DDR2 SDRAM

Reading: D D earl two
Full spelling: Double Data Rate 2
Field:
Semiconductor > memory > RAM > DDR2

The standard of SDRAM which accelerates DDR SDRAM which JEDEC decides in 2003. Electric power consumption is less than DDR with the high performance. There is no compatibility of DDR, does not put DDR2 memory module in the DDR socket and/or the opposite is not achieved. After DDR2 appearing, calling the thing of conventional DDR “DDR1”, there are times when you distinguish. “DDR2-400” of 400MHz operation and “DDR2-533” of 533MHz operation commercialized for the first time in 2004. In the future as those which keep becoming standard of memory technology of the personal computer in place of DDR it is expected.

DDR200 <PC1600>

Field:
Semiconductor > memory > RAM > DDR200

At one of types of the memory of DDR SDRAM, the external clock of 100MHz (FSB) the specification which corresponds.

Those which as for PC1600 with standard of memory module, “1600” you call as for the number the corresponding clock frequency like “PC100” (as for PC100 correspondence) are not to 100MHz, take from 1.6GB/s of maximum data rate. It is said that because it tries to make bigger number than PC600/700/800 of Direct RDRAM which competes with DDR SDRAM, it became this kind of inscription. Actually as for data rate around channel 1 equality to PC800.

DDR200 with standard of the memory chip which corresponds, time clock drive of 100MHz (DDR) has shown the fact that it is possible

DDR2-400 <PC2-3200>

Reading: D D earl two it is the [hi] [ya] [ku]
Field:
Semiconductor > memory > RAM > DDR2-400

At one of types of the memory of DDR2 SDRAM, the external clock to 200MHz (FSB) the specification which corresponds.

PC2-3200 with standard of memory module, has shown the fact that maximum data rate is 3.2GB/s. DDR2-400 with standard of the memory chip which corresponds, time data rate drive of 200MHz (DDR) has shown the fact that it is correspondence possible.

DDR2-533 <PC2-4200>

Reading: D D earl two -
Alias:
PC2-4300
Field:
Semiconductor > memory > RAM > DDR2-533

At one of types of the memory of DDR2 SDRAM, the external clock to 266MHz (FSB) the specification which corresponds.

PC2-4200 with standard of memory module, has shown the fact that maximum data rate is approximately 4.27GB/s. DDR2-533 with standard of the memory chip which corresponds, time data rate drive of 266MHz (DDR) has shown the fact that it is correspondence possible.

DDR266 <PC2100>

Field:
Semiconductor > memory > RAM > DDR266

At one of types of the memory of DDR SDRAM, the external clock of 133MHz (FSB) the specification which corresponds.

PC2100 with standard of memory module, has shown the fact that maximum data rate is approximately 2.13GB/s. DDR266 with standard of the memory chip which corresponds, time data rate drive of 133MHz (DDR) has shown the fact that it is correspondence possible.