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ISO1I811T
Pin Configuration and Functionality
GND
SEL
n.c.
Rosc
VCC
/ERR
GND
D0
D1
D2
D3
1
2
3
4
5
6
7
8
9
10
11
48
47
46
45
44
43
42
41
40
39
38
GNDBB
I7H
I7L
I6H
I6L
GNDBB
I5H
I5L
I4H
I4L
n.c.
GND
SEL
n.c.
Rosc
VCC
/ERR
GND
SDI
GND
GND
GND
1
2
3
4
5
6
7
8
9
10
11
48
47
46
45
44
43
42
41
40
39
38
GNDBB
I 7H
I7L
I 6H
I6L
GNDBB
I 5H
I5L
I 4H
I4L
n.c.
D4
D5
D6
D7
/CS
/RD
GND
DS0
DS1
GND
n.c.
n.c.
GND
12
13
14
15
16
17
18
19
20
21
22
23
24
Pinout for parallel
Interface
37
36
35
34
33
32
31
30
29
28
27
26
25
GNDBB
TS
I3H
I3L
I2H
I2L
GNDBB
I1H
I1L
I0H
I0L
VBB
GNDBB
GND
SCLK
GND
SDO
/CS
n.c.
GND
DS0
DS1
GND
n.c.
n.c.
GND
12
13
14
15
16
17
18
19
20
21
22
23
24
Pinout for serial
Interface
37
36
35
34
33
32
31
30
29
28
27
26
25
GNDBB
TS
I 3H
I3L
I 2H
I2L
GNDBB
I 1H
I1L
I 0H
I0L
VBB
GNDBB
n.c. = Not Connected
Figure 1
1.2
TSSOP-48 Pinout for Parallel and Serial Interface
Pin Functionality
The meaning and the functions of the IC pins are described below.
1.2.1
Pins of Sensor Interface
VBB (Positive supply 9.6-35V sensor supply)
VBB supplies the sensor input stage.
GNDBB (Ground for VBB domain)
This pin acts as the ground reference for the sensor input stage, that is supplied by VBB.
I0H... I7H (Input channel 0 ... 7)
Sensor inputs with current sink characteristic according IEC61131-2 Type 1/2/3 which has been selected by pin TS
I0L... I7L (LED output channel 0 ... 7)
This pin provides the output signal to switch on the LED if the input voltage and current has been detected as
“High” according the selected type.
TS (Type Select)
By connecting a resistor between TS and GNDBB the sensor type (Type 1/2/3) can be selected (refer to Table 9
for corresponding resistor value). This pin is for static configuration (pin-strapping). The voltage level at pin TS is
not allowed to be changed during operation.
Data Sheet
8
Revision 2.0, 2012-06-14
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