MT41J128M8 MDTIC [Micon Design Technology Corporation], MT41J128M8 Datasheet - Page 44

• Manufacturer Part Number: MT41J128M8
• Description: 1Gb: x4, x8, x16 DDR3 SDRAM
• Manufacturer: MDTIC [Micon Design Technology Corporation]

Table 25:
Figure 20: Single-Ended Requirements for Differential Signals
PDF: 09005aef826aa906/Source: 09005aef82a357c3
1Gb_DDR3_3.fm - Rev. D 8/1/08 EN
Parameter/Condition
Differential input voltage
Differential input midpoint voltage
Differential input voltage logic high
Differential input voltage logic low
Differential input crossing voltage relative
to V
Differential input crossing voltage relative
to V
DD
DD
/2 for CK, CK#
/2 for DQS, DQS#
Differential Input Operating Conditions (CK, CK# and DQS, DQS#)
All voltages are referenced to V
Notes:
1. V
2. The typical value of V
3. Reference is V
4. Clock is referenced to V
5. Differential input slew rate = 2 V/ns.
6. The V
V
DD
the true input (CK, DQS) level and V
V
and V
ferential input signals must cross.
extended range is only allowed when the following conditions are met: The single-ended
input signals are monotonic, have the single-ended swing V
±250mV, and the differential slew rate of CK, CK# is greater than 3 V/ns.
V
/2 or V
MP
MP
V
V
DD
V
SS
SEL
SEH
(
(
or V
DC
DC
or V
IX
(MAX)
IX
(MIN)
DD
) specifies the input differential common mode voltage (V
) is expected to be about 0.5 × V
(
extended range (±175mV) is allowed only for the clock. Additionally, the V
DD
AC
Q/2
SS
Q
Q
) is expected to track variations in V
REF
SS
CA(
Symbol
V
V
V
MP
IHDIFF
DC
ILDIFF
V
V
IX
IN
IX
(
) for clock and for V
DC
(
DD
AC
)
) is expected to be about 0.5 × V
and V
44
V
SEH
SS
. Data strobe is referenced to V
V
V
V
CP
REF
REF
REF
V
SS
is the complementary input (CK#, DQS#) level.
Micron Technology, Inc., reserves the right to change products or specifications without notice.
DD
(
(
(
–400
Electrical Specifications – DC and AC
Min
Q - 400
650
200
DC
DC
DC
Q.
REF
) - 150
) - 175
) - 150
DQ(
CK or DQS
DD
1Gb: x4, x8, x16 DDR3 SDRAM
. V
DC
IX
) for strobe.
(
AC
V
V
V
V
SEL
) indicates the voltage at which dif-
REF
REF
REF
V
V
DD
DD
DD
(
(
(
SEL
Max
–200
DC
DC
DC
850
of the transmitting device,
+ 400
+ 400
, V
) + 150
) + 175
) + 150
©2006 Micron Technology, Inc. All rights reserved.
TR
SEH
DD
+ V
Q and V
of at least V
CP
)/2 where V
SS
Q.
Units
mV
mV
mV
mV
mV
mV
mV
DD
IX
/2
TR
is