EDJ2108EEBG, EDJ2116EEBG
Table 7: IDD0 Measurement-Loop Pattern
CK,
/CK
Sub
Cycle
Com-
A11
A7
A3
A0
CKE
-Loop number mand /CS /RAS /CAS /WE ODT BA*3 -Am A10 -A9 -A6 -A2 Data*2
0
ACT
D, D
/D, /D
0
1
1
0
0
1
1
0
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1, 2
3, 4
…
Repeat pattern 1…4 until nRAS − 1, truncate if necessary
PRE
Repeat pattern 1...4 until nRC − 1, truncate if necessary
nRAS
…
0
0
1
0
0
0
0
0
0
0
0
1 × nRC
+ 0
ACT
D, D
/D, /D
0
1
1
0
0
1
1
0
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
F
F
F
0
0
0
0
1 × nRC
+1, 2
1 × nRC
+ 3, 4
Toggling Static H
…
Repeat pattern nRC + 1,...,4 until 1 × nRC + nRAS − 1, truncate if necessary
PRE
Repeat nRC + 1,...,4 until 2 × nRC − 1, truncate if necessary
1 × nRC
+ nRAS
0
0
1
0
0
0
0
0
0
F
0
…
1
2
3
4
5
6
7
2 × nRC Repeat Sub-Loop 0, use BA= 1 instead
4 × nRC Repeat Sub-Loop 0, use BA= 2 instead
6 × nRC Repeat Sub-Loop 0, use BA= 3 instead
8 × nRC Repeat Sub-Loop 0, use BA= 4 instead
10 × nRC Repeat Sub-Loop 0, use BA= 5 instead
12 × nRC Repeat Sub-Loop 0, use BA= 6 instead
14 × nRC Repeat Sub-Loop 0, use BA= 7 instead
Notes: 1. DM must be driven low all the time. DQS, /DQS are MID-LEVEL.
2. DQ signals are MID-LEVEL.
3. BA: BA0 to BA2.
4. Am: m means Most Significant Bit (MSB) of Row address.
Data Sheet E1750E31 (Ver. 3.1)
13
ELPIDA [ ELPIDA MEMORY ]
