MT89L86
Advance Information
†
AC Electrical Characteristics - Serial Streams for ST-BUS and GCI Backplanes (2.048 Mb/s)
‡
Characteristics
Sym
tSAZ
Min
Typ
Max
Units
Test Conditions
O
U
T
P
U
T
1
2
3
4
STo0/9 Delay - Active to High Z
STo0/9 Delay - High Z to Active
Output Driver Enable Delay
CSTo Output Delay
55
55
50
55
ns
ns
ns
ns
R =1 KΩ*, C =150 pF
L
L
tSZA
C =150 pF
L
tOED
tXCD
R =1 KΩ*, C =150 pF
L L
C =150 pF
L
S
† 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
(GCI)
VHM
VLM
CLK
VHM
VLM
ODE
(ST-BUS)
STo0
to
STo9
VHM
VLM
*
VHM
VLM
STo0
to
STo9
*
*
t
SAZ
t
t
OED
OED
VHM
VLM
STo0
to
STo9
*
t
SZA
Figure 18 - Output Driver Enable
VHM
VLM
CSTo
t
XCD
Figure 17 - Serial Outputs and External Control
.
AC Electrical Characteristics - Serial Streams at 4.096 and 8.192 Mb/s
(refer to Figures 19-24)
Characteristics
Clock Period
Sym
Min
Typ
Max
Units
Test Conditions
1
2
3
4
5
tCK
4.096Mb/s
8.192Mb/s
190
110
244
122
300
150
ns
ns
Clock Pulse High
Clock Pulse Low
Frame Sync Setup
Frame Sync Hold
tCH
tCL
tFS
tFH
4.096Mb/s
8.192Mb/s
85
50
122
60
150
70
ns
ns
4.096Mb/s
8.192Mb/s
85
50
122
60
150
70
ns
ns
4.096Mb/s
8.192Mb/s
10
10
190
90
ns
ns
4.096Mb/s
8.192Mb/s
20
20
190
90
ns
ns
26
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