APCPCWM_4828539:WP_0000005WP_0000005
A
P
C
P
C
W
M
_4828539:
W
P
_0000005W
P
_000000
5
Rev. 1.2 / Jul. 2010
27
Refresh parameters by device density
Refresh parameters by device density
Parameter
RTT_Nom Setting
512Mb
1Gb
2Gb
4Gb
8Gb
Units
REF command ACT or
REF command time
tRFC
90
110
160
300
350
ns
Average periodic
refresh interval
tREFI
0
C
T
CASE
85
C
7.8
7.8
7.8
7.8
7.8
us
85
C
T
CASE
95
C
3.9
3.9
3.9
3.9
3.9
us
B48614/178.104.2.80/2010-07-08 11:46