MT41J64M16JT-15E AIT:G Micron, MT41J64M16JT-15E AIT:G Datasheet - Page 49

• Manufacturer Part Number: MT41J64M16JT-15E AIT:G
• Description: DRAM Chip DDR3 SDRAM 1G-Bit 64Mx16 1.5V 96-Pin FBGA
• Manufacturer: Micron

Table 28: R
ODT Sensitivity
Table 29: ODT Sensitivity Definition
ODT Timing Definitions
PDF: 09005aef84491df3
1Gb_AIT_AAT_DDR3_SDRAM.pdf – Rev. C 8/11 EN
Symbol
[9, 6, 2]
1, 0, 0
MR1
R
TT
TT
Effective Impedances (Continued)
0.9 - dR
R
TT
Note:
Note:
Note:
TT
dT × |DT| - dR
If either the temperature or voltage changes after I/O calibration, then the tolerance
limits listed in Table 27 (page 47) and Table 28 can be expected to widen according to
Table 29 and Table 30 (page 49).
Table 30: ODT Temperature and Voltage Sensitivity
ODT loading differs from that used in AC timing measurements. The reference load for
ODT timings is shown in Figure 19. Two parameters define when ODT turns on or off
synchronously, two define when ODT turns on or off asynchronously, and another de-
fines when ODT turns on or off dynamically. Table 31 outlines and provides definition
and measurement references settings for each parameter (see Table 32 (page 50)).
ODT turn-on time begins when the output leaves High-Z and ODT resistance begins to
turn on. ODT turn-off time begins when the output leaves Low-Z and ODT resistance
begins to turn off.
1. Values assume an RZQ of 240
1.
1.
R
R
Resistor
Min
TT20(PD40)
TT20(PU40)
T = T - T(@ calibration), V = V
T = T - T(@ calibration), V = V
Change
dR
dR
TT
dV × |DV|
TT
TT
dV
dT
V
IL(AC)
0.2 × V
0.5 × V
0.8 × V
0.2 × V
0.5 × V
0.8 × V
V
to V
OUT
DDQ
DDQ
DDQ
DDQ
DDQ
DDQ
IH(AC)
49
1.6 + dR
1Gb: x8, x16 Automotive DDR3 SDRAM
DDQ
DDQ
Min
0
0
TT
Min
dT × |DT| + dR
- V
- V
0.6
0.9
0.9
0.9
0.9
0.6
0.9
Micron Technology, Inc. reserves the right to change products or specifications without notice.
DDQ
DDQ
Max
(@ calibration) and V
(@ calibration) and V
TT
Nom
1.0
1.0
1.0
1.0
1.0
1.0
1.0
dV × |DV|
Max
0.15
1.5
ODT Characteristics
‹ 2010 Micron Technology, Inc. All rights reserved.
DD
DD
Max
= V
= V
1.1
1.1
1.4
1.4
1.1
1.1
1.6
RZQ/(2, 4, 6, 8, 12)
DDQ
DDQ
.
.
Unit
%/mV
%/°C
Unit
RZQ/12
RZQ/6
RZQ/6
RZQ/6
RZQ/6
RZQ/6
RZQ/6
Unit