hi-8783 Holt Integrated Circuits, Inc., hi-8783 Datasheet

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hi-8783

Manufacturer Part Number
hi-8783
Description
8 Bit Parallel Data In / Arinc Serial Data Out
Manufacturer
Holt Integrated Circuits, Inc.
Datasheet
FEATURES
March 2007
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.
The HI-8784 and HI-8785 require +/- 10 volt supplies in ad-
dition to the 5 volt supply.
(DS8783 Rev. J)
l
l
l
l
l
Automatically converts 8 bit parallel data
to ARINC 429 or 561 serial data
High speed data bus interface
On-chip line driver option
SOIC packages available
Military processing options
HI-8783, HI-8784, HI-8785
8 Bit Parallel Data In / ARINC Serial Data Out
HOLT INTEGRATED CIRCUITS
ARINC 429 & 561 INTERFACE DEVICE
www.holtic.com
PIN CONFIGURATIONS
561 SYNC
(See page 7 for additional pin configurations)
561 SYNC
GND
24-Pin Plastic SOIC - WB package
VCC
20-Pin Plastic SOIC - WB package
NC
D0
D1
D2
D3
D4
D5
D6
D7
VCC
D0
D1
D2
D3
D4
D5
D6
D7
10
11
12
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
HI-8783PST
HI-8784PST
HI-8785PST
HI-8783PSI
HI-8784PSI
HI-8785PSI
&
&
20
19
18
17
16
15
14
13
12
11
561 DATA
DATA ZERO
DATA ONE
PARITY ENB
XMT READY
XMIT CLK
RESET
WRITE
A0
GND
24
23
22
21
20
19
18
17
16
15
14
13
V+
561 DATA
TXBOUT
TXAOUT
V-
PARITY ENB
XMT READY
XMIT CLK
RESET
WRITE
SLP1.5
A0
03/07

Related parts for hi-8783

hi-8783 Summary of contents

Page 1

... 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 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 ...

Page 2

... FUNCTIONAL DESCRIPTION The HI-8783 is a parallel to serial converter, which when loaded with four eight bit parallel bytes, outputs the data bit serial word. Timing circuitry inserts a 4 bit gap at the end of each 32 bit word. An input buffer register allows load operations to take place while the previously loaded word is being transmitted ...

Page 3

... BUS FUNCTIONAL DESCRIPTION (Cont.) The HI-8784 and HI-8785 have the same digital logic func- tion as the HI-8783, but include an on-chip line driver de- signed to directly drive the ARINC 429 bus. The two ARINC outputs (TXAOUT and TXBOUT) provide a differential volt- age to produce a +10 volt One, a -10 volt Zero, and a 0 volt Null ...

Page 4

... TIMING DIAGRAMS GAP XMIT CLK WRITE XMT RDY DATA ONE (HI-8783 only) DATA ZERO (HI-8783 only) ARINC 429 DATA (HI-8784 & HI-8785 only) (TXAOUT-TXBOUT) 561 DATA 561 SYNC DATA BUS BYTE 1 VALID t SET WRITE t WPW A0 t ASW XMT RDY ...

Page 5

... 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. HI-8783, HI-8784 and HI-8785) SYMBOL CONDITION ...

Page 6

... HI-8784 and HI-8785 only) A SYMBOL CONDITION load 100khz load 100khz EE no load, VCC = 5.0V “ “ no load, VCC = 5.0V “ “ I momentary magnitude OUT (HI-8783, HI-8784 and HI-8785) SYMBOL t SET t HLD WPW t WPD t ASW t XD SYMBOL TEST CONDITIONS no load t phlx t plhx t SLP1 ...

Page 7

... ADDITIONAL HI-8783 PIN CONFIGURATION ORDERING INFORMATION HI - 87XX PART NUMBER PART NUMBER PART NUMBER PART NUMBER HI-8783, HI-8784, HI-8785 561 SYNC VCC 561 DATA DATA ZERO 3 20 HI-8783PDI D2 DATA ONE 19 4 & D3 PARITY ENB 5 18 HI-8783PDT D4 XMT READY 6 17 ...

Page 8

... HI-8783, HI-8784, HI-8785 PACKAGE DIMENSIONS 20-PIN PLASTIC SMALL OUTLINE (SOIC (Wide Body) .4065 ± .0125 (10.325 ± .318) .050 BSC (1.27) BSC = “Basic Spacing between Centers” is theoretical true position dimension and has no tolerance. (JEDEC Standard 95) 22-PIN PLASTIC DIP .350 ± .010 (8.89 ± ...

Page 9

... HI-8783, HI-8784, HI-8785 PACKAGE DIMENSIONS 24-PIN PLASTIC SMALL OUTLINE (SOIC 24-PIN PLASTIC SMALL OUTLINE (SOIC (Wide Body) (Wide Body) .407 ± .013 (10.325 ± .32) .050 BSC (1.27) BSC = “Basic Spacing between Centers” is theoretical true position dimension and has no tolerance. (JEDEC Standard 95) .606 ± ...

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