NTC Proprietary
Level: Property
DDR3(L)-2Gb SDRAM
NT5CB(C)256M8JQ/NT5CB(C)128M16JR
DDR3L AC and DC Logic Input Levels for Command and Address
DDR3L
Symbol
Parameter
1600
1866
Unit Notes
Min
Max
Min
Max
VIH.CA(DC90)
VIL.CA(DC90)
VIH.CA(AC160)
VIL.CA(AC160)
VIH.CA(AC135)
VIL.CA(AC135)
VIH.CA(AC125)
VIL.CA(AC125)
DC input logic high
DC input logic low
AC input logic high
AC input logic low
AC input logic high
AC input logic low
AC input logic high
AC input logic low
Vref + 0.09
VDD
Vref + 0.09
VSS
VDD
V
V
V
V
V
V
V
V
1
VSS
Vref + 0.16
Note 2
Vref + 0.135
Note 2
-
Vref - 0.09
Note 2
Vref - 0.16
Note 2
Vref - 0.135
-
Vref - 0.09
-
1
-
1,2
1,2
1,2
1,2
1,2
1,2
-
-
Vref + 0.135
Note 2
Vref + 0.125
Note 2
Note 2
Vref - 0.135
Note 2
Vref - 0.125
-
-
Reference Voltage for
ADD, CMD inputs
VRefCA(DC)
0.49 * VDD
0.51 * VDD
0.49 * VDD
0.51 * VDD
V
3,4
NOTE 1 For input only pins except REET. Vref = VrefCA(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
87
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