MT9076
Preliminary Information
AC Electrical Characteristics - ST-BUS Timing (E1 or T1 mode)
Characteristic
Sym
Min
Typ
Max Units
Test Conditions
1
2
3
4
5
6
7
8
C4b Clock Width High or Low
C4b Clock Width High or Low
Frame Pulse Hold
t4W
tFPS
tFPH
tFPS
tFPL
tSIS
80
25
10
10
10
10
10
75
122
150
35
ns 2.048 Mb/s mode
30.5
ns 8.192 Mb/s mode
ns
Frame Pulse Setup
Frame Pulse Low
ns 2.048 Mb/s mode
ns
Serial Input Setup
ns
Serial Input Hold
tSIH
ns
Serial Output Delay
tSOD
ns 150pF
ST-BUS
Bit Cells
Channel 31
Bit 0
Channel 0
Bit 7
Channel 0
Bit 6
Channel 0
Bit 5
F0b
C4b
Figure 25 - ST-BUS Functional Timing Diagram - 2.048 Mb/s Mode
ST-BUS
Bit Cells
Channel 127
Bit 0
Channel 0
Bit 7
Channel 0
Bit 6
Channel 0
Bit 5
F0b
C4b
Figure 26 - ST-BUS Functional Timing Diagram - 8.192 Mb/s Mode
144
MITEL [ MITEL NETWORKS CORPORATION ]
