k4b2g0846b Samsung Semiconductor, Inc., k4b2g0846b Datasheet - Page 34

• Manufacturer Part Number: k4b2g0846b
• Description: 2gb B-die Ddr3 Sdram Specification
• Manufacturer: Samsung Semiconductor, Inc.

K4B2G04(08/16)46B
[Table 33] IDD1 Measurement - Loop Pattern
Note :
1. DM must be driven LOW all the time. DQS, DQS are used according to RD Commands, otherwise MID-LEVEL.
2. Burst Sequence driven on each DQ signal by Read Command. Outside burst operation, DQ signals are MID-LEVEL.
[Table 34] IDD2 and IDD3N Measurement - Loop Pattern
Note :
1. DM must be driven Low all the time. DQS, DQS are MID-LEVEL.
2. DQ signals are MID-LEVEL.
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
1*nRC + nRCD
1*nRC + nRAS
1*nRC + 1, 2
1*nRC + 3, 4
1*nRC+0
10*nRC
12*nRC
14*nRC
2*nRC
4*nRC
6*nRC
8*nRC
nRCD
nRAS
12-15
16-19
20-23
24-27
28-31
8-11
4-7
1,2
3,4
...
...
...
...
...
...
0
0
1
2
3
repeat pattern 1...4 until nRCD- 1, truncate if necessary
repeat pattern 1...4 until nRAS - 1, truncate if necessary
repeat pattern 1...4 until nRC - 1, truncate if necessary
repeat pattern nRC + 1,..., 4 until nRC + nRCD - 1, truncate if necessary
repeat pattern nRC + 1,..., 4 until nRC +nRAS - 1, truncate if necessary
repeat pattern nRC + 1,..., 4 until 2 * nRC - 1, truncate if necessary
repeat Sub-Loop 0, use BA[2:0] = 1 instead
repeat Sub-Loop 0, use BA[2:0] = 2 instead
repeat Sub-Loop 0, use BA[2:0] = 3 instead
repeat Sub-Loop 0, use BA[2:0] = 4 instead
repeat Sub-Loop 0, use BA[2:0] = 5 instead
repeat Sub-Loop 0, use BA[2:0] = 6 instead
repeat Sub-Loop 0, use BA[2:0] = 7 instead
repeat Sub-Loop 0, use BA[2:0] = 1 instead
repeat Sub-Loop 0, use BA[2:0] = 2 instead
repeat Sub-Loop 0, use BA[2:0] = 3 instead
repeat Sub-Loop 0, use BA[2:0] = 4 instead
repeat Sub-Loop 0, use BA[2:0] = 5 instead
repeat Sub-Loop 0, use BA[2:0] = 6 instead
repeat Sub-Loop 0, use BA[2:0] = 7 instead
ACT
D, D
D, D
PRE
ACT
D, D
PRE
D, D
RD
RD
D
D
D
D
1
0
1
1
0
0
0
1
1
0
0
1
1
1
1
0
0
1
1
0
0
0
1
1
0
0
0
1
1
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1
1
0
1
0
1
1
0
1
0
1
0
0
1
1
1
0
1
1
0
1
0
1
1
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
00
00
00
00
00
00
00
00
00
00
00
00
00
00
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2Gb DDR3 SDRAM
Rev. 1.0 December 2008
0
0
0
0
0
F
F
F
F
F
0
0
F
F
0
0
0
0
0
0
0
0
0
0
0
0
0
0
00000000
00110011
-
-
-
-
-
-
-
-
-
-
-
-