MT90870AG Zarlink, MT90870AG Datasheet - Page 79

• 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

16.384 Mb/s
32.768 Mb/s
16.384 Mb/s
32.768 Mb/s
BSTo0 - 15
BSTo0 - 31
BSTi0 - 31
* CK_int is the internal clock signal of 131.072 MHz
BSTi0 - 15
CK_int *
FP8i
C8i
Ch 255
Figure 23 - ST-BUS Backplane Data Timing Diagram (32 Mb/s, 16 Mb/s)
Bit1
Ch511
Bit2
2
Ch511
Bit1
1
Bit0
Ch255
Ch 255
Ch511
Bit0
Bit0
0
Zarlink Semiconductor Inc.
Ch0
t
Bit7
MT90870
BIDS16
t
BSOD32
t
7
BSOD16
79
Ch0
Bit7
t
t
BSIS32
t
BIDS32
BSIH32
Ch0
Bit7
Ch0
Bit6
6
t
BSIS16
t
BSIH16
Ch0
Bit5
5
Ch0
Bit6
Ch0
Bit6
Bit4
Ch0
4
Bit3
Ch0
3
Ch0
Bit5
Ch0
Bit5
Bit2
Ch0
Data Sheet
2