eorex
AC Operating Test Conditions
Item
Output Reference Level
Output Load
Input Signal Level
Transition Time of Input Signals
Input Reference Level
EM484M1644VTC
(V
DD
=3.3V±0.3V, T
A
=0°C ~70°C/T
A
=-25°C ~ +85°C for extended grade)
Conditions
1.4V/1.4V
See diagram as below
2.4V/0.4V
2ns
1.4V
AC Operating Test Characteristics
(V
DD
=3.3V±0.3V, T
A
=0°C ~70°C/T
A
=-25°C ~ +85°C for extended grade)
Symbol
t
CK
t
AC
t
CH
t
CL
t
OH
t
HZ
t
LZ
t
IH
t
IS
t
T
Parameter
Clock Cycle Time
Access Time form CLK
(Note 5.1)
-6
CL=3
CL=2
CL=3
CL=2
2.5
2.5
2.5
3
6
Min.
6
10
5.4
6
2.5
2.5
2.5
3
Max.
Min.
7
10
-7
Max.
Units
ns
5.4
6
ns
ns
ns
ns
CLK High Level Width
CLK Low Level Width
Data-out Hold Time
(Note 5.1)
(Note 5.2)
(Note 5.2)
CL=3
CL=2
CL=3
Data-out High Impedance
(Note 5.3)
CL=2
Time
Data-out Low Impedance Time
(Note 5.1)
7
ns
ns
ns
ns
0
1
1.5
0.5
1
0
1
1.5
0.5
1
Input Hold Time
Input Setup Time
(Note 5.2)
(Note 5.2)
Transition time of CLK ,rise & fall
ns
* All voltages referenced to V
SS
.
Note 5.1:
If clock rising time is longer than 1ns, (t
T
/2-0.5)ns should be added to the parameter.
Dec. 2007
7/18
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