Datasheet

functiondiagram
DE
8
D
R
5
6
RE
ISODE
10
B
A
13
12
7
GALVANICISOLATION
OSC
1
2
D2
D1
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
RE
R
D
V
CC2
B
A
GND2
DE
DW PACKAGE
(TOP VIEW)
V
CC1
GND2
ISODE
D1
D2
GND1
GND2
GND2
functiondiagram
DE
6
D
5
R
3
4
RE
B
A
14
13
GALVANICISOLATION
OSC
1
2
D2
D1
12
11
Z
Y
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
R
RE
D
D1
V
CC2
Y
Z
GND2
DE
DW PACKAGE
(TOP VIEW)
V
CC1
GND1
GND2
D2
B
A
GND2
functiondiagram
DE
6
D
5
R
3
4
RE
B
A
14
13
GALVANICISOLATION
OSC
1
2
D2
D1
12
11
Z
Y
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
R
RE
D
D1
V
CC2
Y
Z
GND2
DE
DW PACKAGE
(TOP VIEW)
V
CC1
GND1
GND2
D2
B
A
GND2
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Figure 1. ISO1176T Device Pinout and Block Diagram
Figure 2. ISO35T Device Pinout and Block Diagram
Figure 3. ISO3086T Device Pinout and Block Diagram
1.1 PROFIBUS/RS-485
The TIA/EIA-485 (also known as RS-485) standard was created in response to a demand from the data
communications community for a general-purpose, high-speed balanced interface standard for multipoint
applications. The standard, Electrical Characteristics of Generators and Receivers for Use in Balanced
Digital Multipoint Systems, specifies differential signaling drivers and receivers for data interchange across
half-duplex or multipoint data bus structures. Although TIA/EIA-485 specifies requirements for drivers and
receivers operating at a signaling rate up to 10 Mbps, the standard also states that devices meeting the
electrical characteristics of the standard:
3
SLLU122A–April 2010–Revised July 2010 ISO1176T/35T/3086T Evaluation Module
Copyright © 2010, Texas Instruments Incorporated