HMT425S6MFR6A Datasheet, PDF (15/53 Pages) Hynix Semiconductor – DDR3L SDRAM Unbuffered SODIMMs 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
DDR3L-800/1066/1333/1600
Unit Notes
Min
Max
VIH.CA(DC90)
DC input logic high
Vref + 0.09
VDD
V
1
VIL.CA(DC90)
DC input logic low
VSS
Vref - 0.09
V
1
VIH.CA(AC160)
VIL.CA(AC160)
AC input logic high
AC input logic low
Vref + 0.160
Note2
V
1,2,5
Note2
Vref - 0.160
V
1,2,5
VIH.CA(AC135)
AC Input logic high
Vref + 0.135
Note2
V
1,2,5
VIL.CA(AC135)
AC input logic low
Note2
Vref - 0.135
V
1,2,5
VIH.CA(AC125)
AC Input logic high
-
-
V
1,2,5
VIL.CA(AC125)
AC input logic low
-
-
V
1,2,5
V_RefCA(DC)
Reference Voltage for ADD, CMD inputs 0.49 * VDD 0.51 * VDD
V
3, 4
Notes:
1. For input only pins except RESET, Vref = VrefCA (DC).
2. Refer to "Overshoot and Undershoot Specifications" on page 28.
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. +/- 13.5 mV).
4. For reference: approx. VDD/2 +/- 13.5 mV
5. These levels apply for 1.35 volt (see table above) operation only. If the device is operated at 1.5V (table
"Single Ended AC and DC Input Levels for DQ and DM" on page 32), the respective levels in JESD79-3
(VIH/L.CA(DC100), VIH/L.CA(AC175), VIH/L.CA(AC150), VIH/L.CA(AC135), VIH/L.CA(AC125) etc.) apply.
The 1.5V levels (VIH/L.CA(DC100), VIH/L.CA(AC175), VIH/L.CA(AC150), VIH/L.CA(AC135), VIH/
L.CA(AC125) etc.) do not apply when the device is operated in the 1.35 voltage range.
Rev. 1.0 / Jul. 2012
15