MAX7301ANI+

MAX7301ANI+ Datasheet

MAX7301

Part	Datasheet
MAX7301ANI+	MAX7301ANI+ (pdf)

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MAX7301 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander The MAX7301 compact, serial-interfaced I/O expander or general-purpose I/O GPIO peripheral provides microprocessors with up to 28 ports. Each port is individually user configurable to either a logic input or logic output. Each port can be configured either as a push-pull logic output capable of sinking 10mA and sourcing 4.5mA, or a Schmitt logic input with optional internal pullup. Seven ports feature configurable transition detection logic, which generates an interrupt upon change of port logic level. The MAX7301 is controlled through an SPI -compatible 4-wire serial interface. The MAX7301AAX and MAX7301AGL have 28 ports and are available in 36-pin SSOP and 40-pin QFN packages, respectively. The MAX7301AAI and MAX7301ANI have 20 ports and are available in 28-pin SSOP and 28-pin DIP packages, respectively. For a 2-wire interfaced version, refer to the MAX7300 data sheet. For a pin-compatible port expander with additional 24mA constant-current LED drive capability, refer to the MAX6957 data sheet. White Goods Automotive Gaming Machines Industrial Controllers System Monitoring Pin Configurations appear at end of data sheet. SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. High-Speed 26MHz SPI-/QSPI- /MICROWIRE Compatible Serial Interface 2.5V to 5.5V Operation -40°C to +125°C Temperature Range 20 or 28 I/O Ports, Each Configurable as Push-Pull Logic Output Schmitt Logic Input Schmitt Logic Input with Internal Pullup 11µA max Shutdown Current Logic Transition Detection for Seven I/O Ports PART MAX7301ANI MAX7301AAI MAX7301AAX MAX7301AGL Ordering Information TEMP RANGE -40°C to +125°C -40°C to +125°C -40°C to +125°C -40°C to +125°C PIN-PACKAGE 28 DIP 28 SSOP 36 SSOP 40 QFN Typical Operating Circuit 3V 47nF 36 V+ 3 GND 2 GND 1 ISET MAX7301 CHIP SELECT CLOCK IN DATA IN DATA OUT 35 CS 33 SCLK 34 DIN 4 DOUT 31 P31 29 P30 27 P29 25 P28 24 P27 23 P26 22 P25 21 P24 P4 32 P5 30 P6 28 P7 26 P9 7 P10 9 P11 11 P12 6 P13 8 P14 10 P15 12 P16 13 P17 14 P18 15 P19 16 P20 17 P21 18 P22 19 P23 20 I/O 4 I/O 5 I/O 6 I/O 7 I/O 8 I/O 9 I/O 10 I/O 11 I/O 12 I/O 13 I/O 14 I/O 15 I/O 16 I/O 17 I/O 18 I/O 19 I/O 20 I/O 21 I/O 22 I/O 23 I/O 24 I/O 25 I/O 26 I/O 27 I/O 28 I/O 29 I/O 30 I/O 31 Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at MAX7301 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander ABSOLUTE MAXIMUM RATINGS Voltage with respect to GND V+ to +6V All Other to V+ + 0.3V Current GND Current Continuous Power Dissipation TA = +70°C 28-Pin PDIP derate 20.8mW/°C above +70°C .........1667mW 28-Pin SSOP derate 9.5mW/°C above +70°C ...........762mW 36-Pin SSOP derate 11.8mW/°C above +70°C .........941mW 40-Pin QFN derate 23.25mW/°C above +70°C .......1860mW Operating Temperature Range TMIN, TMAX to +125°C Junction Temperature Storage Temperature Range .............................-65°C to +150°C Lead Temperature soldering, 10s .................................+300°C 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. ELECTRICAL CHARACTERISTICS Typical Operating Circuit, V+ = 2.5V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Note 1 PARAMETER Operating Supply Voltage Shutdown Supply Current Operating Supply Current Output High Operating Supply Current Output Low Operating Supply Current Input INPUTS AND OUTPUTS CONDITIONS ISHDN IGPOH All digital inputs at V+ or GND All ports programmed as outputs high, no load, all other inputs at V+ or GND TA = +25°C TA = -40°C to +85°C TA = TMIN to TMAX TA = +25°C TA = -40°C to +85°C TA = TMIN to TMAX IGPOL All ports programmed as outputs low, no load, all other inputs at V+ or GND TA = +25°C TA = -40°C to +85°C TA = TMIN to TMAX All ports programmed TA = +25°C as inputs without IGPI pullup, ports, and all TA = -40°C to +85°C other inputs at V+ or TA = TMIN to TMAX TYP 180 170 110 MAX 8 10 11 230 250 270 210 230 240 135 UNITS V µA µA Logic High Input Voltage Port Inputs Logic Low Input Voltage Port Inputs Input Leakage Current GPIO Input Internal Pullup to V+ Hysteresis Voltage GPIO Inputs Output High Voltage IIH, IIL IPU GPIO inputs without pullup, VPORT = V+ to GND V+ = 2.5V V+ = 5.5V GPIO outputs, ISOURCE = 2mA, TA = -40°C to +85°C GPIO outputs, ISOURCE = 1mA, TA = TMIN to TMAX Note 2 -100 ±1 +100 120 180

PDF Datasheet Preview

MAX7301
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander

The MAX7301 compact, serial-interfaced I/O expander or general-purpose I/O GPIO peripheral provides microprocessors with up to 28 ports. Each port is individually user configurable to either a logic input or logic output.

Each port can be configured either as a push-pull logic output capable of sinking 10mA and sourcing 4.5mA, or a Schmitt logic input with optional internal pullup. Seven ports feature configurable transition detection logic, which generates an interrupt upon change of port logic level. The MAX7301 is controlled through an SPI -compatible 4-wire serial interface.

The MAX7301AAX and MAX7301AGL have 28 ports and are available in 36-pin SSOP and 40-pin QFN packages, respectively. The MAX7301AAI and MAX7301ANI have 20 ports and are available in 28-pin SSOP and 28-pin DIP packages, respectively.

For a 2-wire interfaced version, refer to the MAX7300 data sheet.

For a pin-compatible port expander with additional 24mA constant-current LED drive capability, refer to the MAX6957 data sheet.

White Goods

Automotive

Gaming Machines

Industrial Controllers

System Monitoring

Pin Configurations appear at end of data sheet.

SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.

High-Speed 26MHz SPI-/QSPI- /MICROWIRE Compatible Serial Interface
2.5V to 5.5V Operation
-40°C to +125°C Temperature Range
20 or 28 I/O Ports, Each Configurable as Push-Pull Logic Output Schmitt Logic Input Schmitt Logic Input with Internal Pullup
11µA max Shutdown Current

Logic Transition Detection for Seven I/O Ports

PART MAX7301ANI MAX7301AAI MAX7301AAX MAX7301AGL
Ordering Information

TEMP RANGE -40°C to +125°C -40°C to +125°C -40°C to +125°C -40°C to +125°C

PIN-PACKAGE 28 DIP 28 SSOP 36 SSOP 40 QFN

Typical Operating Circuit
3V 47nF
36 V+
3 GND 2 GND 1 ISET

MAX7301

CHIP SELECT CLOCK IN DATA IN DATA OUT
35 CS 33 SCLK 34 DIN 4 DOUT
31 P31 29 P30 27 P29 25 P28 24 P27 23 P26 22 P25 21 P24

P4 32 P5 30

P6 28 P7 26

P9 7 P10 9

P11 11 P12 6

P13 8 P14 10 P15 12

P16 13 P17 14 P18 15 P19 16 P20 17

P21 18 P22 19 P23 20

I/O 4 I/O 5 I/O 6 I/O 7 I/O 8 I/O 9 I/O 10 I/O 11

I/O 12 I/O 13 I/O 14 I/O 15 I/O 16 I/O 17 I/O 18 I/O 19

I/O 20 I/O 21 I/O 22 I/O 23

I/O 24 I/O 25 I/O 26 I/O 27 I/O 28 I/O 29 I/O 30 I/O 31

Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at

MAX7301
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander

ABSOLUTE MAXIMUM RATINGS

Voltage with respect to GND V+ to +6V All Other to V+ + 0.3V Current GND Current Continuous Power Dissipation TA = +70°C
28-Pin PDIP derate 20.8mW/°C above +70°C .........1667mW 28-Pin SSOP derate 9.5mW/°C above +70°C ...........762mW
36-Pin SSOP derate 11.8mW/°C above +70°C .........941mW 40-Pin QFN derate 23.25mW/°C above +70°C .......1860mW Operating Temperature Range TMIN, TMAX to +125°C Junction Temperature Storage Temperature Range .............................-65°C to +150°C Lead Temperature soldering, 10s .................................+300°C

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.

ELECTRICAL CHARACTERISTICS

Typical Operating Circuit, V+ = 2.5V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Note 1

PARAMETER Operating Supply Voltage Shutdown Supply Current

Operating Supply Current Output High

Operating Supply Current Output Low

Operating Supply Current Input

INPUTS AND OUTPUTS

CONDITIONS

ISHDN IGPOH

All digital inputs at V+ or GND

All ports programmed as outputs high, no load, all other inputs at V+ or GND

TA = +25°C TA = -40°C to +85°C TA = TMIN to TMAX TA = +25°C TA = -40°C to +85°C TA = TMIN to TMAX

IGPOL

All ports programmed as outputs low, no load, all other inputs at V+ or GND

TA = +25°C TA = -40°C to +85°C TA = TMIN to TMAX

All ports programmed TA = +25°C as inputs without

IGPI
pullup, ports, and all TA = -40°C to +85°C
other inputs at V+ or

TA = TMIN to TMAX

TYP 180 170 110

MAX 8 10 11 230 250 270 210 230 240 135

UNITS V µA µA

Logic High Input Voltage Port Inputs

Logic Low Input Voltage Port Inputs

Input Leakage Current GPIO Input Internal Pullup to V+ Hysteresis Voltage GPIO Inputs

Output High Voltage

IIH, IIL IPU

GPIO inputs without pullup, VPORT = V+ to GND V+ = 2.5V V+ = 5.5V

GPIO outputs, ISOURCE = 2mA, TA = -40°C to +85°C GPIO outputs, ISOURCE = 1mA, TA = TMIN to TMAX Note 2
-100
±1 +100
120 180

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Datasheet ID: MAX7301ANI+ 647398