HMT451V7MFR8C Datasheet, PDF (24/67 Pages) Hynix Semiconductor – DDR3 SDRAM VLP Registered DIMM Based on 4Gb M-die

AC & DC Input Measurement Levels
AC and DC Logic Input Levels for Single-Ended Signals
AC and DC Input Levels for Single-Ended Command and Address Signals
Single Ended AC and DC Input Levels for Command and ADDress
Symbol
Parameter
DDR3-800/1066/1333/1600
Min
Max
Unit Notes
VIH.CA(DC100)
VIL.CA(DC100)
VIH.CA(AC175)
VIL.CA(AC175)
VIH.CA(AC150)
VIL.CA(AC150)
VIH.CA(AC135)
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
Vref + 0.100
VSS
Vref + 0.175
Note2
Vref + 0.150
Note2
-
VDD
Vref - 0.100
Note2
Vref - 0.175
Note2
Vref - 0.150
-
V
1, 5
V
1, 6
V 1, 2, 7
V 1, 2, 8
V 1, 2, 7
V 1, 2, 8
V 1, 2, 7
VIL.CA(AC135)
VIH.CA(AC125)
VIL.CA(AC125)
V_RefCA(DC)
AC input logic low
AC Input logic high
AC input logic low
Reference Voltage for
ADD, CMD inputs
-
-
-
0.49 * VDD
-
-
-
0.51 * VDD
V 1, 2, 8
V 1, 2, 7
V 1, 2, 8
V
3, 4
Notes:
1. For input only pins except RESET, Vref = VrefCA (DC).
2. Refer to "Overshoot and Undershoot Specifications" on page 37.
3. The ac peak noise on V_Ref may not allow V_Ref to deviate from V_RefCA(DC) by more than +/-1% VDD (for
reference: approx. +/- 15 mV).
4. For reference: approx. VDD/2 +/- 15 mV.
5. VIH(dc) is used as a simplified symbol for VIH.CA(DC100)
6. VIL(dc) is used as a simplified symbol for VIL.CA(DC100)
7. VIH(ac) is used as simplified symbol for VIH.CA(AC175), VIH.CA(AC150), VIH.CA(AC135), and
VIH.CA(AC125); VIH.CA(AC175) value is used when Vref + 0.175V is referenced, VIH.CA(AC150) value is
used when Vref + 0.150V is referenced, VIH.CA(AC135) value is used when Vref + 0.135V is referenced,
and VIH.CA(AC125) value is used when Vref + 0.125V is referenced.
8. VIL(ac) is used as simplified symbol for VIL.CA(AC175), VIL.CA(AC150), VIL.CA(AC135), and
VIL.CA(AC125); VIL.CA(AC175) value is used when Vref - 0.175V is referenced, VIL.CA(AC150) value is
used when Vref - 0.150V is referenced, VIL.CA(AC135) value is used when Vref - 0.135V is referenced, and
VIL.CA(AC125) value is used when Vref - 0.125V is referenced.
Rev. 1.0 / Aug. 2012
24