MT9079
AC Electrical Characteristics - ST-BUS Timing
Characteristic
Sym
Min
Typ
Max Units
Conditions/Notes
1
2
3
4
5
6
7
C2i Clock Width High or Low
C4i Clock Width High or Low
Frame Pulse Setup
Frame Pulse Low
t2W
t4W
200
85
10
20
20
30
258
159
ns
ns
ns
ns
ns
ns
ns
C2i clock period = 458 ns
C4i clock period = 244 ns
tFPS
tFPL
tSIS
tSIH
tSOD
Serial Input Setup
Serial Input Hold
Serial Output Delay
75
150pF
ST-BUS Bit
Stream
Channel 31, Bit 0
Channel 0, Bit 7
Channel 0, Bit 6
tFPL
F0i
C2i
VTT
t2W
t2W
tFPS
VTT
t4W
t4W
C4i
VTT
tSIH
All Input
Streams
VTT
tSIS
tSOD
All Output
Streams
VTT,VCT
Figure 22 - ST-BUS Timing Diagram
AC Electrical Characteristics - Multiframe Timing
Characteristic
Sym
Min
Typ
Max Units
Conditions/Notes
1
2
3
4
Receive Multiframe Output Delay
Transmit Multiframe Setup
Transmit Multiframe Hold
Multiframe to C2 Setup
tMOD
tMS
75
ns
ns
ns
ns
150pF
5
tMH
50
*
* 256 C2 periods -100nsec
tMH2
100
4-285
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