Datasheet

Table 83. IDD1, IDD1A and IPP1 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
ACT
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-
0
1-2
D,D
1
0
0
0
0
0
0
0
0
0
0
0
0
0
-
0
3-4
D#,D#
1
1
1
1
1
0
3
[2]
3
0
0
0
7
F
0
-
0
…
Repeat pattern 1...4 until nRCD-AL-1; truncate if necessary
0
nRCD-AL
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
…
Repeat pattern 1...4 until nRAS-1; truncate if necessary
0
nRAS
PRE
0
1
0
1
0
0
0
0
0
0
0
0
0
0
-
0
…
Repeat pattern 1...4 until nRC-1; truncate if necessary
1
1×nRC+0
ACT
0
0
0
1
1
0
1
1
0
0
0
0
0
0
-
1
1×nRC+1,2
D,D
1
0
0
0
0
0
0
0
0
0
0
0
0
0
-
1
1×nRC+3,4
D#,D#
1
1
1
1
1
0
3
[2]
3
0
0
0
7
F
0
-
1
…
Repeat pattern nRC+1...4 until 1×nRC+nRAS-1; truncate if necessary
1
1×nRC
+nRCD-AL
RD
0
1
1
0
1
0
1
1
0
0
0
0
0
0
D0=FF,
D1=00
D2=00,
D3=FF
D4=00,
D5=FF
D6=FF,
D7=00
1
…
Repeat pattern 1...4 until nRAS-1; truncate if necessary
1
1×nRAS+nRAS
PRE
0
1
0
1
0
0
1
1
0
0
0
0
0
0
-
…
Repeat nRC+1...4 until 2×nRC-1; truncate if necessary
2
2×nRC
Repeat sub-loop 0, use BG[1:0]=0, use BA[1:0]=2 instead
3
3×nRC
Repeat sub-loop 1, use BG[1:0]=1, use BA[1:0]=3 instead
4
4×nRC
Repeat sub-loop 0, use BG[1:0]=0, use BA[1:0]=1 instead
5
5×nRC
Repeat sub-loop 1, use BG[1:0]=1, use BA[1:0]=2 instead
6
6×nRC
Repeat sub-loop 0, use BG[1:0]=0, use BA[1:0]=3 instead
8
7×nRC
Repeat sub-loop 1, use BG[1:0]=1, use BA[1:0]=0 instead
9
9×nRC
Repeat sub-loop 1, use BG[1:0]=2, use BA[1:0]=0 instead
For x4
and
x8 only
10
10×nRC
Repeat sub-loop 0, use BG[1:0]=3, use BA[1:0]=1 instead
11
11×nRC
Repeat sub-loop 1, use BG[1:0]=2, use BA[1:0]=2 instead
12
12×nRC
Repeat sub-loop 0, use BG[1:0]=3, use BA[1:0]=3 instead
13
13×nRC
Repeat sub-loop 1, use BG[1:0]=2, use BA[1:0]=1 instead
14
14×nRC
Repeat sub-loop 0, use BG[1:0]=3, use BA[1:0]=2 instead
15
15×nRC
Repeat sub-loop 1, use BG[1:0]=2, use BA[1:0]=3 instead
16
16×nRC
Repeat sub-loop 0, use BG[1:0]=3, use 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. Outside burst operation, DQ signals are V
DDQ
.
AS4C256M16D4
Confidential
- 171 of 201 -
Rev.1.0 Aug.2019