MT41J128M16HA-125 Datasheet, PDF (76/206 Pages) Micron Technology – Differential bidirectional data strobe

Table 51: Electrical Characteristics and AC Operating Conditions (Continued)
Notes 1–8 apply to the entire table
Parameter
WRITE with auto
BL8 (OTF, MRS)
precharge command to BC4OTF
power-down entry
BC4MRS
DLL on, any valid command, or DLL off to
commands not requiring locked DLL
Precharge power-down with DLL off to
commands requiring a locked DLL
R_TT synchronous turn-on delay
R_TT synchronous turn-off delay
R_TT turn-on from ODTL on reference
R_TT turn-off from ODTL off reference
Asynchronous R_TT turn-on delay
(power-down with DLL off)
Asynchronous R_TT turn-off delay
(power-down with DLL off)
ODT HIGH time with WRITE command and
BL8
ODT HIGH time without WRITE command or
with WRITE command and BC4
R_TT,nom-to-R_TT(WR) change skew
R_TT(WR)-to-R_TT,nom change skew - BC4
R_TT(WR)-to-R_TT,nom change skew - BL8
R_TT dynamic change skew
First DQS, DQS# rising edge
DQS, DQS# delay
Write leveling setup from rising CK, CK#
crossing to rising DQS, DQS# crossing
Symbol
t_WRAP-
DEN
t_WRAP-
DEN
t_XP
t_XPDLL
ODTLon
ODTLoff
t_AON
t_AOF
t_AONPD
t_AOFPD
ODTH8
ODTH4
ODTLcnw
ODTLcwn4
ODTLcwn8
t_ADC
t_WLMRD
t_WLDQSEN
t_WLS
DDR3-800
Min Max
DDR3-1066
DDR3-1333
Min Max Min Max
MIN = WL + 4 + WR + 1
DDR3-1600
Min Max
MIN = WL + 2 + WR + 1
Power-Down Exit Timing
MIN = greater of 3CK or 7.5ns;
MAX = n/a
MIN = greater of 3CK or 6ns;
MAX = n/a
MIN = greater of 10CK or 24ns; MAX = n/a
ODT Timing
CWL + AL - 2CK
CWL + AL - 2CK
–400 400 –300 300 –250 250 –225 225
0.3
0.7
0.3
0.7
0.3
0.7
0.3
0.7
MIN = 2; MAX = 8.5
MIN = 2; MAX = 8.5
MIN = 6; MAX = n/a
MIN = 4; MAX = n/a
Dynamic ODT Timing
WL - 2CK
4CK + ODTLoff
6CK + ODTLoff
0.3
0.7
0.3
0.7
0.3
0.7
0.3
0.7
Write Leveling Timing
40
–
40
–
40
–
40
–
25
–
25
–
25
–
25
–
325
–
245
–
195
–
165
–
Unit Notes
CK
CK
CK
CK
28
CK
38
CK
40
ps 23, 38
CK 39, 40
ns
38
ns
40
CK
CK
CK
CK
CK
CK
39
CK
CK
ps