MT8980D
AC Electrical Characteristics
†
- Serial Streams (Figures 11, 14, 15 and 16)
Characteristics
1
2
3
4
5
6
7
8
9
I
N
O
U
T
P
U
T
S
STo0/7 Delay - Active to High Z
STo0/7 Delay - High Z to Active
STo0/7 Delay - Active to Active
STo0/7 Hold Time
Output Driver Enable Delay
External Control Hold Time
External Control Delay
Serial Input Setup Time
Serial Input Hold Time
Sym
t
SAZ
t
SZA
t
SAA
t
SOH
t
OED
t
XCH
t
XCD
t
SIS
t
SIH
90
0
Min
20
25
30
25
Typ
‡
50
60
65
45
45
50
75
-40
110
-20
125
Max
80
125
125
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Conditions
R
L
=1 KΩ*, C
L
=150 pF
C
L
=150 pF
C
L
=150 pF
C
L
=150 pF
R
L
=1 KΩ*, C
L
=150 pF
C
L
=150 pF
C
L
=150 pF
† 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
L
, with timing corrected to cancel time taken to discharge C
L
.
Bit Cell Boundary
2.0V
2.0V
C4i
0.8V
t
SOH
STo0
2.4V
to
STo7
0.4V
t
SAZ
STo0
2.4V
to
STo7
0.4V
ODE
0.8V
*
STo0
2.4V
to
STo7
0.4V
*
t
OED
t
OED
*
*
t
SZA
t
SOH
Figure 15 - Output Driver Enable
Bit Cell Boundaries
2.0V
C4i
0.8V
t
SIH
STo0
2.4V
to
STo7
0.4V
t
SAA
t
XCH
2.4V
CSTo
0.4V
STi0
2.0V
to
STi7
0.8V
t
SIS
t
XCD
Figure 14 - Serial Outputs and External Control
2-14
Figure 16 - Serial Inputs
MITEL [ MITEL NETWORKS CORPORATION ]
