NTC Proprietary
Level: Property
DDR3(L)-2Gb SDRAM
NT5CB(C)256M8JQ/NT5CB(C)128M16JR
ODT Temperature and Voltage sensitivity
If temperature and/or voltage after calibration, the tolerance limits widen according to the following table.
Delta T = T - T(@calibration); Delta V = VDDQ - VDDQ(@calibration); VDD = VDDQ
ODT Sensitivity Definition
Min.
Max.
Unit
0.9 – dRTTdT * l△Tl – dRTTdV * l△Vl
1.6 + dRTTdT * l△Tl + dRTTdV * l△Vl
RZQ/2,4,6,8,12
RTT
ODT Voltage and Temperature Sensitivity
Min.
Max.
1.5
Unit
dRTTdT
dRTTdV
0
0
%/C
%/mV
0.15
Note: These parameters may not be subject to production test. They are verified .
Test Load for ODT Timings
Different than for timing measurements, the reference load for ODT timings is defined in the following figure.
VDDQ
RTT=
25 Ohm
DUT
CK ,
Vtt =
VSSQ
DQ , DM
DQS ,
TDQS , T
Timing Reference Points
VSSQ
ODT Timing Reference Load
Version 1.4
05/2019
114
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