DDR2 SDRAM
Chips and modules
For use in computers, DDR2 SDRAM is supplied in DIMMs with 240 pins and a single locating notch. Laptop DDR2 SO-DIMMs have 200 pins and often come identified by an additional S in their designation.

DDR2 SDRAM

Section Title: Chips and modules
Table Section Text: For use in computers, DDR2 SDRAM is supplied in DIMMs with 240 pins and a single locating notch. Laptop DDR2 SO-DIMMs have 200 pins and often come identified by an additional S in their designation.

Name	Chip	Bus	Timings	Voltage

Standard	Type	Module	Clock rate (MHz)	Cycle time (ns)	Prefetch	Clock rate (MHz)	Transfer rate (MT/s)	Bandwidth (MB/s)	CL-TRCD-TRP	CAS latency (ns)

DDR2-400	B	PC2-3200	100	10	4 bits	200	400	3200	3-3-3	15	1.8 V

C	4-4-4	20

DDR2-533	B	PC2-4200*	133⅓	7.5	266⅔	533⅓	4266⅔	3-3-3	11.25

C	4-4-4	15

DDR2-667	C	PC2-5300*	166⅔	6	333⅓	666⅔	5333⅓	4-4-4	12

D	5-5-5	15

DDR2-800	C	PC2-6400	200	5	400	800	6400	4-4-4	10

D	5-5-5	12.5

E	6-6-6	15

DDR2-1066	E	PC2-8500*	266⅔	3.75	533⅓	1066⅔	8533⅓	6-6-6	11.25

F	7-7-7	13.125

Sentence(s)

The highest-rated DDR2 SDRAM modules was operated at 200 MHz (400 MT/s).

final_sentence: The highest-rated DDR2 SDRAM modules was operated at 200 MHz (400 MT/s).