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參數(shù)資料
| 型號(hào)： | MT8985 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Enhanced Digital Switch(加強(qiáng)型數(shù)字開(kāi)關(guān)) |
| 中文描述： | 增強(qiáng)型數(shù)字交換機(jī)（加強(qiáng)型數(shù)字開(kāi)關(guān)） |
| 文件頁(yè)數(shù)： | 2/24頁(yè) |
| 文件大?。?/td> | 147K |
| 代理商： | MT8985 |
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MT8985
2-46
Figure 2 - Pin Connections
Pin Description
Pin #
Name
Description
40
DIP
44
PLCC
44
QFP
1
2
40
DTA
Data Acknowledgement
(Open Drain Output). This active low output indicates that
a data bus transfer is complete. A pull-up resistor is required at this output.
ST-BUS Input 0 to 7 (Inputs).
Serial data input streams. These streams have 32
channels at data rates of 2.048 Mbit/s.
2-9
3-5
7-11
41-43
1-5
STi0-
STi7
10
12
6
V
DD
+5 Volt Power Supply rail.
11
13
7
F0i
Frame Pulse (Input):
This input accepts and automatically identifies frame
synchronization signals formatted according to different backplane specifications
such as ST-BUS and GCI.
12
14
8
C4i
A0-A5
Address 0 to 5 (Inputs).
These lines provide the address to MT8985 internal
registers.
DS
Data Strobe (Input).
This is the input for the active high data strobe on the
microprocessor interface. This input operates with CS to enable the internal read and
write generation.
Clock (Input).
4.096 MHz serial clock for shifting data in and out of the data streams.
13-18 15-17
19-21
22
9-11
13-15
16
19
20
23
17
R/W
Read/Write (Input).
This input controls the direction of the data bus lines (D0-D7)
during a microprocessor access.
DTA
STi0
STi1
STi2
STi3
STi4
STi5
STi6
STi7
VDD
F0i
C4i
A0
A1
A2
A3
A4
A5
DS
R/W
CSTo
ODE
STo0
STo1
STo2
STo3
STo4
STo5
STo6
STo7
VSS
D0
D1
D2
D3
D4
D5
D6
D7
CS
1
6 5 4 3 2
7
8
9
10
11
12
13
14
15
16
17
444342 4140
39
38
37
36
35
34
33
32
31
30
29
23
1819 20 2122
2425 26 2728
STi3
STi4
STi5
STi6
STi7
VDD
F0i
C4i
A0
A1
A2
STo3
STo4
STo5
STo6
STo7
VSS
D0
D1
D2
D3
D4
N
S
D
O
S
N
S
S
C
S
S
N
A
D
C
D
N
A
A
R
D
40 PIN PLASTIC DIP
44 PIN PLCC
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
D
3
4
1
2
3
4
5
6
7
8
9
10
11
4
4
4
4
3
3
3
3
3
33
32
31
30
29
28
27
26
25
24
23
1
1
1
1
1
1
1
1
2
2
2
44 PIN QFP
STi3
STi4
STi5
STi6
STi7
VDD
F0i
C4i
A0
A1
A2
N
A
D
C
D
N
A
A
R
D
D
STo3
STo4
STo5
STo6
STo7
VSS
D0
D1
D2
D3
D4
N
S
D
O
S
N
S
S
C
S
S
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8985AE | 制造商:MITEL 功能描述: |
| MT8985AE1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 40PDIP - Rail/Tube 制造商:Microsemi Corporation 功能描述:PB FREE ENHANCED DIGITAL SWITCH 制造商:Zarlink Semiconductor Inc 功能描述:PB FREE ENHANCED DIGITAL SWITCH 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 40PDIP - Rail/Tube 制造商:Microsemi 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 40PDIP |
| MT8985AL | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44MQFP - Trays 制造商:Zarlink Semiconductor Inc 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44MQFP - Trays |
| MT8985AL1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 5V 44MQFP - Trays |
| MT8985AP | 制造商:Microsemi Corporation 功能描述: 制造商:Mitel Networks Corporation 功能描述: 制造商:MITEL 功能描述: |
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