HI-8435 datasheet, PDF - EEWORLD Datasheet

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HI-8435: DescriptionSPECIALTY INTERFACE CIRCUIT; Categorysemiconductor Analog mixed-signal IC; File Size1MB，21 Pages; ManufacturerHolt Integrated Circuits; Websitehttp://www.holtic.com/

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HI-8435 Overview

SPECIALTY INTERFACE CIRCUIT

HI-8435 Parametric

Parameter Name	Attribute value
Number of functions	1
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply voltage 1	3.6 V
Minimum supply voltage 1	3 V
Rated supply voltage 1	3.3 V
state	ACTIVE
Craftsmanship	CMOS
Terminal spacing	0.5000 mm
Temperature level	INDUSTRIAL
Interface Type	INTERFACE CIRCUIT

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HI-8435

September 2018

32-Channel Ground/Open or Supply/Open

Sensor with SPI Interface

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).

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.

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

application of a voltage to supply pull up current to the

GND/Open sensor.

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.

PIN CONFIGURATIONS

- VLOGIC

- SCK

- CSN

- SI

- SO

- MRB

- GND

- SENSE_31

- SENSE_30

- SENSE_29

- SENSE_28

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

HI-8435PQI

HI-8435PQT

HI-8435PQM

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

44 Pin Plastic Quad Flat Pack (PQFP)

10mm x 10mm

44 - VLOGIC

43 - SCK

42 - CSN

41 - SI

40 - SO

39 - MRB

38 - GND

37 - SENSE_31

36 - SENSE_30

35 - SENSE_29

34 - SENSE_28

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

FEATURES

Robust CMOS Silicon-on-Insulator (SOI) technology

32-channel Programmable Sense Operation,

VWET1

SENSE_10

SENSE_11

SENSE_12

SENSE_13

SENSE_14

SENSE_15

SENSE_16

SENSE_17

VWET2

- 12

- 13

- 14

- 15

- 16

- 17

- 18

- 19

- 20

- 21

- 22

20 MHz Serial Peripheral Interface (SPI)

Lightning Protected Sense Inputs

Airbus ABD0100H compliant

MIL-STD-704 compliant

Internal Self-Test

44 Pin Plastic QFN

7mm x 7mm

HOLT INTEGRATED CIRCUITS

www.holtic.com

(DS8435 Rev. K)

VWET1 - 12

NC - 13

SENSE_10 - 14

SENSE_11 - 15

SENSE_12 - 16

SENSE_13 - 17

SENSE_14 - 18

SENSE_15 - 19

SENSE_16 - 20

SENSE_17 - 21

VWET2 - 22

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

Programmable HI/LO Threshold and Hysteresis in

0.5V steps, from 2V to 22V.

Single Low Voltage Supply Operation for low

thresholds applications.

Logic Operation from 3.0V to 3.6V

HI-8435PCI

HI-8435PCT

HI-8435PCM

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

09/18

HI-8435 Related Products

	HI-8435	HI-8435PCI	HI-8435PCIF	HI-8435PCT	HI-8435PCTF	HI-8435PQI	HI-8435PQT	HI-8435PQTF
Description	SPECIALTY INTERFACE CIRCUIT	SPECIALTY INTERFACE CIRCUIT	SPECIALTY INTERFACE CIRCUIT	SPECIALTY INTERFACE CIRCUIT	SPECIALTY INTERFACE CIRCUIT	SPECIALTY INTERFACE CIRCUIT	SPECIALTY INTERFACE CIRCUIT	SPECIALTY INTERFACE CIRCUIT
Number of functions	1	1	1	1	1	1	1	1
Maximum operating temperature	85 Cel	85 °C	85 °C	85 Cel	125 Cel	85 °C	125 °C	125 °C
Minimum operating temperature	-40 Cel	-40 °C	-40 °C	-40 Cel	-55 Cel	-40 °C	-55 °C	-55 °C
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	MILITARY	INDUSTRIAL	MILITARY	MILITARY
Is it Rohs certified?	-	incompatible	conform to	-	-	incompatible	incompatible	conform to
Maker	-	Holt Integrated Circuits	Holt Integrated Circuits	-	-	Holt Integrated Circuits	Holt Integrated Circuits	Holt Integrated Circuits
package instruction	-	HVQCCN,	HVQCCN,	-	-	QFP,	QFP,	QFP,
Reach Compliance Code	-	unknown	compli	-	-	unknown	unknown	compli
ECCN code	-	EAR99	EAR99	-	-	EAR99	EAR99	EAR99
Interface integrated circuit type	-	INTERFACE CIRCUIT	INTERFACE CIRCUIT	-	-	INTERFACE CIRCUIT	INTERFACE CIRCUIT	INTERFACE CIRCUIT
JESD-609 code	-	e0	e3	-	-	e0	e0	e3
length	-	7 mm	7 mm	-	7 mm	10 mm	10 mm	10 mm
Humidity sensitivity level	-	3	3	-	-	3	3	3
encapsulated code	-	HVQCCN	HVQCCN	-	-	QFP	QFP	QFP
Peak Reflow Temperature (Celsius)	-	240	260	-	-	240	240	260
Maximum seat height	-	1 mm	1 mm	-	-	2.45 mm	2.45 mm	2.45 mm
Maximum supply voltage	-	3.6 V	3.6 V	-	3.6 V	3.6 V	3.6 V	3.6 V
Minimum supply voltage	-	3 V	3 V	-	3 V	3 V	3 V	3 V
Nominal supply voltage	-	3.3 V	3.3 V	-	-	3.3 V	3.3 V	3.3 V
technology	-	CMOS	CMOS	-	-	CMOS	CMOS	CMOS
Terminal surface	-	Tin/Lead (Sn/Pb)	Matte Tin (Sn)	-	-	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Matte Tin (Sn)
Terminal pitch	-	0.5 mm	0.5 mm	-	-	0.8 mm	0.8 mm	0.8 mm
Maximum time at peak reflow temperature	-	30	40	-	-	30	30	40
width	-	7 mm	7 mm	-	7 mm	10 mm	10 mm	10 mm

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