Datasheet > HI-8435

HI-8435

更新时间： 2024-11-07 12:07:35

品牌	Logo	应用领域
HOLTIC		/
页数	文件大小	规格书
21页	220K
描述
32-Channel Ground/Open or Supply/Open

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HI-8435 数据手册

HI-8435

32-Channel Ground/Open or Supply/Open

Sensor with SPI Interface

July 2013

APPLICATION

· Avionics Discrete to Digital Sensing

GENERAL DESCRIPTION

The HI-8435 is a 32-channel discrete-to-digital sensor

fabricated with Silicon-on-Insulator (SOI) technology

designed to interface with a Serial Peripheral Interface

(SPI).

PIN CONFIGURATIONS

Four banks of 8 sense inputs can be programmed as either

GND/Open or Supply/Open sensors. Supply/Open

sensing is also referred to as 28V/Open sensing.

All sense inputs are internally lightning protected to

DO160G, Section 22, Cat AZ, BZ and ZZ without external

components.

VWET0 - 1

SENSE_0 - 2

SENSE_1 - 3

SENSE_2 - 4

SENSE_3 - 5

SENSE_4 - 6

SENSE_5 - 7

SENSE_6 - 8

SENSE_7 - 9

SENSE_8-10

SENSE_9-11

33 - SENSE_27

32 - VWET3

31 - SENSE_26

30 - SENSE_25

29 - SENSE_24

28 - SENSE_23

27 - SENSE_22

26 - SENSE_21

25 - SENSE_20

24 - SENSE_19

23 - SENSE_18

HI-8435PQI

HI-8435PQT

The sensing circuit window comparator thresholds are set

by programming the center threshold and hysteresis

registers to values from 2V to 22V. The digital values of the

sensed inputs can be read either one bank at a time or all 4

banks with one command.

Each bank of sensors have a VWETn pin available for

optional application of a voltage higher than the logic

supply to provide wetting current to Ground side relay

contacts. If the Ground offset is small, then the wetting

source will automatically be provided from VLOGIC without

connecting VWETn.

44 Pin Plastic Quad Flat Pack (PQFP)

10mm x 10mm

Interface to the digital subsystem is simple CMOS logic

inputs and outputs. The logic pins are compatible with 3.3V

logic allowing direct connection to a wide range of

microcontrollers or FPGAs.

FEATURES

· Robust CMOS Silicon-on-Insulator (SOI) technology

VWET0 -

SENSE_0 -

SENSE_1 -

SENSE_2 -

SENSE_3 -

SENSE_4 -

SENSE_5 -

SENSE_6 -

SENSE_7 -

33 - SENSE_27

32 - VWET3

^·32-channel Programmable Sense Operation,

GND/Open or Supply/Open, 4 X 8 Input Sensors

31 - SENSE_26

30 - SENSE_25

29 - SENSE_24

28 - SENSE_23

27 - SENSE_22

26 - SENSE_21

25 - SENSE_20

24 - SENSE_19

23 - SENSE_18

^·Programmable HI/LO Threshold and Hysteresis in

0.5V steps, from 2V to 22V.

HI-8435PC

^·Single Low Voltage Supply Operation for low

thresholds applications.

SENSE_8 -10

SENSE_9 -11

^·Logic Operation from 3.0V to 3.6V

^·20 MHz Serial Peripheral Interface (SPI)

^·Lightning Protected Sense Inputs

^·Airbus ABD0100H compliant

^·MIL-STD-704 compliant

44 Pin Plastic QFN

7mm x 7mm

^·Internal Self-Test

HOLT INTEGRATED CIRCUITS

www.holtic.com

(DS8435 Rev. C)

07/13

12 3 4 5 6 7...21

中文翻译

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与HI-8435相关器件

型号	品牌	获取价格	描述	数据表
HI-8435PCI	HOLTIC	获取价格	32-Channel Ground/Open or Supply/Open
HI-8435PCIF	HOLTIC	获取价格	32-Channel Ground/Open or Supply/Open
HI-8435PCT	HOLTIC	获取价格	32-Channel Ground/Open or Supply/Open
HI-8435PCTF	HOLTIC	获取价格	32-Channel Ground/Open or Supply/Open
HI-8435PQI	HOLTIC	获取价格	32-Channel Ground/Open or Supply/Open
HI-8435PQIF	HOLTIC	获取价格	32-Channel Ground/Open or Supply/Open
HI-8435PQT	HOLTIC	获取价格	32-Channel Ground/Open or Supply/Open
HI-8435PQTF	HOLTIC	获取价格	32-Channel Ground/Open or Supply/Open
HI-8436	HOLTIC	获取价格	32-Channel Ground/Open or Supply/Open
HI-8436PCI	HOLTIC	获取价格	32-Channel Ground/Open or Supply/Open

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