eorex
Preliminary
EM488M1644LBB
AC Operating Test Conditions
(VDD=3.3V±0.3V, TA=0°C ~70°C)
Item
Conditions
0.5*VDDQ / 0.5* VDDQ
See diagram as below
0.9*VDDQ / /0.2V
1ns
Output Reference Level
Output Load
Input Signal Level
Transition Time of Input Signals
Input Reference Level
VDDQ/2
AC Operating Test Characteristics
(VDD=3.3V±0.3V, TA=0°C ~70°C, -25°C ~ +85°C)
-7.5
Symbol
tCK
Parameter
Clock Cycle Time
Units
ns
Min.
7.5
10
Max.
CL=3
CL=2
CL=3
CL=2
6
8
tAC
Access Time form CLK
ns
tCH
tCL
CLK High Level Width
CLK Low Level Width
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
6
8
Data-out High Impedance
Time (Note 5)
tLZ
tIH
tIS
Data-out Low Impedance Time
Input Hold Time
1
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.
May. 2007
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EOREX [ EOREX CORPORATION ]
