MAX7301

更新时间： 2024-11-08 22:12:31

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
18页	1061K
描述
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander

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数据手册

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MAX7301 数据手册

19-2438; Rev 3; 10/03

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and

28-Port I/O Expander

General Description

Features

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 indi-

vidually user configurable to either a logic input or logic

output.

♦ High-Speed 26MHz SPI-/QSPI-™/MICROWIRE™-

Compatible Serial Interface

♦ 2.5V to 5.5V Operation

♦ -40°C to +125°C Temperature Range

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.

♦ 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

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.

Ordering Information

PART

TEMP RANGE

-40°C to +125°C

PIN-PACKAGE

28 DIP

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

data sheet.

MAX7301ANI

MAX7301AAI

MAX7301AAX

MAX7301AGL

28 SSOP

36 SSOP

40 QFN

For a pin-compatible port expander with additional

24mA constant-current LED drive capability, refer to the

MAX6957 data sheet.

Applications

White Goods

Typical Operating Circuit

Automotive

Gaming Machines

Industrial Controllers

System Monitoring

V+

I/O 4

I/O 5

47nF

GND

I/O 6

I/O 7

39kΩ

MAX7301

I/O 8

I/O 9

ISET

P10

P11

P12

P13

P14

P15

P16

P17

P18

P19

P20

P21

P22

P23

I/O 10

I/O 11

CHIP SELECT

CLOCK IN

DATA IN

SCLK

DIN

I/O 12

I/O 13

DATA OUT

DOUT

I/O 14

I/O 15

P31

P30

P29

P28

P27

P26

P25

P24

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

Pin Configurations appear at end of data sheet.

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...18

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与MAX7301相关器件

型号	品牌	获取价格	描述	数据表
MAX7301_06	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301_V01	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V 20-Port and 28-Port I/O Expander
MAX7301AAI	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301AAI+	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301AAI-T	MAXIM	获取价格	Interface Circuit, CMOS, PDSO28, 5.30 MM, MO-150, SSOP-28
MAX7301AAX	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301AAX+	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301AAX+T	MAXIM	获取价格	Interface Circuit, CMOS, PDSO36, 0.300 INCH, 0.80 MM PITCH, ROHS COMPLIANT, SSOP-36
MAX7301AAXT	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301AAX-T	MAXIM	获取价格	Interface Circuit, CMOS, PDSO36, 0.300 INCH, 0.80 MM PITCH, SSOP-36

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