MT41J128M8 MDTIC [Micon Design Technology Corporation], MT41J128M8 Datasheet - Page 75

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

PDF: 09005aef826aa906/Source: 09005aef82a357c3
1Gb_DDR3_3.fm - Rev. D 8/1/08 EN
17. The cumulative jitter error (
18.
19. These parameters are measured from a data signal (DM, DQ0, DQ1, and so forth)
20. The setup and hold times are listed converting the base specification values (to which
21. Special setup and hold derating and different
22. When the device is operated with input clock jitter, this parameter needs to be der-
23. Single-ended signal parameter.
24. The DRAM output timing is aligned to the nominal or average clock. Most output
25. The maximum preamble is bound by
26. These parameters are measured from a data strobe signal (DQS, DQS#) crossing to its
27. The
28. The maximum postamble is bound by
29. Commands requiring a locked DLL are: READ (and RDAP) and synchronous ODT
30.
31. These parameters are measured from a command/address signal transition edge to
32. For these parameters, the DDR3 SDRAM device supports
33. During READs and WRITEs with auto precharge, the DDR3 SDRAM will hold off the
50, is the amount of clock time allowed to accumulate consecutively away from the
average clock over n number of clock cycles.
t
2 V/ns differential DQS, DQS# slew rate.
transition edge to its respective data strobe signal (DQS, DQS#) crossing.
derating tables apply) to V
rate of 1 V/ns, are for reference only.
AC threshold.
ated by the actual
SDRAM input clock).
parameters must be derated by the actual jitter error when input clock jitter is
present, even when within specification. This results in each parameter becoming
larger. The following parameters are required to be derated by subtracting
t
The following parameters are required to be derated by subtracting
t
parameter
derated by subtracting
respective clock signal (CK, CK#) crossing. The specification values are not affected by
the amount of clock jitter applied, as these are relative to the clock signal crossing.
These parameters should be met whether clock jitter is present.
commands. In addition, after any change of latency
t
address slew rate and 2 V/ns CK, CK# differential slew rate.
its respective clock (CK, CK#) signal crossing. The specification values are not affected
by the amount of clock jitter applied as the setup and hold times are relative to the
clock signal crossing that latches the command/address. These parameters should be
met whether clock jitter is present.
RU(
isfied. For example, the device will support
input clock jitter specifications are met. This means for DDR3-800 6-6-6, of which
t
clock jitter specifications are met. That is, the PRECHARGE command at T0 and the
ACTIVATE command at T0 + 6 are valid even if six clocks are less than 15ns due to
input clock jitter.
internal PRECHARGE command until
DS (base) and
ERR
DQSCK (MAX),
IS (base) and
RP = 15ns, the device will support
t
t
PARAM [ns]/
10PER
DQSCK
(MAX):
t
RPRE (MIN) is derated by subtracting
DLL
t
IH (base) values are for a single-ended 1 V/ns control/command/
t
DH (base) values are for a single-ended 1 V/ns DQ slew rate and
t
_
HZ (MAX),
t
DIS
t
CK[AVG] [ns]), assuming all input clock jitter specifications are sat-
t
DQSCK (MIN),
JIT
parameter begins CL + AL - 1 cycles after the READ command.
PER
t
JIT
of the input clock (output deratings are relative to the
REF
PER
75
t
t
ERRn
LZ (DQS) MAX,
when the slew rate is 1 V/ns. These values, with a slew
(MIN).
PER
t
LZ (DQS) MIN,
t
nRP = RU(
Micron Technology, Inc., reserves the right to change products or specifications without notice.
), where n is the number of clocks between 2 and
t
LZDQS (MAX).
t
t
RAS (MIN) has been satisfied.
HZDQS (MAX).
t
nRP (nCK) = RU(
t
LZ (DQ) MAX, and
t
1Gb: x4, x8, x16 DDR3 SDRAM
t
VAC numbers apply when using 150mV
RP/
t
JIT
t
t
LZ (DQ) MIN, and
CK[AVG]) = 6 as long as the input
t
PER
XPDLL, timing must be met.
(MAX), while
t
nPARAM (nCK) =
©2006 Micron Technology, Inc. All rights reserved.
t
RP/
Speed Bin Tables
t
AON (MAX). The
t
CK[AVG]) if all
t
ERR
t
t
AON (MIN).
RPRE (MAX) is
10PER
(MIN):