m391b5273bh1 Samsung Semiconductor, Inc., m391b5273bh1 Datasheet - Page 18
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m391b5273bh1
Manufacturer Part Number
m391b5273bh1
Description
Ddr3 Sdram
Manufacturer
Samsung Semiconductor, Inc.
Datasheet
1.M391B5273BH1.pdf
(33 pages)
13.0 AC and DC Output Measurement Levels
13.1 Single Ended AC and DC Output Levels
Single Ended AC and DC output levels
Note : 1. The swing of +/-0.1 x V
13.2 Differential AC and DC Output Levels
Differential AC and DC output levels
Note : 1. The swing of +/-0.2xV
13.3 Single Ended Output Slew Rate
With the reference load for timing measurements, output slew rate for falling and rising edges is defined and measured between V
for single ended signals as shown in below.
Single Ended Output slew rate definition
Note : Output slew rate is verified by design and characterization, and may not be subject to production test.
Single Ended Output slew rate
Description : SR : Slew Rate
Q : Query Output (like in DQ, which stands for Data-in, Query-Output
se : Singe-ended Signals
For Ron = RZQ/7 setting
Unbuffered DIMM
Single ended output slew rate for rising edge
Single ended output slew rate for falling edge
Single ended output slew rate
V
V
V
V
V
Symbol
OH
OM
OL
OH
OL
V
V
Symbol
OHdiff
OLdiff
(DC)
(DC)
(AC)
(DC)
(AC)
and an effective test load of 25
and an effective test load of 25
(DC)
(AC)
Parameter
DC output high measurement level (for IV curve linearity)
DC output mid measurement level (for IV curve linearity)
DC output low measurement level (for IV curve linearity)
AC output high measurement level (for output SR)
AC output low measurement level (for output SR)
Parameter
Parameter
AC differential output high measurement level (for output SR)
AC differential output low measurement level (for output SR)
Description
DDQ
DDQ
is based on approximately 50% of the static singel ended output high or low swing with a driver impedance of 40
is based on approximately 50% of the static single ended output high or low swing with a driver impedance of 40
Ω
Ω
to V
to V
TT
TT
Figure 7. Single Ended Output Slew Rate definition
=V
=V
DDQ
DDQ
Symbol
SRQse
delta
/2.
/2 at each of the differential outputs.
TFse
V
V
From
OL
OH
18 of 33
(AC)
(AC)
Measured
Min
2.5
DDR3-1066
V
V
OH
OL
To
(AC)
(AC)
delta
Max
TRse
5
DDR3-1066/1333/1600
DDR3-1066/1333/1600
V
V
V
OH(AC)
TT
OL(AC)
V
V
TT
TT
+0.2 x V
-0.2 x V
0.8 x V
0.5 x V
0.2 x V
Min
+ 0.1 x V
2.5
- 0.1 x V
Rev. 1.0 December 2008
DDR3-1333
DDQ
DDQ
DDQ
DDQ
V
V
DDQ
OH
OH
DDQ
DDQ
Defined by
Delta TRse
Delta TFse
(AC)-V
(AC)-V
DDR3 SDRAM
Max
OL
OL
5
(AC)
(AC)
OL
Units
Units
(AC) and V
V
V
V
V
V
V
V
Units
V/ns
Notes
Notes
OH
1
1
1
1
(AC)
Ω
Ω