EM47DM0888SBA_15 Datasheet, PDF (20/39 Pages) Eorex Corporation – Double DATA RATE 3 SDRAM

EM47DM0888SBA
AC Operating Test Characteristics
(VDD, VDDQ=1.5V±0.075V)
Symbol
tREFPDEN
tMRSPDEN
tCPDED
tACTPDEN
tPRPDEN
tRDPDEN
tAON
tAONPD
tAOF
tAOFPD
ODTH4
ODTH8
Speed Bin
CL-nRCD-nRP
Parameter
Timing of REF command to power-
down entry
Timing of MRS command to power-
down entry
Command pass disable delay
Timing of ACT command to power-
down entry
Timing of PRE command to power-
down entry
Timing of RD/RDA command to
power-down entry
RTT turn-on
Asynchronous RTT turn-on delay
(Power-down with DLL frozen)
RTT_Nom and RTT_WR turn-off time
from ODTLoff reference
Asynchronous RTT turn-off delay
(Power-down with DLL frozen)
ODT high time without write
command or with write command and
BC4
ODT high time with write command
and BL8
tADC
RTT dynamic change skew
tZQinit
tZQoper
tZQCS
tWLMRD
tWLDQSEN
tRTW
tRTW
tRAP
Power-up and reset calibration time
Normal operation full calibration time
Normal operation short calibration
time
First DQS pulse rising edge after
write leveling mode is programmed
DQS./DQS delay after write leveling
mode is programmed
Read to write command delay
(BC4MRS, BC4OTF)
Read to write command delay
(BL8MRS, BL8OTF)
Active to read with auto precharge
command delay
-150
(DDR3-1333)
9-9-9
Min. Max.
1
-
tMOD (min) -
1
-
1
-
1
-
RL + 4 +1 -
-250
250
2
8.5
0.3
0.7
2
8.5
4
-
6
-
0.3
0.7
512
-
256
-
64
-
40
-
25
-
RL + tCCD/2 +
-
2nCK-WL
RL + tCCD/2 +
-
2nCK-WL
tRCD min
-
-187
(DDR3-1066)
7-7-7
Min. Max.
1
-
tMOD (min)
-
1
-
1
-
1
-
RL + 4 +1 -
-300
300
2
8.5
0.3
0.7
2
8.5
4
-
6
-
0.3
0.7
512
-
256
-
64
-
40
-
25
-
RL + tCCD/2 +
-
2nCK-WL
RL + tCCD/2 +
-
2nCK-WL
tRCD min
-
Units
nCK
nCK
nCK
nCK
nCK
ps
ns
tCK
(avg)
ns
nCK
nCK
tCK
(avg)
nCK
nCK
nCK
nCK
nCK
Notes
20,2
1
20
20
7
8
23
3
3
Oct. 2014
20/39
www.eorex.com