E1922E20 Datasheet, PDF (13/29 Pages) Elpida Memory – 4G bits DDR3L SDRAM

EDJ4204EFBG, EDJ4208EFBG, EDJ4216EFBG
Table 7: IDD0 Measurement-Loop Pattern
CK,
Sub Cycle Com-
A11
A7 A3 A0
/CK
CKE -Loop number mand /CS /RAS /CAS /WE ODT BA*³ -Am A10 -A9 -A6 -A2
0
ACT 0
0
1
1
0
0
0
0
0 00
1, 2
D, D 1
0
0
0
0
0
0
0
0 00
3, 4
/D, /D 1
1
1
1
0
0
0
0
0 00
…
Repeat pattern 1…4 until nRAS − 1, truncate if necessary
nRAS PRE 0
0
1
0
0
0
0
0
0 00
…
Repeat pattern 1...4 until nRC − 1, truncate if necessary
1 × nRC _{ACT 0}
0
1
1
0
0
0
0
0 F0
0
+0
1 × nRC
D, D 1
0
0
0
0
0
0
0
0 F0
+1, 2
Toggling Static H
1 × nRC
+ 3, 4
…
/D, /D 1
1
1
1
0
0
0
0
0 F0
Repeat pattern nRC + 1,...,4 until 1 × nRC + nRAS − 1, truncate if necessary
1 × nRC _{PRE 0}
0
1
0
0
0
0
0
0 F0
+ nRAS
…
Repeat nRC + 1,...,4 until 2 × nRC − 1, truncate if necessary
1
2 × nRC Repeat Sub-Loop 0, use BA= 1 instead
2
4 × nRC Repeat Sub-Loop 0, use BA= 2 instead
3
6 × nRC Repeat Sub-Loop 0, use BA= 3 instead
4
8 × nRC Repeat Sub-Loop 0, use BA= 4 instead
5
10 × nRC Repeat Sub-Loop 0, use BA= 5 instead
6
12 × nRC Repeat Sub-Loop 0, use BA= 6 instead
7
14 × nRC Repeat Sub-Loop 0, use BA= 7 instead
Notes: 1.
2.
3.
4.
DM must be driven low all the time. DQS, /DQS are MID-LEVEL.
DQ signals are MID-LEVEL.
BA: BA0 to BA2.
Am: m means Most Significant Bit (MSB) of Row address.
Data*²
Data Sheet E1922E20 (Ver. 2.0)
13