eorex
EM488M1644VTA
AC Operating Test Conditions
(VDD=3.3V±0.3V, TA=0°C ~70°C)
Item
Conditions
1.4V/1.4V
Output Reference Level
Output Load
See diagram as below
2.4V/0.4V
Input Signal Level
Transition Time of Input Signals
Input Reference Level
2ns
1.4V
AC Operating Test Characteristics
(VDD=3.3V±0.3V, TA=0°C ~70°C)
-6
-7
-7.5
Symbol
tCK
Parameter
Clock Cycle Time
Units
ns
Min. Max. Min. Max. Min. Max.
CL=3
CL=2
CL=3
CL=2
6
7
7.5
10
10
10
5.5
6
6
6
6
6
tAC
Access Time form CLK
ns
tCH
tCL
CLK High Level Width
CLK Low Level Width
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
ns
ns
CL=3
CL=2
CL=3
CL=2
tOH
tHZ
Data-out Hold Time
ns
ns
5
6
6
6
6
6
Data-out High Impedance
Time (Note 5)
tLZ
tIH
tIS
Data-out Low Impedance Time
Input Hold Time
0
1
2
0
1
2
0
1
2
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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