MT8985 Mitel Networks Corporation, MT8985 Datasheet - Page 16

• Manufacturer Part Number: MT8985
• Description: Enhanced Digital Switch
• Manufacturer: Mitel Networks Corporation

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MT8985
AC Electrical Characteristics
† 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
2-60
Figure 15 - Serial Outputs and External Control
STo0
to
STo7
CSTo
STo0
to
STo7
1
2
3
4
C4i
O
U
T
P
U
T
S
2.0V
0.8V
2.4V
0.4V
2.4V
0.4V
2.4V
0.4V
STo0/7 Delay - Active to High Z
STo0/7 Delay - High Z to Active
Output Driver Enable Delay
CSTo Output Delay
Bit Cell Boundary
*
Characteristics
t
SAZ
†
- Serial Streams for ST-BUS and GCI Backplanes
t
SZA
(GCI)
(ST-BUS)
t
XCD
*
Sym
t
t
t
t
XCD
SAZ
SZA
OED
Min
0
L
, with timing corrected to cancel time taken to discharge C
ODE
STo0
to
STo7
Typ
‡
2.0V
0.8V
2.4V
0.4V
Figure 16 - Output Driver Enable
Max
100
100
65
60
t
*
OED
Units
ns
ns
ns
ns
R
C
R
C
L
L
L
L
=1 K *, C
=150 pF
=1 K *, C
=150 pF
Test Conditions
t
OED
L
L
=150 pF
=150 pF
L
.
*