h5tq4g43mmr Hynix Semiconductor, h5tq4g43mmr Datasheet - Page 20

• Manufacturer Part Number: h5tq4g43mmr
• Description: 4gb Ddr3 Sdram Ddp
• Manufacturer: Hynix Semiconductor

Rev. 0.1 /Aug 2008
6. AC and DC Output Measurement Levels
6.1 Single Ended AC and DC Output Levels
Table shows the output levels used for measurements of single ended signals.
6.1.1 Differential AC and DC Output Levels
Below table shows the output levels used for measurements of differential signals.
6.2 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 VOL(AC) and VOH(AC) for single ended signals as shown in Table and Figure.
Note:
Output slew rate is verified by design and characterization, and may not be subject to production test.
1. The swing of ± 0.1 x VDDQ is based on approximately 50% of the static single ended output high or low swing with
1. The swing of ± 0.2 x VDDQ is based on approximately 50% of the static differential output high or low swing with
Single ended output slew rate for rising edge
Single ended output slew rate for falling edge
VOHdiff (AC) AC differential output high measurement level (for output SR)
VOM(DC)
VOH(DC)
VOLdiff (AC)
VOL(DC)
VOH(AC)
VOL(AC)
Symbol
a driver impedance of 40Ω and an effective test load of 25Ω to VTT = VDDQ / 2.
a driver impedance of 40Ω and an effective test load of 25Ω to VTT = VDDQ/2 at each of the differential outputs.
Symbol
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)
AC differential output low measurement level (for output SR)
Description
Parameter
Parameter
VOH(AC)
VOL(AC)
From
Measured
VOH(AC)
VOL(AC)
To
VTT + 0.1 x VDDQ
VTT - 0.1 x VDDQ
DDR3-1066,
0.8 x VDDQ
0.5 x VDDQ
0.2 x VDDQ
DDR3-1066,
+ 0.2 x VDDQ
- 0.2 x VDDQ
1333
1333
H5TQ4G43MMR-xxC
H5TQ4G83MMR-xxC
VOH(AC)-VOL(AC)
VOH(AC)-VOL(AC)
Defined by
DeltaTRse
DeltaTFse
Unit
Unit Notes
V
V
V
V
V
V
V
Notes
20
1
1
1
1