MT90870AG Zarlink, MT90870AG Datasheet - Page 83
MT90870AG
Manufacturer Part Number
MT90870AG
Description
Switch Fabric 12K x 12K/8K x 4K 1.8V/3.3V 272-Pin BGA Tray
Manufacturer
Zarlink
Datasheet
1.MT90870AG.pdf
(86 pages)
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
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MT90870AG2
Manufacturer:
ZARLINK
Quantity:
41
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Backplane and Local Output High-Impedance Timing
Note 1:
High Impedance is measured by pulling to the appropriate rail with R
Non-Multiplexed Microprocessor Port Timing
1
2
1
2
3
4
5
STo delay - Active to High-Z
Output Driver Enable (ODE)
Delay to Active Data
Output Driver Enable (ODE)
Delay to High-Impedance
CS setup from DS falling
R/W setup from DS falling
Address setup from DS falling
CS hold after DS rising
R/W hold after DS rising
Characteristic
Characteristics
- High-Z to Active
ODE
Figure 28 - Serial Output and External Control
STo
CLK
STo
STo
Figure 29 - Output Driver Enable (ODE)
Sym.
t
t
ODE
t
t
ODZ
DZ
ZD
Hi-Z
Valid Data
Zarlink Semiconductor Inc.
tODE
Min.
Sym.
t
t
t
t
t
RWS
RWH
HiZ
CSS
ADS
CSH
Valid Data
MT90870
tDZ
tZD
83
Typ.
tODZ
L
Min.
=1k//1k potential divider, with timing corrected for C
0
8
8
0
8
Valid Data
HiZ
Max.
Hi-Z
15
14
VTT
4
4
Typ.
0
VTT
Units
VTT
ns
ns
ns
ns
VTT
VTT
Max.
R
R
R
L
L
L
=1K, C
=1K, C
=1K, C
Units
Test Conditions
ns
ns
ns
ns
ns
L
L
L
=50pF, See Note 1
=50pF, See Note 1
=50pF, See Note 1
Test Conditions
Data Sheet
L
.
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