hi-8423ptt Holt Integrated Circuits, Inc., hi-8423ptt Datasheet - Page 2

• Manufacturer Part Number: hi-8423ptt
• Description: 6-channel / 8-channel Discrete-to-digital Interface Sensing Open / Ground Signals
• Manufacturer: Holt Integrated Circuits, Inc.

PIN DESCRIPTIONS
(HI-8420) (HI-8423)
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
-
-
-
-
PIN
10
12
13
14
15
16
17
18
19
20
11
1
2
3
4
5
6
7
8
9
SYMBOL
OUT8
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
GND
V
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
OE
CE
DD
Tri-state output
Tri-state output
Tri-state output
Tri-state output
Tri-state output
Tri-state output
Tri-state output
Tri-state output
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
Discrete Input
FUNCTION
Digital
Digital input
HOLT INTEGRATED CIRCUITS
Power
Power
input
HI-8420, HI-8423
Open / Ground sensing input, channel 1
Open / Ground sensing input, channel 2
Open / Ground sensing input, channel 3
Open / Ground sensing input, channel 4
Open / Ground sensing input, channel 5
Open / Ground sensing input, channel 6
Open / Ground sensing input channel 7
Output Enable. OUT1-OUT8 are high-impedance if
Chip Enable. OUT1-OUT8 are high-impedance if
Positive supply voltage 5.0 V
Logic output, channel 8
Logic output, channel 7
Logic output, channel 6
Logic output, channel 5
Logic output, channel 4
Open / Ground sensing input, channel 8
Logic output, channel 3
Logic output, channel 2
Logic output, channel 1
Ground
2
DESCRIPTION
CE
OE
is high
is high