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PDF HI-8785 Data sheet ( Hoja de datos )
| Número de pieza | HI-8785 | |
| Descripción | (HI-8783 - HI-8785) 8 bit parallel data converted to 429 & 561 serial data out | |
| Fabricantes | Holt Integrated Circuits | |
| Logotipo |  |
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HI-8783, HI-8784, HI-8785
ARINC INTERFACE DEVICE
September 2006 8 bit parallel data converted to 429 & 561 serial data out
DESCRIPTION
The HI-8783, HI-8784, and HI-8785 are system compo-
nents for interfacing 8 bit parallel data to an ARINC 429
bus. The HI-8783 is a logic device only and requires a sep-
arate line driver circuit, such as the HI-3182 or HI-8585.
The HI-8784 and HI-8785 combine logic and line driver on
one chip. The HI-8784 has an output resistance of 37.5
ohms, and the HI-8785 has an output resistance of 10
ohms to facilitate external lightning protection cicuitry. The
technology is analog/digital CMOS.
The HI-8783 is available in a 22 pin DIP format as a second
source replacement for the Micrel / California Devices
DLS-111BV.
The products offer high speed data bus data transactions
to a buffer register. After loading 4 bytes, data is automati-
cally transferred and transmitted. The data rate is equal to
the clock rate. Parity can be enabled in the 32nd bit. Reset
is used to initialize the logic upon startup. Word gaps are
transmitted automatically.
www.DataSheet4U.com
The HI-8784 and HI-8785 require +/- 10 volt supplies in ad-
dition to the 5 volt supply.
PIN CONFIGURATIONS
VCC 1
20 561 DATA
561 SYNC 2
19 DATA ZERO
D0 3
18 DATA ONE
D1 4 HI-8783PSI 17 PARITY ENB
&
D2 5 HI-8783PST 16 XMT READY
D3 6
15 XMIT CLK
D4 7
14 RESET
D5 8
13 WRITE
D6 9
12 A0
D7 10
11 GND
20-Pin Plastic SOIC - WB package
FEATURES
l Automatically converts 8 bit parallel data
to ARINC 429 or 561 serial data
l High speed data bus interface
l On-chip line driver option
l SOIC packages available
l Military processing options
VCC 1
561 SYNC 2
D0 3
D1 4
D2 5
D3 6
D4 7
D5 8
D6 9
NC 10
D7 11
GND 12
HI-8784PSI
HI-8784PST
HI-8785PSI
&
HI-8785PST
24 V+
23 561 DATA
22 TXBOUT
21 TXAOUT
20 V-
19 PARITY ENB
18 XMT READY
17 XMIT CLK
16 RESET
15 WRITE
14 SLP1.5
13 A0
24-Pin Plastic SOIC - WB package
(See page 7 for additional pin configurations)
(DS8783 Rev.I)
HOLT INTEGRATED CIRCUITS
www.holtic.com
09/06
1 page  
HI-8783, HI-8784, HI-8785
LINE DRIVER OUTPUTS
XMT CLK
t plhx
DATA ONE
DATA ZERO
DIFFERENTIAL VOLTAGE
TXAOUT - TXBOUT
10%
t phlx
t plhx
t phlx
t rx
90%
t rx
90%
10%
10%
t fx
5V
0V
5V
0V
10V
0V
-10V
t fx
ABSOLUTE MAXIMUM RATINGS
Voltages referenced to Ground
Supply voltages
V+.................................................12.5V
V-.................................................-12.5V
VCC.................................................. 7V
DC current per input pin................ +10ma
Power dissipation at 25°
plastic DIL............1.0W, derate 10mW/°C
ceramic DIL..........0.5W, derate 7mW/°C
Solder Temperature ........275°C for 10 sec
Storage Temperature........-65°C to +150°C
RECOMMENDED OPERATING CONDITIONS
Supply Voltages
V+.......................................+10V... ±5%
V-........................................ -10V... ±5%
VCC....................................... 5V... ±5%
Temperature Range
Industrial Screening.........-40°C to +85°C
Hi-Temp Screening........-55°C to +125°C
Military Screening..........-55°C to +125°C
NOTE: Stresses above absolute maximum
ratings or outside recommended operating
conditions may cause permanent damage to the
device. These are stress ratings only. Operation at
the limits is not recommended.
DC ELECTRICAL CHARACTERISTICS (HI-8783, HI-8784 and HI-8785)
VCC = 5.0V, VSS = 0V, TA = Operating Temperature Range (unless otherwise specified).
PARAMETER
SYMBOL
CONDITION
Operating Voltage
VCC
Min. Input Voltage (HI)
VIH
Max. Input Voltage (LO)
VIL
Min. Input Current (HI)
IIH VIH = 4.9V
Max. Input Current (LO)
IIL VIL = 0.1V
Min. Output Voltage (HI)
VOH
IOUT = -1.6mA
Max. Output Voltage (LO)
VIH IOUT = 1.6mA
Operating Current Drain
ICC f = 100khz
Input Capacitance
CIN Not tested
MIN
4.75
2.0
-1
2.7
TYP
5
1.4
1.4
0.8
MAX
5.25
0.8
1
0.4
2.8
20
UNITS
V
V
V
µA
µA
V
V
mA
pF
HOLT INTEGRATED CIRCUITS
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet HI-8785.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HI-8783 | (HI-8783 - HI-8785) 8 bit parallel data converted to 429 & 561 serial data out | Holt Integrated Circuits |
| HI-8784 | (HI-8783 - HI-8785) 8 bit parallel data converted to 429 & 561 serial data out | Holt Integrated Circuits |
| HI-8785 | (HI-8783 - HI-8785) 8 bit parallel data converted to 429 & 561 serial data out | Holt Integrated Circuits |
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