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MAX7301AAXT

更新时间： 2024-11-29 11:46:39

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
17页	277K
描述
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander

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MAX7301AAXT 数据手册

19-2438; Rev 6; 4/06

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 MAX7301ATL have 28 ports and

are available in 36-pin SSOP and 40-pin TQFN packages,

respectively. The MAX7301AAI has 20 ports and is avail-

able in a 28-pin SSOP package.

Ordering Information

For a 2-wire I²C-interfaced version, refer to the

MAX7300 data sheet.

PIN-

PACKAGE

PKG

CODE

PART

TEMP RANGE

For a pin-compatible port expander with additional

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

MAX6957 data sheet.

MAX7301AAI+

MAX7301AAX+

MAX7301ATL+

-40°C to +125°C

28 SSOP

36 SSOP

40 TQFN

A28-1

A36-4

T4066-5

+Denotes lead-free package.

Applications

Typical Operating Circuit

White Goods

Automotive

V+

I/O 4

I/O 5

Gaming Machines

Industrial Controllerss

System Monitoring

47nF

GND

I/O 6

I/O 7

39kΩ

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

MAX7301

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

SSOP

I/O 24

I/O 25

I/O 26

I/O 27

I/O 28

I/O 29

I/O 30

I/O 31

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

Pin Configurations appear at end of data sheet.

________________________________________________________________ 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...17

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与MAX7301AAXT相关器件

型号	品牌	获取价格	描述	数据表
MAX7301AAX-T	MAXIM	获取价格	Interface Circuit, CMOS, PDSO36, 0.300 INCH, 0.80 MM PITCH, SSOP-36
MAX7301AGL	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301AGL-T	MAXIM	获取价格	Interface Circuit, CMOS, 6 X 6 MM, 0.90 MM HEIGHT, MO-220, QFN-40
MAX7301ANI	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301ANI+	MAXIM	获取价格	Interface Circuit, CMOS, PDIP28, 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-28
MAX7301ATL	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301ATL+	MAXIM	获取价格	4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301ATL+GH7	MAXIM	获取价格	Interface Circuit, CMOS, 6 X 6 MM, 0.80 MM PITCH, LEAD FREE, MO-220, TQFN-40
MAX7301ATL+T	MAXIM	获取价格	Interface Circuit, CMOS, 6 X 6 MM, 0.80 MM PITCH, ROHS COMPLIANT, MO-220, TQFN-40
MAX7301ATL+TGH7	MAXIM	获取价格	Interface Circuit, CMOS, 6 X 6 MM, 0.80 MM PITCH, LEAD FREE, MO-220, TQFN-40

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