EDJ1108BABG, EDJ1116BABG
Output Driver DC Electrical Characteristics
(RZQ = 240Ω, entire operating temperature range; after proper ZQ calibration)
RONnom Resistor
VOUT
min.
nom.
max.
Unit
Notes
VOL (DC) = 0.2 × VDDQ
VOM (DC) = 0.5 × VDDQ
VOH (DC) = 0.8 × VDDQ
VOL (DC) = 0.2 × VDDQ
VOM (DC) = 0.5 × VDDQ
VOH (DC) = 0.8 × VDDQ
VOL (DC) = 0.2 × VDDQ
VOM (DC) = 0.5 × VDDQ
VOH (DC) = 0.8 × VDDQ
VOL (DC) = 0.2 × VDDQ
VOM (DC) = 0.5 × VDDQ
VOH (DC) = 0.8 × VDDQ
0.6
0.9
0.9
0.9
0.9
0.6
0.6
0.9
0.9
0.9
0.9
0.6
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.1
1.1
1.4
1.4
1.1
1.1
1.1
1.1
1.4
1.4
1.1
1.1
40Ω
RON40Pd
RON40Pu
RON34Pd
RON34Pu
RZQ/6 1, 2, 3
RZQ/6 1, 2, 3
RZQ/7 1, 2, 3
RZQ/7 1, 2, 3
34Ω
Mismatch between pull-up and pull down, MMPuPd
VOM (DC) = 0.5 × VDDQ
−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:
RONPu -RONPd
MMPuPd =
× 100
RONnom
Output Driver Temperature and Voltage Sensitivity
If temperature and/or voltage change after calibration, the tolerance limits widen according to the table Output Driver
Sensitivity Definition and Output Driver Voltage and Temperature Sensitivity.
∆T = T − T (@calibration); ∆V= VDDQ − VDDQ (@calibration); VDD = VDDQ
Note: dRONdT and dRONdV are not subject to production test but are verified by design and characterization.
[Output Driver Sensitivity Definition]
min
max
unit
RONPu@VOH (DC) 0.6 − dRONdTH × |∆T| − dRONdVH × |∆V|
1.1 + dRONdTH × |∆T| + dRONdVH × |∆V|
1.1 + dRONdTM × |∆T| + dRONdVM × |∆V|
1.1 + dRONdTL × |∆T| + dRONdVL × |∆V|
RZQ/7
RZQ/7
RZQ/7
RON@ VOM (DC)
RONPd@VOL (DC)
0.9 − dRONdTM × |∆T| − dRONdVM × |∆V|
0.6 − dRONdTL × |∆T| − dRONdVL × |∆V|
[Output Driver Voltage and Temperature Sensitivity]
min.
0
max.
Unit
dRONdTM
dRONdVM
dRONdTL
dRONdVL
dRONdTH
dRONdVH
1.5
%/°C
%/mV
%/°C
%/mV
%/°C
%/mV
0
0.15
1.5
0
0
TBD
1.5
0
0
TBD
Data Sheet E1248E40 (Ver. 4.0)
25
ELPIDA [ ELPIDA MEMORY ]
