MT8981D ISO-CMOS
AC Electrical Characteristics† - Serial Streams (Figures 11, 14, 15 and 16)
‡
Characteristics
Sym
Min
Typ
Max Units
Test Conditions
1
2
3
4
5
6
7
8
9
STo0/3 Delay - Active to High Z
STo0/3 Delay - High Z to Active
STo0/3 Delay - Active to Active
STo0/3 Hold Time
tSAZ
tSZA
tSAA
tSOH
tOED
tXCH
tXCD
tSIS
20
25
30
25
50
60
65
45
45
50
75
-40
80
ns
ns
ns
ns
ns
ns
ns
ns
ns
RL=1 KΩ*, CL=150 pF
CL=150 pF
125
125
O
U
T
P
U
T
CL=150 pF
CL=150 pF
Output Driver Enable Delay
External Control Hold Time
External Control Delay
125
RL=1 KΩ*, CL=150 pF
CL=150 pF
S
0
110
-20
CL=150 pF
Serial Input Setup Time
I
N
Serial Input Hold Time
tSIH
90
† Timing is over recommended temperature & power supply voltages
‡ Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
* High Impedance is measured by pulling to the appropriate rail with R , with timing corrected to cancel time taken to discharge C .
L
L
Bit Cell Boundary
2.0V
0.8V
ODE
2.0V
0.8V
C4i
t
SOH
2.4V
0.4V
STo0
to
STo3
2.4V
0.4V
STo0
to
STo3
*
*
*
t
t
OED
OED
t
SAZ
STo0 2.4V
Figure 15 - Output Driver Enable
to
*
STo3
0.4V
t
SZA
t
SOH
Bit Cell Boundaries
STo0
to
STo3
2.4V
0.4V
2.0V
C4i
0.8V
t
SAA
t
SIH
STi0 2.0V
to
STi3
0.8V
t
SIS
Figure 16 - Serial Inputs
Figure 14 - Serial Outputs and External Control
2-28
MITEL [ MITEL NETWORKS CORPORATION ]
