NTC Proprietary
Level: Property
DDR3(L)-2Gb SDRAM
NT5CB(C)256M8JQ/NT5CB(C)128M16JR
Reference Load for AC Timing and Output Slew Rate
The following figure represents the effective reference load of 25 ohms used in defining the relevant AC timing parameters
of the device as well as output slew rate measurements.
It is not intended as a precise representation of any particular system environment or a depiction of the actual load presented
by a production tester. System designers should use IBIS or other simulation tools to correlate the timing reference load to
a system environment. Manufacturers correlate to their production test conditions, generally one or more coaxial
transmission lines terminated at the tester electronics.
VDDQ
25 Ohm
DUT
CK ,
Vtt = VDDQ/2
DQ
DQS
Timing Reference Points
Version 1.4
05/2019
103
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