MAX7318 datasheet(2/16 Pages) MAXIM

Part #	MAX7318

Description	2-Wire-Interfaced, 16-Bit, I/O Port Expander with Interrupt and Hot-Insertion Protection

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Manufacturer	MAXIM [Maxim Integrated Products]

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2 / 16 page

2-Wire-Interfaced, 16-Bit, I/O Port Expander

with Interrupt and Hot-Insertion Protection

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(V+ = 2V to 5.5V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25°C.) (Note 1)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

V+ to GND ................................................................-0.3V to +6V

I/O0–I/O15 as Inputs ....................................(GND - 0.3V) to +6V

SCL, SDA, AD0, AD1, AD2, INT...................(GND - 0.3V) to +6V

Maximum V+ Current......................................................+250mA

Maximum GND Current ...................................................-250mA

DC Input Current on I/O0–I/O15 .......................................±20mA

DC Output Current on I/O0–I/O15 ....................................±80mA

Continuous Power Dissipation (TA = +70°C)

24-Pin Wide SO (derate 11.8mW/°C above +70°C) ....941mW

24-Pin SSOP (derate 8.0mW/°C above +70°C) ...........640mW

24-Pin TSSOP (derate 12.2mW/°C above +70°C) .......976mW

24-Pin Thin QFN (derate 20.8mW/°C above +70°C) .1667mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

V+

2.0

5.5

V

V+ = 2V

24

36

V+ = 3.3V

45

62

Supply Current

I

+

All I/Os unloaded,

fSCL = 400kHz

V+ = 5.5V

83

124

µA

V+ = 2V

4.8

12.1

V+ = 3.3V

5.4

14.4

Standby Current

ISTBY

All I/Os unloaded,

fSCL = 0

V+ = 5.5V

6.4

19.4

µA

Power-On Reset Voltage

VPOR

1.4

1.7

V

SCL, SDA

Input Voltage Low

VIL

0.3 x V+

V

Input Voltage High

VIH

0.7 x V+

V

Low-Level Output Voltage

VOL

ISINK = 6mA

0.4

V

Leakage Current

IL

-1

+1

µA

Input Capacitance

10

pF

I/O_

Input Voltage Low

VIL

0.8

V

Input Voltage High

VIH

1.8

V

Input Leakage Current

TA = -40°C to +85°C; includes internal

pullup current, VIO = V+

1µA

Internal Pullup Current

TA = -40°C to +85°C, VIO = 0

34

100

µA

V+ = 2V, VOL = 0.5V

8.5

17

V+ = 3.3V, VOL = 0.5V

17

32

Low-Level Output Current

ISINK

V+ = 5V, VOL = 0.5V

43

mA

V+ = 3.3V, VOH = 2.4V

29

41

High Output Current

ISOURCE

V+ = 5V, VOH = 4.5V

31

mA

AD0, AD1, AD2

Input Voltage Low

VIL

0.3 x V+

V

Input Voltage High

VIH

0.7 x V+

V

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