MT90870AG Zarlink, MT90870AG Datasheet - Page 81

• 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

Local Clock Data Timing
16.384 Mb/s
32.768 Mb/s
16.384 Mb/s
32.768 Mb/s
1
2
3
4
5
BSTo0 - 15
BSTo0 - 31
BSTi0 - 31
* CK_int is the internal clock signal of 131.072 MHz
BSTi0 - 15
CK_int *
Local Frame Boundary Offset
Input data sampling point
Local Serial Input Set-up Time
Local Serial Input Hold Time
Local Serial Output Delay
FP8i
C8i
Ch255
Figure 25 - GCI BUS Backplane Data Timing Diagram (32 Mb/s, 16 Mb/s)
Characteristic
Bit6
Ch 511
Bit5
5
Ch 511
Bit6
6
Bit7
Ch255
Ch255
Ch 511
Bit7
Bit7
7
Zarlink Semiconductor Inc.
t
t
t
t
t
t
t
t
t
LSOD16
Ch0
t
t
t
t
t
t
t
t
t
Bit0
BIDS16
LFBOS
LIDS16
LSIS16
LSIH16
LSOD8
LSOD4
LSOD2
Sym.
LIDS8
LIDS4
LIDS2
LSIS8
LSIS4
LSIS2
LSIH8
LSIH4
LSIH2
t
MT90870
BSOD32
t
9
BSOD16
Ch0
Bit0
t
81
t
BSIS32
t
BIDS32
BSIH32
Bit0
Ch0
Ch0
Bit1
Min.
1
178
361
2.1
2.1
2.1
2.1
41
87
3
3
3
3
t
BSIS16
t
BSIH16
Ch0
Bit2
Typ.
183
366
46
92
2
Ch0
Bit1
Bit1
Ch0
Max.
10.5
10.5
10.5
10.5
188
371
7.5
51
97
Ch0
Bit3
3
Units
Ch0
Bit4
ns
ns
ns
ns
ns
4
Ch0
Bit2
Ch0
Bit2
Bit5
Ch0
Data Sheet
C
With zero
5
Notes
offset.
L
=50pF