MT90870AG Zarlink, MT90870AG Datasheet - Page 82

• 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

LSTo0 - 15
2.048 Mb/s
16.384 Mb/s
4.096 Mb/s
LSTo0 - 15
4.096 Mb/s
16.384 Mb/s
8.192 Mb/s
* CK_int is the internal clock signal of 131.072 MHz
8.192 Mb/s
LSTi0 - 15
LSTo0 - 15
2.048 Mb/s
LSTo0 - 15
LSTi0 - 15
LSTi0 - 15
* CK_int is the internal clock signal of 131.072MHz
LSTi0 - 15
CK_int *
CK_int *
FP8i
C8i
C8i
FP8i
Ch31
Ch127
Bit0
Bit1
Ch 255
Figure 27 - ST-BUS Local Data Timing Diagram (8 Mb/s, 4 Mb/s, 2 Mb/s)
Bit1
1
Bit0
Ch31
Ch63
Bit0
Ch63
Bit0
Ch127
Bit0
Figure 26 - ST-BUS Local Timing Diagram (16 Mb/s)
0
Ch255
Bit0
tLFBOS
Ch0
Bit7
tLSOD8
tLIDS4
Ch 255
tLSOD4
Bit0
7
tLSOD2
Ch0
Bit7
tLSIS8
tLIDS8
tLSIH8
Zarlink Semiconductor Inc.
Ch0
Bit7
tLIDS2
Bit6
Ch0
t
6
LFBOS
MT90870
t
LIDS16
t
tLSIS4
LSOD16
tLSIH4
Bit7
Ch0
82
Ch0
Bit7
Ch0
Bit5
Ch 0
Bit7
5
Ch0
Bit7
Bit6
Ch0
t
LSIS16
Bit6
Ch0
tLSIS2
t
Ch0
LSIH16
Bit4
4
tLSIH2
Bit6
Ch0
Ch0
Bit3
Bit6
Ch 0
3
Bit5
Ch0
Ch0
Bit5
Ch0
Bit2
2
Ch0
Bit6
Ch0
Bit5
Ch0
Bit1
Ch 0
Bit5
1
Data Sheet
Ch0
Bit6
Ch0
Bit4
Ch0
Bit4