APCPCWM_4828539:WP_0000005WP_0000005
A
P
C
P
C
W
M
_4828539:
W
P
_0000005W
P
_000000
5
Rev. 1.2 / Jul. 2010
12
AC & DC Operating Conditions
Recommended DC Operating Conditions
Notes:
1. Under all conditions, VDDQ must be less than or equal to VDD.
2. VDDQ tracks with VDD. AC parameters are measured with VDD and VDDQ tied together.
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 25.
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.
Recommended DC Operating Conditions
Symbol
Parameter
Rating
Units Notes
Min.
Typ.
Max.
VDD
Supply Voltage
1.425
1.500
1.575
V
1,2
VDDQ
Supply Voltage for Output
1.425
1.500
1.575
V
1,2
Single Ended AC and DC Input Levels for Command and ADDress
Symbol
Parameter
DDR3-800/1066/1333
Unit
Notes
Min
Max
VIH.CA(DC100)
DC input logic high
Vref + 0.100
VDD
V
1
VIL.CA(DC100)
DC input logic low
VSS
Vref - 0.100
V
1
VIH.CA(AC175)
AC input logic high
Vref + 0.175
Note2
V
1, 2
VIL.CA(AC175)
AC input logic low
Note2
Vref - 0.175
V
1, 2
VIH.CA(AC150)
AC Input logic high
Vref + 0.150
Note2
V
1, 2
VIL.CA(AC150)
AC input logic low
Note2
Vref - 0.150
V
1, 2
V
RefCA(DC
)
Reference Voltage for ADD, CMD inputs
0.49 * VDD
0.51 * VDD
V
3, 4
B48614/178.104.2.80/2010-07-08 11:46