ST1284 查看數據表（PDF） - STMicroelectronics
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ST1284 Datasheet PDF : 10 Pages
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Characteristics
ST1284
Figure 2.
Cell 1 for line termination, EMI
Figure 3.
filtering and ESD protection for the
data lines and strobe signals
Vcc
IEEE1284
Recommendation
Rp
Rs
Cell 2 for EMI filtering and ESD
protection of the control and status
signals
Vcc
IEEE1284
Recommendation
Rp
C
C
Gnd
There are 9 of these cells in the ST1284-xxA8
Figure 4. Functional diagram
Gnd
There are 8 of these cells in the ST1284-xxA8
17 Select in
1
16 Reset
15 Error
2
14 Autofeed
Vcc 20
1 Strobe
3
2 Bit 1
4
3 Bit 2
5
4 Bit 3
6
5 Bit 4
7
6 Bit 5
9
7 Bit 6
11
8 Bit 7
13
9 Bit 8
14
10 Acknowledge
8
11 Busy
12 Paper Out
10
13 Select paper
ST1284-xxA8
Vcc
Vcc
28
27
26
25
24
23
21
19
18
17
16
12
15
22
Gnd
1
14
25
13
4/10
Doc ID 6976 Rev 4
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