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HI-8422PQIF Datasheet(PDF) 2 Page - Holt Integrated Circuits

Part # HI-8422PQIF
Description  16-Channel Discrete-to-Digital Interface
Download  7 Pages
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Manufacturer  HOLTIC [Holt Integrated Circuits]
Direct Link  http://www.holtic.com
Logo HOLTIC - Holt Integrated Circuits

HI-8422PQIF Datasheet(HTML) 2 Page - Holt Integrated Circuits

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PIN DESCRIPTIONS
HI-8422
PIN
SYMBOL
FUNCTION
DESCRIPTION
1
28VIN3
Discrete Input
28 Volt / Open sensing input, channel 3
2
0VIN3
Open
3
28VIN4
4
0VIN4
5
28VIN5
6
0VIN5
7
28VIN6
Discrete
9
28VIN7
10
0VIN7
11
12
13
A0
Digital input
When A0 is high D1 - D8 outputs data from 28V comparators
When A0 is low D1 - D8 show results from 0V comparators
14
VDD
15
D8
16
D7
Discrete Input
/ Ground sensing input, channel 3
Discrete Input
28 Volt / Open sensing input, channel 4
Discrete Input
Open / Ground sensing input, channel 4
Discrete Input
28 Volt / Open sensing input, channel 5
Discrete Input
Open / Ground sensing input, channel 5
input
28 Volt / Open sensing input, channel 6
8
0VIN6
Discrete Input
Open / Ground sensing input, channel 6
Discrete Input
28 Volt / Open sensing input, channel 7
Discrete Input
Open / Ground sensing input, channel 7
Digital input
Output Enable. D1-D8 are high-impedance if
is high
Digital input
Chip Enable. D1-D8 are high-impedance if
is high
Power
Positive supply voltage 5.0 V
Tri-state output
Logic output, channel 8
Tri-state output
Logic output, channel 7
17
D6
Tri-state output
Logic output, channel 6
18
D5
Tri-state output
Logic output, channel 5
19
D4
Tri-state output
Logic output, channel 4
20
28VIN8
Discrete Input
28 Volt / Open sensing input, channel 8
21
0VIN8
Discrete Input
Open / Ground sensing input, channel 8
22
N/C
Not connected
23
D3
Tri-state output
Logic output, channel 3
24
N/C
Not connected
25
D2
Tri-state output
Logic output, channel 2
26
D1
Tri-state output
Logic output, channel 1
27
GND
Power
Ground
28
N/C
Not connected
29
28VIN1
Discrete Input
28 Volt / Open sensing input, channel 1
30
0VIN1
Discrete Input
Open / Ground sensing input, channel 1
31
28VIN2
Discrete Input
28 Volt / Open sensing input, channel 2
32
0VIN2
Discrete Input
Open / Ground sensing input, channel 2
OE
OE
CE
CE
HOLT INTEGRATED CIRCUITS
2


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