K4B4G0446B Datasheet, PDF (33/59 Pages) Samsung semiconductor – DDP 4Gb B-die DDR3 SDRAM Specification

K4B4G0446B
K4B4G0846B
[ Table 33 ] IDD1 Measurement - Loop Pattern¹
DDP 4Gb DDR3 SDRAM
0
0
ACT
0 0 1 1 0 0 00 0 0 0 0
1,2
D, D
1 0 0 0 0 0 00 0 0 0 0
3,4
D, D
1 1 1 1 0 0 00 0 0 0 0
...
nRCD
repeat pattern 1...4 until nRCD- 1, truncate if necessary
RD
0 1 0 1 0 0 00 0 0 0 0
...
repeat pattern 1...4 until nRAS - 1, truncate if necessary
nRAS
PRE
0 0 1 0 0 0 00 0 0 0 0
...
repeat pattern 1...4 until nRC - 1, truncate if necessary
1*nRC+0
ACT
0 0 1 1 0 0 00 0 0 F 0
1*nRC + 1, 2
D, D
1 0 0 0 0 0 00 0 0 F 0
1*nRC + 3, 4
D, D
1 1 1 1 0 0 00 0 0 F 0
...
repeat pattern nRC + 1,..., 4 until nRC + nRCD - 1, truncate if necessary
1*nRC + nRCD
RD
0 1 0 1 0 0 00 0 0 F 0
...
repeat pattern nRC + 1,..., 4 until nRC +nRAS - 1, truncate if necessary
1*nRC + nRAS
PRE
0 0 1 0 0 0 00 0 0 F 0
...
repeat pattern nRC + 1,..., 4 until 2 * nRC - 1, truncate if necessary
1
2*nRC
repeat Sub-Loop 0, use BA[2:0] = 1 instead
2
4*nRC
repeat Sub-Loop 0, use BA[2:0] = 2 instead
3
6*nRC
repeat Sub-Loop 0, use BA[2:0] = 3 instead
4
8*nRC
repeat Sub-Loop 0, use BA[2:0] = 4 instead
5
10*nRC
repeat Sub-Loop 0, use BA[2:0] = 5 instead
6
12*nRC
repeat Sub-Loop 0, use BA[2:0] = 6 instead
7
14*nRC
repeat Sub-Loop 0, use BA[2:0] = 7 instead
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 Pattern¹
-
-
-
00000000
-
-
-
-
00110011
-
0
0
D
1 0 0 0 0 0 00 0 0 0 0
-
1
D
1 0 0 0 0 0 00 0 0 0 0
-
2
D
1 1 1 1 0 0 00 0 0 F 0
-
3
D
1 1 1 1 0 0 00 0 0 F 0
-
1
4-7
repeat Sub-Loop 0, use BA[2:0] = 1 instead
2
8-11
repeat Sub-Loop 0, use BA[2:0] = 2 instead
3
12-15
repeat Sub-Loop 0, use BA[2:0] = 3 instead
4
16-19
repeat Sub-Loop 0, use BA[2:0] = 4 instead
5
20-23
repeat Sub-Loop 0, use BA[2:0] = 5 instead
6
24-27
repeat Sub-Loop 0, use BA[2:0] = 6 instead
7
28-31
repeat Sub-Loop 0, use BA[2:0] = 7 instead
Note :
1. DM must be driven Low all the time. DQS, DQS are MID-LEVEL.
2. DQ signals are MID-LEVEL.
Page 33 of 59
Rev. 1.0 March 2009