eorex
EM488M1644LBA
AC Operating Test Conditions
(VDD=1.8V ± 0.1V, TA=0°C ~70°C)
Item
Conditions
0.5*VDDQ
Output Reference Level
Output Load
See diagram as below
0.8*VDDQ /0.2*VDDQ
1ns
Input Signal Level
Transition Time of Input Signals
Input Reference Level
0.5*VDDQ
AC Operating Test Characteristics
(VDD=1.8V ± 0.1V, TA=0°C ~70°C)
-10
Symbol
Parameter
Units
ns
Min. Max.
CL=3
CL=2
CL=1
CL=3
9.5
15
30
7
tCK
Clock Cycle Time
tAC
Access Time form CLK
ns
CL=2
CL=1
8
20
tCH
tCL
tOH
CLK High Level Width
CLK Low Level Width
Data-out Hold Time
3
3
2
ns
ns
ns
Data-out High Impedance Time
tHZ
7
ns
(Note 5)
tLZ
tIH
tIS
Data-out Low Impedance Time
Input Hold Time
1
1.5
3
ns
ns
ns
Input Setup Time
* All voltages referenced to VSS.
Note 5: tHZ defines the time at which the output achieve the open circuit condition and is not referenced to
output voltage levels.
Jul. 2006
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