MT90710
Preliminary Information
DOUT32K
RxDATA
TxDATA
MODE0
MODE1
MODE2
FBWE
FBOE
RLED
STo1
STo4
STo3
STo2
STo0
VDD
52
50
48
46
44
42
40
38
36
VDD
POR
FBDATA7
C4b
FBDATA6
FBDATA5
DIN8K0
FBDATA4
DIN32K
VDD
VSS
FBDATA3
STi0
FBDATA2
DIN8K1
FBDATA1
LLED
FBDATA0
RESET
IC
VDD
54
56
58
60
62
64
66
68
70
72
34
VDD
VSS
VSS
F0b
NC
IC
32
30
28
26
24
NC
VSS
NC
E20i
STi7
STi6B
STi6A
STi5
STi4
STi3
VDD
VSS
STi2
STi1
C40i
NC
NC
NC
C4REFo
C4o
VSS
84 PIN PLCC
22
20
18
16
14
76
78
80
82
84
74
STo6B
STo6A
VSS
VSS
VDD
10
12
4
6
2
8
FBADDR0
FBADDR1
FBADDR2
FBADDR3
FBADDR4
FBADDR5
FBADDR6
FBADDR7
DOUT8K0
DOUT8K1
C20o
STo7
Figure 2 - Pin Connections
Pin Description
Pin #
1
2
3
Name
V
SS
V
DD
STo7
Description
Power Supply Ground.
Nominally 0 volts.
Positive Power Supply.
Nominally 5 volts.
Serial, 32 Channel, 2.048 Mb/s Link 7 (Output Type 3).
Only channels 9 - 31 are
available for user data transfer (1.474 Mb/s). Channels 0 - 8 (0.576 Mb/s) are reserved
for access to fiber overhead information. Output is active only when the receiver
detects the synchronization pattern on RxDATA input stream; output is high impedance
during loss of synchronization.
Asynchronous 8 kHz Signal 0 (Output Type 3).
Sourced from the far-end DIN8K0
input.
Asynchronous 8 kHz Signal 1 (Output Type 3).
Sourced from the far-end DIN8K1
input.
20.48 MHz Clock (Output Type 3).
Derived from transmit PLL 40.96 MHz clock divided
by 2 (see pin 18). Made available for system use.
No Internal Connection.
Frame Buffer RAM Address Bit 7 (Output Type 2).
Serial, 32 Channel, 2.048 Mb/s Link 6A (Output Type 3).
Output is active only when
the receiver detects the synchronization pattern on RxDATA input stream; output is high
impedance during loss of synchronization.
4
5
6
7
8
9
DOUT8K0
DOUT8K1
C20o
NC
FBADDR7
STo6A
5-4
STo5
VDD
NC
NC
MITEL [ MITEL NETWORKS CORPORATION ]
