is43dr16320b3dbi Integrated Silicon Solution, Inc., is43dr16320b3dbi Datasheet - Page 16
is43dr16320b3dbi
Manufacturer Part Number
is43dr16320b3dbi
Description
512mb X8, X16 Ddr2 Sdram
Manufacturer
Integrated Silicon Solution, Inc.
Datasheet
1.IS43DR16320B3DBI.pdf
(27 pages)
IS43/46DR86400B, IS43/46DR16320B
2.
Differential Signal Level Waveform
Differential AC Output Parameters
Note: The typical value of VOX(AC) is expected to be about 0.5 x VDDQ of the transmitting device and VOX(AC) is expected to track variations in VDDQ. VOX(AC)
indicates the voltage at which differential output signals must cross.
Overshoot and Undershoot Specification
AC Overshoot and Undershoot Specification for Address and Control Pins
Note: Please refer to AC Overshoot and Undershoot Definition Diagram.
AC Overshoot and Undershoot Specification for Clock, Data, Strobe and Mask Pins
Note: Please refer to AC Overshoot and Undershoot Definition Diagram.
AC Overshoot and Undershoot Definition Diagram
Integrated Silicon Solution, Inc. – www.issi.com –
Rev. C, 8/17/2010
Maximum peak amplitude allowed for undershoot area
Maximum peak amplitude allowed for undershoot area
Maximum peak amplitude allowed for overshoot area
Maximum peak amplitude allowed for overshoot area
The typical value of VIX(AC) is expected to be about 0.5 x VDDQ of the transmitting device and VIX(AC) is expected to track variations in VDDQ. VIX(AC) indicates
the voltage at which differential input signals must cross.
VOX(AC)
Symbol
Maximum undershoot area below VSSQ*
Maximum overshoot area above VDDQ*
Maximum undershoot area below VSS*
Maximum overshoot area above VDD*
Volts
(V)
Parameter
Parameter
AC differential crosspoint voltage
V
V
DD
SS
/V
/V
V
V
SSQ
DDQ
CP
TR
Parameter
Maximum Amplitude
Maximum Amplitude
V
V
DDR2‐400
DDR2‐400
DDQ
SSQ
V
1.33
1.33
0.38
0.38
ID
0.9
0.9
0.9
0.9
0.5 x VDDQ‐0.125
Time (ns)
Min.
DDR2‐533
DDR2‐533
1.00
1.00
0.28
0.28
0.9
0.9
0.9
0.9
V
IX or
Undershoot Area
Crossing point
Overshoot Area
V
0.5 x VDDQ+0.125
OX
DDR2‐667
DDR2‐667
0.80
0.80
0.23
0.23
0.9
0.9
0.9
0.9
Max.
DDR2‐800
DDR2‐800
0.66
0.66
0.18
0.18
0.9
0.9
0.9
0.9
Units
V
Unit
V‐ns
V‐ns
Unit
V‐ns
V‐ns
16
V
V
V
V