fact it is most like the operation of ferrite core
memory.
FRAM has similar applications to EEPROM, but can be written
much faster. The simplicity of the memory cell promises high
density devices which can compete with DRAM.
RAMTRON is the company behind FRAM.
(1997-02-17)
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Common Misspellings > |
fram rfram rfam frfam ram ffram farm frarm fam frram frma frama frm fraam frmam fra framm eram feram efram rram frram rfram tram ftram tfram dram fdram dfram gram fgram gfram cram fcram cfram vram fvram vfram bram fbram bfram ram f ram fram f4am fr4am f4ram f$am fr$am f$ram f5am fr5am f5ram feam fream feram ftam frtam ftram fdam frdam fdram ffam frfam ffram fgam frgam fgram frqm fraqm frqam frwm frawm frwam frsm frasm frsam frxm fraxm frxam frzm frazm frzam fr m fra m fr am frem frim from frum fraj framj frajm frak framk frakm fral framl fralm fran framn franm fra fram fra m Definition commonly spelled as: Defanition or Defenition, Synonym as: Synonim, Sinonym or Sinonim, Thesaurus as: Thesorus or Thesauris, Dictionary as: Dictionery or Dictionry and Define is usually not misspelled. What does mispell meen? It Meens...
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