NTC Proprietary
Level: Property
DDR3(L)-2Gb SDRAM
NT5CB(C)256M8JQ/NT5CB(C)128M16JR
Absolute Maximum Ratings
Absolute Maximum DC Ratings
Symbol
Parameter
Rating
Unit
V
Note
1,3
1,3
1
VDD
Voltage on VDD pin relative to Vss
Voltage on VDDQ pin relative to Vss
Voltage on any pin relative to Vss
Storage Temperature
-0.4 V ~ 1.80 V
-0.4 V ~ 1.80 V
-0.4 V ~ 1.80 V
-55 ~ 150
VDDQ
Vin, Vout
Tstg
V
V
1,2
C
Note:
1. Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.This is a stress
rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections
of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
2. Storage Temperature is the case surface temperature on the center/top side of the DRAM.
3. VDD and VDDQ must be within 300mV of each other at all times; and Vref must be not greater than 0.6VDDQ, when VDD and
VDDQ are less than 500Mv; Vref may be equal to or less than 300mV.
Refresh parameters by device density
Parameter
2Gb
Unit
Symbol
REF command to ACT or REF command time
tRFC
160
ns
Version 1.4
05/2019
83
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