Detailed Product Description

Description:

1) DDR 400

2) 184-pin socket type dual in line memory module (DIMM)

3) Data rate: 400Mbps (max.)

4) 2.5 V (SSTL-2 compatible) I/O for DDR I products,

5) Double data rate architecture,

6) Bi-directional, data strobe (DQS) is transmitted/received with data,

    to be used in capturing data at the receiver

7) Data inputs and outputs are synchronized with DQS

8) DQS is edge aligned with data for read, center aligned with data for write

9) Differential clock inputs (CK and CK)

10) DLL aligns DQ and DQS transitions with CK transitions

11)) Commands entered on each positive CK edge, data referenced to both edges of DQS

12) Auto precharge option for each burst access

13) Programmable burst length: 2, 4, 8

14) Programmable/CAS latency (CL): 2.5

15) Programmable output driver strength: normal/weak

16) Refresh cycles: (8192 refresh cycles/64ms)

17) 7.8US maximum average periodic refresh interva

18) 2 variations of refresh

19) Auto refresh

20) Self refresh