W631GG6KB
Table 29 – Output Driver DC Electrical Characte ristics, assuming RZQ = 240 Ω ; entire
operating temperature range; after proper ZQ calibration
RON Nom
Resistor
V OUT
V OLDC = 0.2 × V DDQ
MIN.
0.6
NOM.
1.0
MAX.
1.1
UNIT
RZQ /7
NOTES
1, 2, 3
RON 34Pd
34 Ω
RON 34Pu
RON 40Pd
40 Ω
RON 40Pu
Mismatch between pull-up and pull-down,
MM PuPd
V OMDC = 0.5 × V DDQ
V OHDC = 0.8 × V DDQ
V OLDC = 0.2 × V DDQ
V OMDC = 0.5 × V DDQ
V OHDC = 0.8 × V DDQ
V OLDC = 0.2 × V DDQ
V OMDC = 0.5 × V DDQ
V OHDC = 0.8 × V DDQ
V OLDC = 0.2 × V DDQ
V OMDC = 0.5 × V DDQ
V OHDC = 0.8 × V DDQ
V OMDC = 0.5 × V DDQ
0.9
0.9
0.9
0.9
0.6
0.6
0.9
0.9
0.9
0.9
0.6
-10
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.1
1.4
1.4
1.1
1.1
1.1
1.1
1.4
1.4
1.1
1.1
+10
RZQ /7
RZQ /7
RZQ /7
RZQ /7
RZQ /7
RZQ /6
RZQ /6
RZQ /6
RZQ /6
RZQ /6
RZQ /6
%
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 4
Notes:
1. The tolerance limits are specified after calibration with stable voltage and temperature. For the behavior of the tolerance
limits if temperature or voltage changes after calibration, see following section on voltage and temperature sensitivity.
2. The tolerance limits are specified under the condition that V DDQ = V DD and that V SSQ = V SS .
3. Pull-down and pull-up output driver impedances are recommended to be calibrated at 0.5 × V DDQ . Other calibration
schemes may be used to achieve the linearity spec shown above, e.g. calibration at 0.2 × V DDQ and 0.8 × V DDQ .
4. Measurement definition for mismatch between pull-up and pull-down, MM PuPd :
Measure RON Pu and RON Pd , both at 0.5 * V DDQ :
MM PuPd =
RON Pu - RON Pd
RON Nom
x 100%
- 111 -
Publication Release Date: Dec. 09, 2013
Revision A05
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