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PDF HI-8787 Data sheet ( Hoja de datos )
| Número de pieza | HI-8787 | |
| Descripción | (HI-8787 / HI-8788) 16-BIT PARALLEL DATA CONVERTED 429&561 SERIAL DATA OUT | |
| Fabricantes | Holt Integrated Circuits | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HI-8787 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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HI-8787, HI-8788
January 2001
DESCRIPTION
The HI-8787 and HI-8788 are system components for
interfacing 16 bit parallel data to an ARINC 429 bus. They
combine logic and line driver on one chip. The HI-8787 has
an output resistance of 37.5 ohms, and the HI-8788 has
output resistance of 10 ohms to facilitate external lightning
protection circuitry. The technology is analog/digital
CMOS.
Both products offer high speed data bus transactions into a
buffer register. After loading 2 16-bit words, data is
automatically 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 automatically sent.
The part requires +/- 10 volt supplies in addition to a 5 volt
supply.
PIN CONFIGURATION
D4 - 1
N/C - 2
D5 - 3
D6 - 4
D7 - 5
D8 - 6
D9 - 7
D10 - 8
HI-8787PQI
HI-8787PQT
HI-8788PQI
&
HI-8788PQT
24 - TXBOUT
23 - TXAOUT
22 - V-
21 - PARITY ENB
20 - XMT RDY
19 - XMIT CLK
18 - RESET
17 - WRITE
www.DataSheet4U.com
FEATURES
32-Pin Plastic TQFP package
l Automatically converts 16 bit parallel data
to ARINC 429 or 561 data
l High speed data bus interface
l On-chip line driver
l Available in small TQFP package
l Military processing options
(DS8787 Rev. B)
HOLT INTEGRATED CIRCUITS
1
01/01
1 page  
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.
VCC = 5.0V, VSS = 0V, V+ = 10V, V- = -10V, TA = Operating Temperature Range (unless otherwise specified).
PARAMETER
SYMBOL
CONDITION
MIN
Operating Voltage
Operating Voltage
Operating Voltage
Min. Input Voltage (HI)
Max. Input Voltage (LO)
Min. Input Current (HI)
Max. Input Current (LO)
Min. Output Voltage (HI)
Max. Output Voltage (LO)
Line Driver Output Levels (Ref. To GND)
ONE
NULL
ZERO
Line Driver Output Levels
(Differential TXAOUT - TXBOUT)
ONE
NULL
ZERO
Minimum Short Circuit Sink or Source Current
Operating Current Drain
Operating Current Drain (V+)
Operating Current Drain (V-)
Input Capacitance
VCC
V+
V-
VIH
VIL
IIH
IIL
VOH
VIH
IOUT
ICC
IDD
IEE
CIN
VIH = 4.9V
VIL = 0.1V
IOUT = -1.6mA
IOUT = 1.6mA
no load, VCC = 5.0V
“
4.75
9.5
-9.5
2.0
-1
2.7
4.5
-0.25
-5.5
no load, VCC = 5.0V
“
“
momentary magnitude
f = 100khz
f = 100khz
f = 100khz
Not tested
9.0
-0.5
-11.0
80
-20
TYP
5
10
-10
1.4
1.4
MAX
5.25
10.5
10.5
0.7
280
0.4
UNITS
V
V
V
V
V
µA
µA
V
V
5.0 5.5
0 0.25
-5.0 -4.5
V
V
V
10.0
0
-10.0
11.0
0.5
-9.0
0.8 2.8
6 20
-6
20
V
V
V
mA
mA
mA
mA
pF
HOLT INTEGRATED CIRCUITS
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet HI-8787.PDF ] | |
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