1Gb : x4, x8, x16 DDR3 SDRAM
Ou t p u t Drive r Im p e d a n ce
Ta b le 37:
34Ω Drive r IOH/IOL Ch a ra ct e rist ics: VDD = VDDQ = 1.5V
MR1[5,1]
RON
Re sist o r
VOUT
Ma x
No m
Min
Un it s
0, 1
34.3Ω
RON
34PD
IOL @ 0.2 × VDDQ
IOL @ 0.5 × VDDQ
IOL @ 0.8 × VDDQ
IOH @ 0.2 × VDDQ
IOH @ 0.5 × VDDQ
IOH @ 0.8 × VDDQ
14.7
24.6
39.3
39.3
24.6
14.7
8.8
21.9
35.0
35.0
21.9
8.8
7.9
19.7
24.8
24.8
19.7
7.9
mA
mA
mA
mA
mA
mA
RON
34PU
Ta b le 38:
34Ω Drive r IOH/IOL Ch a ra ct e rist ics: VDD = VDDQ = 1.575V
MR1[5,1]
RON
Re sist o r
VOUT
Ma x
No m
Min
Un it s
0, 1
34.3Ω
RON
34PD
IOL @ 0.2 × VDDQ
IOL @ 0.5 × VDDQ
IOL @ 0.8 × VDDQ
IOH @ 0.2 × VDDQ
IOH @ 0.5 × VDDQ
IOH @ 0.8 × VDDQ
15.5
25.8
41.2
41.2
25.8
15.5
9.2
23
8.3
20.7
26
mA
mA
mA
mA
mA
mA
36.8
36.8
23
RON
34PU
26
20.7
8.3
9.2
Ta b le 39:
34Ω Drive r IOH/IOL Ch a ra ct e rist ics: VDD = VDDQ = 1.425V
MR1[5,1]
RON
Re sist o r
VOUT
Ma x
No m
Min
Un it s
0, 1
34.3Ω
RON
34PD
IOL @ 0.2 × VDDQ
IOL @ 0.5 × VDDQ
IOL @ 0.8 × VDDQ
IOH @ 0.2 × VDDQ
IOH @ 0.5 × VDDQ
IOH @ 0.8 × VDDQ
14.0
23.3
37.3
37.3
23.3
14.0
8.3
20.8
33.3
33.3
20.8
8.3
7.5
18.7
23.5
23.5
18.7
7.5
mA
mA
mA
mA
mA
mA
RON
34PU
34Ω Drive r Ou t p u t Se n sit ivit y
If either the temperature or the voltage changes after ZQ calibration, the tolerance limits
listed in Table 35 on page 55 can be expected to widen according to Table 40 and
Table 41 on page 57.
Ta b le 40:
34Ω Ou t p u t Drive r Se n sit ivit y De fin it io n
Sym b o l Min
0.9 - dRONdTH × |ΔT| - dRONdVH × |ΔV|
Ma x
Un it s
RON @ 0.8 × VDDQ
RON @ 0.5 × VDDQ
RON @ 0.2 × VDDQ
1.1 + dRONdTH × |ΔT| + dRONdVH × |ΔV|
1.1 + dRONdTM × |ΔT| + dRONdVM × |ΔV|
1.1 + dRONdTL × |ΔT| + dRONdVL × |ΔV|
RZQ/ 7
RZQ/7
RZQ/ 7
0.9 - dRONdTM × |ΔT| - dRONdVM × |ΔV|
0.9 - dRONdTL × |ΔT| - dRONdVL × |ΔV|
Notes: 1. ΔT = T - T(@ calibration), ΔV = VDDQ - VDDQ(@ calibration), and VDD = VDDQ.
PDF: 09005aef826aa906/Source: 09005aef82a357c3
1Gb_DDR3_3.fm - Rev. D 8/1/08 EN
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2006 Micron Technology, Inc. All rights reserved.
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