W631GG6KB-15 Datasheet, PDF (110/158 Pages) Winbond – Double Data Rate architecture: two data transfers per clock cycle

W631GG6KB
Table 29 – Output Driver DC Electrical Characteristics, assuming RZQ = 240 Ω ; entire
operating temperature range; after proper ZQ calibration
RONNom
34 Ω
Resistor
RON34Pd
RON34Pu
40 Ω
RON40Pd
RON40Pu
Mismatch between pull-up and pull-down,
MMPuPd
VOUT
VOLDC = 0.2 × VDDQ
VOMDC = 0.5 × VDDQ
VOHDC = 0.8 × VDDQ
VOLDC = 0.2 × VDDQ
VOMDC = 0.5 × VDDQ
VOHDC = 0.8 × VDDQ
VOLDC = 0.2 × VDDQ
VOMDC = 0.5 × VDDQ
VOHDC = 0.8 × VDDQ
VOLDC = 0.2 × VDDQ
VOMDC = 0.5 × VDDQ
VOHDC = 0.8 × VDDQ
VOMDC = 0.5 × VDDQ
MIN.
0.6
0.9
0.9
0.9
0.9
0.6
0.6
0.9
0.9
0.9
0.9
0.6
NOM.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
MAX.
1.1
1.1
1.4
1.4
1.1
1.1
1.1
1.1
1.4
1.4
1.1
1.1
UNIT
RZQ/7
RZQ/7
RZQ/7
RZQ/7
RZQ/7
RZQ/7
RZQ/6
RZQ/6
RZQ/6
RZQ/6
RZQ/6
RZQ/6
NOTES
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, 3
-10
+10
%
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 VDDQ = VDD and that VSSQ = VSS.
3. Pull-down and pull-up output driver impedances are recommended to be calibrated at 0.5 × VDDQ. Other calibration
schemes may be used to achieve the linearity spec shown above, e.g. calibration at 0.2 × VDDQ and 0.8 × VDDQ.
4. Measurement definition for mismatch between pull-up and pull-down, MMPuPd:
Measure RONPu and RONPd, both at 0.5 * VDDQ:
MM_PuPd =
RON_Pu - RON_{Pd x 100%}
RON _{No m}
- 110 -
Publication Release Date: Feb. 27, 2013
Revision A04