eorex
AC Operating Test Conditions
(V
DD
, V
DDQ
=3.3V±0.3V, V
SS
=0V)
Item
Output Reference Level
Output Load
Input Signal Level
Transition Time of Input Signals
Input Reference Level
EM488M1644VTF
Conditions
1.4V/1.4V
See diagram as below
2.4V/0.4V
1ns
1.4V
AC Operating Test Characteristics
(V
DD
, V
DDQ
=3.3V±0.3V, V
SS
=0V)
Symbol
t
CK
t
AC
t
CH
t
CL
t
CKH
t
CKS
t
OH
t
HZ
t
LZ
t
IH
t
IS
T
DS
t
DH
Parameter
Clock Cycle Time
Access Time form CLK
CLK High Level Width
CLK Low Level Width
Clock Input Hold Time
Clock Input Setup Time
Data-out Hold Time
Data-out High Impedance Time
(Note
Data-out Low Impedance Time
Input Hold Time
Input Setup Time
Data-in Setup Time
Data-in Hold Time
CL=3
CL=2
CL=3
CL=2
-6
Min.
6
7.5
-
-
2.5
2.5
1
1.5
2.5
3
1
1
1.5
1.5
1
Max.
-
-
5.4
5.4
-
-
-
-
-
6
-
-
-
-
-
Min.
7
10
-
-
2.5
2.5
1
1.5
2.5
3
1
1
1.5
1.5
1
-7
Max.
-
-
5.4
6
-
-
-
-
-
7
-
-
-
-
-
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5)
* All voltages referenced to V
SS
.
Note 5:
t
HZ
defines the time at which the output achieve the open circuit condition and is not
referenced to output voltage levels.
Jan. 2011
7/18
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