MH8980D 데이터 시트보기 (PDF) - Mitel Networks
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MH8980D Datasheet PDF : 15 Pages
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MT8980D
STi3
7
STi4
8
STi5
9
STi6
10
STi7
11
VDD
12
F0i
13
C4i
14
A0
15
A1
16
A2
17
39 STo3
38 STo4
37 STo5
36 STo6
35 STo7
34 VSS
33 D0
32 D1
31 D2
30 D3
29 D4
STi3
1
STi4
2
STi5
3
STi6
4
STi7
5
VDD
6
F0i
7
C4i
8
A0
9
A1
10
A2
11
33 STo3
32 STo4
31 STo5
30 STo6
29 STo7
28 VSS
27 D0
26 D1
25 D2
24 D3
23 D4
44 PIN PLCC
DTA 1
STi0 2
STi1 3
STi2 4
STi3 5
STi4 6
STi5 7
STi6 8
STi7 9
VDD 10
F0i 11
C4i 12
A0 13
A1 14
A2 15
A3 16
A4 17
A5 18
DS 19
R/W 20
40 CSTo
39 ODE
38 STo0
37 STo1
36 STo2
35 STo3
34 STo4
33 STo5
32 STo6
31 STo7
30 VSS
29 D0
28 D1
27 D2
26 D3
25 D4
24 D5
23 D6
22 D7
21 CS
40 PIN CERDIP/PLASTIC DIP
44 PIN QFP
Pin Description
Figure 2 - Pin Connections
Pin #
Name
40 44 44
DIP PLCC QFP
Description
1 2 40 DTA Data Acknowledgement (Open Drain Output). This is the data acknowledgement
on the microprocessor interface. This pin is pulled low to signal that the chip has
processed the data. A 909 Ω, 1/4W, resistor is recommended to be used as a pullup.
2-4 3-5 41- STi0- ST-BUS Input 0 to 2 (Inputs). These are the inputs for the 2048 kbit/s ST-BUS input
43 STi2 streams.
5-9 7-11 1-5 STi3- ST-BUS Input 3 to 7 (Inputs). These are the inputs for the 2048 kbit/s ST-BUS input
STi7 streams.
10 12 6 VDD Power Input. Positive Supply.
11 13 7
F0i Framing 0-Type (Input). This is the input for the frame synchronization pulse
for the 2048 kbit/s ST-BUS streams. A low on this input causes the internal counter
to reset on the next negative transition of C4i.
2-4
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