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PDF HI-8424 Data sheet ( Hoja de datos )
| Número de pieza | HI-8424 | |
| Descripción | 6-Channel / 8-Channel Discrete-to-Digital Interface | |
| Fabricantes | HOLTIC | |
| Logotipo |  |
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December 2013
HI-8421, HI-8424
6-Channel / 8-Channel Discrete-to-Digital Interface
Sensing 28V / Open Signals
DESCRIPTION
The HI-8421 is a six channel discrete-to-digital interface
device.The HI-8424 has eight channels. Mixed-signal
CMOS technology is used to provide superior low-power
performance. The device inputs are configured to sense
28V / Open discrete signals. The device outputs are CMOS
/ TTL compatible and may be disabled (tri-state) using the
CE and OE pins.
The HI-8421 is a drop-in replacement for the DEI1054.
For added functionality, the Holt HI-8422 offers eight
channels of Open / Ground sensing and eight channels of
28V / Ground sensing in a single device.
BLOCK DIAGRAM
VDD
OE
CE
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
GND
3.6V Reference
66 K
29 K
66 K
29 K
66 K
29 K
66 K
29 K
66 K
29 K
66 K
29 K
66 K
29 K
66 K
29 K
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
FEATURES
! 6 or 8 independent 28V / Open sensing channels
! 5.0V single supply operation
! Low power CMOS technology
! Industrial and Extended Temperatures
! HI-8421 is a drop in replacement for DEI1054
PIN CONFIGURATIONS
IN1 1
IN2 2
IN3 3
IN4 4
IN5 5
IN6 6
OE 7
CE 8
HI-8421PSI
HI-8421PST
16 GND
15 OUT1
14 OUT2
13 OUT3
12 OUT4
11 OUT5
10 OUT6
9 VDD
16-Pin Plastic SOIC package
(Narrow Body)
IN1 1
IN2 2
IN3 3
IN4 4
IN5 5
IN6 6
IN7 7
OE 8
CE 9
VDD 10
HI-8424PTI
HI-8424PTT
20 GND
19 OUT1
18 OUT2
17 OUT3
16 IN8
15 OUT4
14 OUT5
13 OUT6
12 OUT7
11 OUT8
20 Pin TSSOP package
FUNCTION TABLE
Discrete
Input
Open
28 Volts
X
X
CE OE Output
00
1
00
0
1 X High Z
X 1 High Z
(DS8421 Rev. G)
HOLT INTEGRATED CIRCUITS
www.holtic.com
12/13
1 page  
PACKAGE DIMENSIONS
16-PIN PLASTIC SMALL OUTLINE (SOIC) - NB
(Narrow Body)
9.90
(0.390)
BSC
0.175 ± 0.075
(0.007 ± 0.003)
6.00
(0.236)
BSC
Top View
3.90
(0.154)
BSC
0.410 ± 0.100
(0.016 ± 0.004)
See Detail A
millimeters (inches)
Package Type: 16HN
(01..02459)min
1.27
(0.050)
BSC
BSC = “Basic Spacing between Centers”
is theoretical true position dimension and
has no tolerance. (JEDEC Standard 95)
0° to 8°
0.835 ± 0.435
(0.033 ± 0.017)
0.175 ± 0.075
(0.007 ± 0.003)
Detail A
20-PIN PLASTIC TSSOP
millimeters(inches)
Package Type: 20HS
6.400 ± 0.150
(0.252 ± 0.006)
6.500 ± 0.100
(0.256 ± .004)
Pin 1
4.400 ± 0.100
(0.173 ± 0.004)
0.220 ± 0.050
(0.0087 ± 0.002)
0.145 ± 0.055
(0.006 ± 0.002)
See Detail A
0.925 ± 0.125
(0.036 ± 0.005)
(00..605206)BSC
BSC = “Basic Spacing between Centers”
is theoretical true position dimension and
has no tolerance. (JEDEC Standard 95)
0° to 8°
0.600 ± 0.150
(0.024 ± 0.006)
0.100 ± 0.050
(0.004 ± 0.002)
Detail A
HOLT INTEGRATED CIRCUITS
5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet HI-8424.PDF ] | |
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