MT8985AL Zarlink, MT8985AL Datasheet - Page 2

• Manufacturer Part Number: MT8985AL
• Description: Switch Fabric 256 x 256 16.384Mbps 5V 44-Pin MQFP Tray
• Manufacturer: Zarlink

Specifications of MT8985AL

• Package: 44MQFP
• Number Of Ports: 8
• Fabric Size: 256 x 256
• Switching Bandwidth: 16.384 Mbps
• Switch Core: Non-Blocking
• Port Speed: 2.048 Mbps
• Operating Supply Voltage: 5 V

Changes Summary
The following table captures the changes from the May 2005 issue.
7
Page
VDD
STi3
STi4
STi5
STi6
STi7
C4i
F0i
A0
A1
A2
18 19 20 21 22
Figure 3 - “Address Memory Map“
7
8
9
10
11
12
13
14
15
16
17
6 5 4 3 2
44 PIN PLCC
23
1
24 25 26 27 28
44 43 42 41 40
Item
29
39
38
37
36
35
34
33
32
31
30
STo3
STo4
STo5
STo6
STo7
VSS
D0
D1
D2
D3
D4
VDD
DTA
STi0
STi1
STi2
STi3
STi4
STi5
STi6
STi7
R/W
C4i
F0i
DS
Figure 2 - Pin Connections
A0
A1
A2
A3
A4
A5
Zarlink Semiconductor Inc.
40 PIN PLASTIC DIP
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
MT8985
2
•
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
corrected Address Memory Map
CSTo
ODE
STo0
STo1
STo2
STo3
STo4
STo5
STo6
STo7
VSS
D0
D1
D2
D3
D4
D5
D6
D7
CS
STi3
VDD
STi4
STi5
STi6
STi7
C4i
F0i
A0
A1
A2
1
2
3
4
5
6
7
8
9
10
11
44 PIN QFP
Change
23
33
32
31
30
29
28
27
26
25
24
Data Sheet
STo3
STo4
STo5
STo6
STo7
VSS
D0
D1
D2
D3
D4