MT90870AG Zarlink, MT90870AG Datasheet - Page 78

• Manufacturer Part Number: MT90870AG
• Description: Switch Fabric 12K x 12K/8K x 4K 1.8V/3.3V 272-Pin BGA Tray
• Manufacturer: Zarlink

Specifications of MT90870AG

• Package: 272BGA
• Number Of Ports: 32
• Fabric Size: 12K x 12K|8K x 4K
• Switch Core: Non-Blocking|Blocking
• Port Speed: 2.048|4.096|8.192|16.384 Mbps
• Operating Supply Voltage: 1.8|3.3 V

BSTo0 - 31
BSTo0 - 31
4.096 Mb/s
BSTo0 - 31
2.048 Mb/s
8.192 Mb/s
2.048 Mb/s
4.096 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
FP8i
C8i
Figure 22 - ST-BUS Backplane Data Timing Diagram (8 Mb/s, 4 Mb/s, 2 Mb/s)
Ch31
Ch127
Bit0
Bit1
1
Ch31
Bit0
Ch63
Bit0
Ch127
Ch63
Bit0
Bit0
0
Ch0
t
Bit7
BIDS4
t
BSOD8
t
7
BSOD4
t
BSOD2
Ch0
Bit7
t
t
BSIS8
t
BIDS8
t
BSIH8
Zarlink Semiconductor Inc.
Ch0
BIDS2
Bit7
Ch0
Bit6
6
MT90870
t
BSIS4
t
BSIH4
Bit7
Ch0
78
Bit5
Ch0
5
Bit7
Ch0
Ch0
Bit6
Ch0
Bit6
t
Ch0
BSIS2
Bit4
4
t
BSIH2
Bit3
Ch0
3
Ch0
Bit5
Bit5
Ch0
Ch0
Bit2
2
Ch0
Bit6
Bit1
Ch0
1
Ch0
Bit6
Data Sheet
Bit4
Ch0
Ch0
Bit4