M391B5273CH0 SAMSUNG [Samsung semiconductor], M391B5273CH0 Datasheet - Page 20

• Manufacturer Part Number: M391B5273CH0
• Description: 240pin Unbuffered DIMM based on 2Gb C-die
• Manufacturer: SAMSUNG [Samsung semiconductor]

Unbuffered DIMM
13. AC & DC Output Measurement Levels
13.1 Single Ended AC and DC Output Levels
[ Table 8 ] Single Ended AC and DC output levels
NOTE : 1. The swing of +/-0.1 x V
13.2 Differential AC and DC Output Levels
[ Table 9 ] 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.
[ Table 10 ] Single ended Output slew rate definition
NOTE : Output slew rate is verified by design and characterization, and may not be subject to production test.
[ Table 11 ] Single ended output slew rate
Description : SR : Slew Rate
Q : Query Output (like in DQ, which stands for Data-in, Query-Output)
se : Single-ended Signals
For Ron = RZQ/7 setting
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
OM
OH
OL
OH
OL
V
V
Symbol
OHdiff
OLdiff
(DC)
(AC)
(DC)
(DC)
(AC)
load of 25Ω to V
load of 25Ω to V
(AC)
Parameter
(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
AC differential output high measurement level (for output SR)
AC differential output low measurement level (for output SR)
Description
TT
TT
=V
=V
DDQ
DDQ
DDQ
DDQ
/2.
/2 at each of the differential outputs.
is based on approximately 50% of the static single ended output high or low swing with a driver impedance of 40Ω and an effective test
is based on approximately 50% of the static single ended output high or low swing with a driver impedance of 40Ω and an effective test
Symbol
SRQse
Min
2.5
DDR3-800
delta
Figure 7. Single-ended output slew rate definition
TFdiff
datasheet
V
V
Max
OH
From
OL
5
(AC)
(AC)
Measured
Min
2.5
DDR3-1066
- 20 -
V
V
OH
OL
To
delta
(AC)
(AC)
Max
5
TRdiff
Min
2.5
V
DDR3-800/1066/1333/1600
V
V
DDR3-800/1066/1333/1600
OHdiff
TT
OLdiff
DDR3-1333
V
V
(AC)
(AC)
TT
TT
+0.2 x V
-0.2 x V
0.8 x V
0.5 x V
0.2 x V
+ 0.1 x V
- 0.1 x V
Max
5
DDQ
DDQ
DDQ
V
V
DDQ
DDQ
OH
OH
DDQ
DDQ
Defined by
Delta TRse
Delta TFse
(AC)-V
(AC)-V
Min
2.5
DDR3-1600
DDR3 SDRAM
OL
OL
(AC)
(AC)
OL
Max
Units
Units
5
(AC) and V
V
V
V
V
V
V
V
Rev. 1.21
Units
NOTE
NOTE
V/ns
OH
1
1
1
1
(AC)