IS43DR16320B-25DBL

Manufacturer Part NumberIS43DR16320B-25DBL
ManufacturerISSI, Integrated Silicon Solution Inc
IS43DR16320B-25DBL datasheet
 

Specifications of IS43DR16320B-25DBL

Lead Free Status / Rohs StatusCompliant  
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IS43/46DR86400B, IS43/46DR16320B
ODT DC Electrical Characteristics
Parameter/Condition
Rtt effective impedance value for EMRS(A6=0, A2=1); 75 ohm
Rtt effective impedance value for EMRS(A6=1, A2=0); 150 ohm
Rtt effective impedance value for EMRS(A6=A2=1); 50 ohm
Deviation of VM with respect to VDDQ/2
Note:
1.
Measurement Definition for Rtt(eff):
Apply VIH(AC) and VIL(AC) to test pin seperately, then measure current I(VIH(AC)) and I(VIL(AC)) respectively
2.
Measurement Defintion for VM:
Measure voltage (VM) at test pin (midpoint) with no load:
ODT AC Electrical Characteristics and Operating Conditions
Symbol
Parameter/Condition
tAOND
ODT turn-on delay
tAON
ODT turn-on
tAONPD
ODT turn-on (Power-Down Mode)
tAOFD
ODT turn-off delay
tAOF
ODT turn-off
tAOFPD
ODT turn-off (Power-Down Mode)
tANPD
ODT to Power-Down Mode Entry L:atency
tAXPD
ODT Power Down Exit Latency
Notes:
1.
ODT turn on time min is when the de vice leaves high impedance and ODT resistance begins to turn on. ODT turn on time max is when the ODT resistance is fully
on. Both are measured from t AOND.
2.
ODT turn off time min is when the device starts to turn-off ODT resistance. ODT turn off time max is when the bus is in high impedance. Both are measured from
tAOFD.
3.
For Standard Active Power-Down (with MR S A12 = “0”), the non power -down timings (tAOND, tAON, tAOFD and tAOF) apply.
4.
tANPD an d tAXPD define the timing limit when either Power Down Mode Timings (tAONPD, tAOFPD) or Non-Power Down Mode timings ( tAOND, tAOFD) have
to be applied
Integrated Silicon Solution, Inc. – www.issi.com –
Rev. E, 01/17/2011
Symbol
Min.
60
Rtt1(eff)
120
Rtt2(eff)
Rtt3(eff)
40
deltaVM
VIH
(
AC
)
VIL
(
AC
)
Rtt
(
eff
)
=
( I
VIH
(
AC
))
( I
VIL
(
AC
))
2
x
VM
VM
=
1
x
100
%
VDDQ
Min.
2
tAC(Min)
tAC(Min)+2 ns
2tCK+tAC(Max)+1ns
2.5
tAC(Min)
tAC(Max)+0.6ns
tAC(Min)+2ns
2.5tCK+tAC+1ns
3
8
Units
Notes
Nom.
Max.
75
90
ohms
150
180
ohms
50
60
ohms
-6
+6
%
Max.
Units
Notes
2
tCK
tAC(Max)+1ns
ns
ns
2.5
tCK
ns
ns
tCK
tCK
1
1
1
2
1
3
2
3
4
4
19