429D0 (HI-3586 only)

429D1(HI-3586 only)

SIGNAL FUNCTION

DESCRIPTION

NOTE

RINB

INPUT

ARINC receiver negative input. Direct connection to ARINC 429 bus

RINB-40

INPUT

Alternate ARINC receiver negative input. Requires external 40K ohm resistor

MR

INPUT

Master Reset. A positive pulse clears Receive and Transmit data FIFOs and flags

10K ohm pull-down*

SI

INPUT

SPI interface serial data input

10K ohm pull-down*

INPUT

Chip select. Data is shifted into SI and out of SO when

is low.

10K ohm pull-up*

SCK

INPUT

SPI Clock. Data is shifted into or out of the SPI interface using SCK

10K ohm pull-down*

GND

POWER

Chip 0V supply

ACLK

INPUT

Master timing source for the ARINC 429 receiver and transmitter

10K ohm pull-down*

SO

OUTPUT

SPI interface serial data output

RFLAG

OUTPUT

Goes high when ARINC 429 Receive FIFO is empty (CR15=0), or full (CR15=1)

TFLAG

OUTPUT

Goes high when ARINC 429 Transmit FIFO is empty (CR14=0), or full (CR14=1)

V-

POWER

Minus 5V power supply to ARINC 429 Line Driver

(HI-3585 only)

BOUT37

OUTPUT

ARINC line driver negative output. Direct connection to ARINC 429 bus

(HI-3585 only)

BOUT27

OUTPUT

Alternate ARINC line driver negative output. Requires external 10 ohm resistor

(HI-3585 only)

AOUT27

OUTPUT

Alternate ARINC line driver positive output. Requires external 10 ohm resistor

(HI-3585 only)

AOUT37

OUTPUT

ARINC line driver positive output. Direct connection to ARINC 429 bus

(HI-3585 only)

V+

POWER

Positive 5V power supply to ARINC 429 Line Driver

(HI-3585 only)

VDD

POWER

3.3V or 5.0V logic power

RINA-40

INPUT

Alternate ARINC receiver positive input. Requires external 40K ohm resistor

RINA

INPUT

ARINC receiver positive input. Direct connection to ARINC 429 bus

429D1

OUTPUT

Digital positive output to external line driver

(HI-3586 only)

429D0

OUTPUT

Digital negative output to external line driver

(HI-3586 only)

* Internal Pull-up or Pull-down

CS

CS

PIN DESCRIPTIONS

VDD

AOUT27

BOUT27

SPI

Interface

AOUT37

BOUT37

Control Register

Status Register

ARINC 429

Transmit

Data FIFO

ARINC 429

Transmit

Formatter

ARINC 429

Line Driver

(HI-3585 only)

ARINC 429

Received

Data FIFO

Label

Filter

ARINC 429

Valid word

Checker

ARINC 429

Line Receiver

Label

Filter

Bit Map

Memory

RINA-40

RINA

RINB

RINB-40

SCK

CS

SI

SO

V-

RFLAG

ACLK

GND

TFLAG

V+

40 Kohm

40 Kohm

27 Ohm

10 Ohm

10 Ohm

27 Ohm

ARINC

Clock

Divider

BLOCK DIAGRAM

HI-3585, HI-3586

HOLT INTEGRATED CIRCUITS

2