Datasheet

Table 86. IDD4R, IDDR4RA, IDD4RB and IDDQ4R Measurement - Loop Pattern
[1]
CK/
CK#
CKE
Sub-
Loop
Cycle
Number
CMD
CS#
ACT#
RAS#/
A16
CAS#/
A15
WE#/
A14
ODT
BG0-1
[2]
BA0-1
A12/
BC#
A13,
A11
A10
A9-A7
A6-A3
A2-A0
Data
[3]
Toggling
Static High
0
0
RD
0
1
1
0
1
0
0
0
0
0
0
0
0
0
D0=00,
D1=FF
D2=FF,
D3=00
D4=FF,
D5=00
D6=00,
D7=FF
0
1
D
1
0
0
0
0
0
0
0
0
0
0
0
0
0
-
0
2-3
D#,D#
1
1
1
1
1
0
3
[2]
3
0
0
0
7
F
0
-
1
4
RD
0
1
1
0
1
0
1
1
0
0
0
7
F
0
D0=FF,
D1=00
D2=00,
D3=FF
D4=00,
D5=FF
D6=FF,
D7=00
1
5
D
1
0
0
0
0
0
0
0
0
0
0
0
0
0
-
1
6-7
D#,D#
1
1
1
1
1
0
3
[2]
3
0
0
0
7
F
0
-
2
8-11
Repeat sub-loop 0, use BG[1:0]=0, BA[1:0]=2 instead
3
12-15
Repeat sub-loop 1, use BG[1:0]=1, BA[1:0]=3 instead
4
16-19
Repeat sub-loop 0, use BG[1:0]=0, BA[1:0]=1 instead
5
20-23
Repeat sub-loop 1, use BG[1:0]=1, BA[1:0]=2 instead
6
24-27
Repeat sub-loop 0, use BG[1:0]=0, BA[1:0]=3 instead
7
28-31
Repeat sub-loop 1, use BG[1:0]=1, BA[1:0]=0 instead
8
32-35
Repeat sub-loop 0, use BG[1:0]=2, BA[1:0]=0 instead
For x4
and
x8 only
9
36-39
Repeat sub-loop 1, use BG[1:0]=3, BA[1:0]=1 instead
10
40-43
Repeat sub-loop 0, use BG[1:0]=2, BA[1:0]=2 instead
11
44-47
Repeat sub-loop 1, use BG[1:0]=3, BA[1:0]=3 instead
12
48-51
Repeat sub-loop 0, use BG[1:0]=2, BA[1:0]=1 instead
13
52-55
Repeat sub-loop 1, use BG[1:0]=3, BA[1:0]=2 instead
14
56-59
Repeat sub-loop 0, use BG[1:0]=2, BA[1:0]=3 instead
15
60-63
Repeat sub-loop 1, use BG[1:0]=3, BA[1:0]=0 instead
Note 1. DQS, DQS# are used according to RD Commands, otherwise V
DDQ
.
Note 2. BG1 is don’t care and AL is not supported for x16 device.
Note 3. Burst Sequence driven on each DQ signal by Read Command.
AS4C256M16D4
Confidential
- 174 of 201 -
Rev.1.0 Aug.2019