NCP, ATP & Aeneon memory modules; DDR3, DDR2, DDR & SDRAM

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NCP DDR3 SDRAM (For desktop)

DDR3 is part of the SDRAM family of technologies and is an evolutionary improvement over its predecessor, DDR2 SDRAM.

It enables faster bus speeds and higher throughput as compared to the DDR2 as it is able to run its bus at four times the speed of the memory cells it contains.

DDR3 SDRAM devices are able to provide data transfer rate up to 1600Mbps at 1.5 volts which increases system performance at low power consumption.

NCP DDR3 memory modules are expected to be in production by end of 2007. The initial launch will include both the DDR3-1066 and DDR3-1333 at 1.5V.

DDR3 Feature Comparison


	DDR	DDR2	*DDR3¹**
Data Rate	200 ~ 400 Mbps	400 ~ 800 Mbps	800 ~ 1600 Mbps *²
System Assumption	4slots (8loads)	2slots (4loads)	2slots (4loads) *¹
Vdd/Vddq	2.5V ± 0.2V	1.8V ± 0.1V	1.5V ± 0.075V
Interface	SSTL_2	SSTL_18	SSTL_15
Package	66TSOP2 60BGA	60 BGA for x4/x8 84 BGA for x16	78 BGA for x4/x8 96 BGA for x16
Source Sync.	Bi-directional DQS (Single ended Default)	Bi-directional DQS (Single./Diff.Option)	Bi-directional DQS (Differential Default)
Burst Length	BL=2,4,8 (2bits Prefetch)	BL=4,8 (4bits Prefetch)	BL=4,8 (8bits Prefetch)
# of Bank	4banks	512Mb: 4banks 1G: 8banks	512Mb/1Gb: 8 banks 2GB/4GB/8GB: tbd
CL/tRCD/tRP	~ 15/15/15ns	~ 15/15/15 ns	~ 12/12/12 ns
Reset	No	No	Yes
ODT	No	Yes	Yes
Driver Calibration	No	Off-Chip Driver Calibration	Self Calibration with ZQ Pin
Leveling	No	No	Yes


Note 1:	DDR3 Key Features have been fixed in JEDEC.
Note 2:	Max. Frequency by DDR3 System Assumption is under discussion. DDR3 supports 1600Mbps under 1slot/channel system. And, the Possibility of DDR3 2-Slot/channel system being discussed in JEDEC.