NTC Proprietary
Level: Property
DDR3(L)-2Gb SDRAM
NT5CB(C)256M8JQ/NT5CB(C)128M16JR
DDR3L AC and DC Logic Input Levels for DQ and DM
DDR3L
Symbol
Parameter
1600
1866
Unit Notes
Min
Max
Min
Max
VIH.DQ(DC90) DC input logic high
VIL.DQ(DC90) DC input logic low
VIH.DQ(AC160) AC input logic high
VIL.DQ(AC160) AC input logic low
VIH.DQ(AC135) AC input logic high
VIL.DQ(AC135) AC input logic low
VIH.DQ(AC130) AC input logic high
VIL.DQ(AC130) AC input logic low
Vref + 0.09
VDD
Vref + 0.09
VDD
V
V
V
V
V
V
V
V
1
VSS
Vref - 0.09
VSS
-
Vref - 0.09
-
1
-
-
1,2
1,2
1,2
1,2
1,2
1,2
-
-
-
-
Vref + 0.135
Note 2
Vref + 0.135
Note 2
Vref + 0.13
Note 2
Note 2
Vref - 0.135
Note 2
Vref - 0.13
Note 2
Vref - 0.135
-
-
-
-
Reference Voltage
VRefDQ(DC)
0.49 * VDD
0.51 * VDD
0.49 * VDD
0.51 * VDD
V
3,4
for DQ, DM inputs
NOTE 1 For input only pins except REET. Vref = VrefDQ(DC).
NOTE 2 See “Overshoot and Undershoot Specifications”.
NOTE 3 The AC peak noise on VRef may not allow VRef to deviate from VRefDQ(DC) by more than +/-1% VDD (for reference: approx. +/- 13.5
mV).
NOTE 4 For reference: approx. VDD/2 +/- 13.5 mV.
Version 1.4
05/2019
89
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