EDJ1108BDBG Datasheet, PDF (57/147 Pages) Elpida Memory – 1G bits DDR3 SDRAM

ODT AC Electrical Characteristics [DDR3-1066]
-AE
Data rate (Mbps)
1066
Parameter
Symbol
min.
RTT turn-on
tAON
Asynchronous RTT turn-on delay
(power-down with DLL frozen)
tAONPD
RTT_Nom and RTT_WR
from ODTLoff reference
turn-off
time
tAOF
ODT turn-off (power-down mode) tAOFPD
ODT to power-down entry/exit
latency
tANPD
ODT turn-on Latency
ODTLon
–300
2
0.3
2
WL – 1.0
WL – 2.0
ODT turn-off Latency
ODT Latency for changing from
RTT_Nom to RTT_WR
ODT Latency for change from
RTT_WR to RTT_Nom
(BC4)
ODT Latency for change from
RTT_WR to RTT_Nom
(BL8)
ODT high time without WRIT
command or with WRIT command
and BC4
ODT high time with WRIT command
and BL8
RTT dynamic change skew
ODTLoff
ODTLcnw
ODTLcwn4
ODTLcwn8
ODTH4
ODTH8
tADC
WL – 2.0
WL – 2.0


4
6
0.3
Power-up and reset calibration time tZQinit
512
Normal operation full calibration
time
tZQoper
256
Normal operation short
calibration time
tZQCS
64
Write Leveling Characteristics [DDR3-1066]
Parameter
Symbol
First DQS pulse rising edge after
write leveling mode is programmed
DQS, /DQS delay after write leveling
mode is programmed
Write leveling setup time from rising
CK, /CK crossing to rising DQS,
/DQS crossing
Write leveling hold time from rising
DQS, /DQS crossing to rising CK,
/CK crossing
tWLMRD
tWLDQSEN
tWLS
tWLH
Write leveling output delay
tWLO
Write leveling output error
tWLOE
-AE
1066
min.
40
25
245
245
0
0
EDJ1108BDBG
max.
300
8.5
0.7
8.5

WL – 2.0
WL – 2.0
WL – 2.0
4 + ODTLoff
6 + ODTLoff


0.7



Unit
Notes
ps
7, 12, 37
ns
tCK (avg) 8, 12, 37
ns
nCK
nCK
nCK
nCK
nCK
nCK
nCK
nCK
tCK (avg) 12, 37
nCK
nCK
nCK
30
max.




9
2
Unit
nCK
nCK
ps
Notes
3
3
ps
ns
ns
Data Sheet E1544E30 (Ver. 3.0)
57