MT90869AG Zarlink, MT90869AG Datasheet - Page 75

• Manufacturer Part Number: MT90869AG
• Description: Switch Fabric 16K x 16K/8K x 8K 1.8V/3.3V 272-Pin BGA Tray
• Manufacturer: Zarlink

Specifications of MT90869AG

• Package: 272BGA
• Number Of Ports: 64
• Fabric Size: 16K x 16K|8K x 8K
• Switch Core: Non-Blocking|Blocking
• Port Speed: 8.192|4.096|2.048 Mbps
• Operating Supply Voltage: 1.8|3.3 V

Backplane Data Timing
BSTo0 - 31
BSTo0 - 31
4.096 Mb/s
BSTo0 - 31
2.048 Mb/s
1
2
3
4
8.192 Mb/s
4.096 Mb/s
2.048 Mb/s
8.192 Mb/s
BSTi0 - 31
BSTi0 - 31
BSTi0 - 31
CK_int *
* CK_int is the internal clock signal of 131.072 MHz
Backplane Input data sampling point
Backplane Serial Input Set-up Time
Backplane Serial Input Hold Time
Backplane Serial Output Delay
FP8i
C8i
Figure 22 - ST-BUS Backplane Data Timing Diagram (8 Mb/s, 4 Mb/s, 2 Mb/s)
Ch31
Ch127
Bit0
Bit1
Characteristic
1
Ch31
Bit0
Ch63
Bit0
Ch127
Bit0
Ch63
Bit0
0
Ch0
Bit7
t
t
BSOD8
BIDS4
t
7
BSOD4
t
BSOD2
Ch0
Bit7
t
t
BSIS8
BIDS8
t
BSIH8
t
BIDS2
Ch0
Bit7
Ch0
Zarlink Semiconductor Inc.
Bit6
6
t
MT90869
BSIS4
t
BSIH4
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Ch0
BIDS32
BIDS16
BIDS8
BIDS4
BIDS2
BSIS32
BSIS16
BSIS8
BSIS4
BSIS2
BSIH32
BSIH16
BSIH8
BSIH4
BSIH2
BSOD32
BSOD16
BSOD8
BSOD4
BSOD2
Bit7
Ch0
Bit5
75
Sym.
5
Ch0
Bit7
Ch0
Bit6
Ch0
Bit6
t
BSIS2
Bit4
Ch0
4
t
Min.
BSIH2
178
361
2.1
2.1
2.1
2.1
2.1
18
41
87
3
3
3
3
3
0
0
0
0
0
Bit3
Ch0
3
Typ.
183
366
23
46
92
Bit5
Ch0
Bit5
Ch0
Bit2
Ch0
Max.
10.5
10.5
10.5
10.5
10.5
188
371
2
28
51
97
Bit6
Ch0
Ch0
Bit1
Units
ns
ns
ns
ns
1
Ch0
Bit6
Ch0
Bit4
Ch0
Bit4
Data Sheet
With zero
offset.
C
L
Notes
=50pF