Advance Information
AC Electrical Characteristics
†
- Serial Streams (Figures 11, 12 and 13)
Characteristics
1
2
3
4
5
6
7
O
U
T
P
U
T
S
I
N
STo0/7 Delay - Active to High Z
STo0/7 Delay - High Z to Active
STo0/7 Delay - Active to Active
Output Driver Enable Delay
External Control Delay
Serial Input Setup Time
Serial Input Hold Time
Sym
t
SAZ
t
SZA
t
SAA
t
OED
t
XCD
t
SIS
t
SIH
20
20
Min
5
5
5
Typ
‡
Max
55
55
55
50
55
Units
ns
ns
ns
ns
ns
ns
ns
MT89L80
Test Conditions
R
L
=1 KΩ*, C
L
=150 pF
C
L
=150 pF
C
L
=150 pF
R
L
=1 KΩ*, 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
V
HM
C4i
V
LM
ODE
V
HM
V
LM
STo0
to
V
STo7
LM
V
HM
*
t
SAZ
STo0
V
HM
to
STo7
V
LM
*
t
OED
t
OED
*
STo0
V
HM
to
STo7
V
LM
*
t
SZA
Figure 12 - Output Driver Enable
Bit Cell Boundaries
STo0
to
V
STo7
LM
V
HM
V
HM
C4i
t
SAA
t
SIH
V
HM
CSTo
V
LM
t
XCD
STi0
V
HM
to
STi7
V
LM
t
SIS
V
LM
Figure 11 - Serial Outputs and External Control
Figure 13 - Serial Inputs
2-13
MITEL [ MITEL NETWORKS CORPORATION ]
