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Hynix HMT351U7CFR8A-PBT0 Benutzerhandbuch

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Rev. 1.1 / Jul. 2013
16 
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
Notes:
1. For input only pins except RESET, Vref = VrefCA (DC).
2. Refer to "Overshoot and Undershoot Specifications" on page 29.
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     refer-
ence: 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 17), 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.
Single Ended AC and DC Input Levels for Command and Address
Symbol
Parameter
DDR3L-800/1066
DDR3L-1333/1600
Unit Notes
Min
Max
Min
Max
VIH.CA(DC90)
DC input logic high
Vref + 0.09
VDD
Vref + 0.09
VDD
V
1
VIL.CA(DC90)
DC input logic low
VSS
Vref - 0.09
VSS
Vref - 0.09
V
1
VIH.CA(AC160) AC input logic high
Vref + 0.160
Note2
Vref + 0.160
Note2
V
1,2,5
VIL.CA(AC160)
AC input logic low
Note2
Vref - 0.160
Note2
Vref - 0.160
V
1,2,5
VIH.CA(AC135) AC Input logic high
Vref + 0.135
Note2
Vref + 0.135
Note2
V
1,2,5
VIL.CA(AC135)
AC input logic low
Note2
Vref - 0.135
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
0.49 * VDD
0.51 * VDD
V
3,4