1Gb DDR3L – AS4C128M8D3L
Table 13. Single-Ended AC and DC Input Levels for Command and Address
-12
Symbol
Parameter
Unit Note
Min.
VREF + 0.09
VSS
Max.
VDD
VIH.CA(DC90)
VIL.CA(DC90)
VIH.CA(AC160)
VIL.CA(AC160)
VIH.CA(AC135)
VIL.CA(AC135)
VRefCA(DC)
DC input logic high
V
V
V
V
V
V
V
1,5
1,6
DC input logic low
VREF-0.09
-
AC input logic high
VREF + 0.16
-
1,2,7
1,2,8
1,2,7
1,2,8
3,4
AC input logic low
VREF – 0.16
-
AC input logic high
VREF + 0.135
-
AC input logic low
VREF – 0.135
0.51 x VDD
Reference Voltage for ADD, CMD inputs
0.49 x VDD
NOTE 1: For input only pins except RESET#. 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 VRefCA(DC) by more than +/-1% VDD.
NOTE 4: For reference: approx. VDD/2 +/- 13.5 mV.
NOTE 5: VIH(dc) is used as a simplified symbol for VIH.CA(DC90)
NOTE 6: VIL(dc) is used as a simplified symbol for VIL.CA(DC90)
NOTE 7: VIH(ac) is used as a simplified symbol for VIH.CA(AC160), VIH.CA(AC135) and VIH.CA(AC160) value is used
when Vref + 0.16V is referenced, VIH.CA(AC135) value is used when Vref + 0.135V is referenced.
NOTE 8: VIL(ac) is used as a simplified symbol for VIL.CA(AC160), VIL.CA(AC135) and VIL.CA(AC160) value is used
when Vref - 0.16V is referenced, VIL.CA(AC135) value is used when Vref - 0.135V is referenced.
Table 14. Single-Ended AC and DC Input Levels for DQ and DM
-12
Symbol
Parameter
Unit Note
Min.
VREF + 0.09
VSS
Max.
VDD
VIH.DQ(DC90)
VIL.DQ(DC90)
VIH.DQ(AC135)
VIL.DQ(AC135)
VRefDQ(DC)
DC input logic high
V
V
V
V
V
1,5
1,6
DC input logic low
VREF – 0.09
-
AC input logic high
VREF + 0.135
-
1,2,7
1,2,8
3,4
AC input logic low
VREF – 0.135
0.51 x VDD
Reference Voltage for DQ, DM inputs
0.49 x VDD
NOTE 1: 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.
NOTE 4: For reference: approx. VDD/2 +/- 13.5 mV.
NOTE 5: VIH(dc) is used as a simplified symbol for VIH.DQ(DC90)
NOTE 6: VIL(dc) is used as a simplified symbol for VIL.DQ(DC90)
NOTE 7: VIH(ac) is used as a simplified symbol for VIH.DQ(AC135) and VIH.DQ(AC135) value is used when Vref + 0.135V
is referenced.
NOTE 8: VIL(ac) is used as a simplified symbol for VIL.DQ(AC135) and VIL.DQ(AC135) value is used when Vref - 0.135V
is referenced.
Confidential
22
Rev. 2.0
Aug. /2014
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
