Datasheet

DTM63323

1 GB - 128Mx64, 240-Pin Unbuffered DDR2 DIMM

Latency = 5 - X

19 DIMM Mechanical Characteristics. Max. module thickness. (mm) x </= 4.10 0x01

DIMM type information 0x02

Regular RDIMM (133.35mm) -

Regular UDIMM (133.35mm) - X

SODIMM (67.6mm) -

Micro-DIMM (45.5mm) -

Mini RDIMM (82.0mm) -

Mini UDIMM (82.0mm) -

TBD -

SDRAM Module Attributes (Refer to Byte20 for DIMM type information). 0x00

Number of active registers on the DIMM (N/A for UDIMM) - 1

Number of PLL on the DIMM (N/A for UDIMM) -

21 FET Switch External Enable - No

TBD -

Analysis probe installed - No

TBD -

SDRAM Device Attributes: General 0x03

Includes Weak Driver - X

50 ohm ODT - X

TBD -

23 Minimum Clock Cycle Time at Reduced CAS Latency, CL = X-1 (ns) 3.75 0x3D

24 Maximum Data Access Time (tAC ) from Clock at CL = X- 1 (ns) 0.45 0x45

25 Minimum Clock Cycle Time at CL = X-2 (ns) 5 0x50

26 Maximum Data Access Time (tAC ) from Clock at CL = X-2 (ns) 0.45 0x45

27 Minimum Row Precharge Time (tRP ) (ns) 15 0x3C

28 Minimum Row Active to Row Active Delay (tRRD ) (ns) 7.5 0x1E

29 Minimum RAS to CAS Delay (tRCD ) (ns) 15 0x3C

30 Minimum Active to Precharge Time (tRAS ) (ns) 45 0x2D

31 Module Rank Density 512MB 0x80

32 Address and Command Setup Time Before Clock (tIS) (ns) 0.2 0x20

33 Address and Command Hold Time After Clock (tIH) (ns) 0.27 0x27