Codec (Coding And Decoding); Ddr (Double Data Rated) Sdram; Dimm (Dual In Line Memory Module); Dma (Direct Memory Access) - AOpen AX45-533 Max Online Manual
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Normally, CODEC means a circuit that can do digital to analog conversion and also the analog to digital conversion. It is part of
sound/modem solution.
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DDR SDRAM utilizes the existing DRAM infrastructure and technology while doubling the nominal bandwidth available to systems in an
easy to design and simple to adopt way. Initially a perfect solution for memory intensive server and workstation applications, DDR low cost
and low voltage will ultimately make it an ideal solution for all segments of the PC market, high performance desktop and mobile PCs,
Value PCs and even Internet Appliances and mobile devices.
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DIMM socket has total 168-pin and supports 64-bit data. It can be single or double side, the golden finger signals on each side of PCB are
different, and that is why it was called Dual In Line. Almost all DIMMs are made by SDRAM, which operate at 3.3V. Note that some old
DIMMs are made by
FPM/EDO
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Channel for communications between the memory and surrounding devices.
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and only operate at 5V. Do not confuse them with SDRAM DIMM.
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