Datasheet > MAX7301_V01

MAX7301_V01

更新时间： 2024-11-28 02:51:03

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
17页	1142K
描述
4-Wire-Interfaced, 2.5V to 5.5V 20-Port and 28-Port I/O Expander

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MAX7301_V01 数据手册

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MAX7301

4-Wire-Interfaced, 2.5V to 5.5V,

20-Port and 28-Port I/O Expander

General Description

Beneﬁts and Features

● Industry-Standard 4-Wire Interface Simplifies

Expansion of I/O Ports to Up to 28 I/Os Independent

of Microprocessor Architecture

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 individu-

ally user configurable to either a logic input or logic output.

• High-Speed, 26MHz, SPI-/QSPI™-/MICROWIRE -

Compatible Serial Interface

• 2.25V to 5.5V Operation

• 20 or 28 I/O Ports Conﬁgurable as Push-Pull Logic

Output, Schmitt Logic Input or Schmitt Logic Input

with Internal Pullup

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.

• Logic Transition Detection for Seven I/O Ports

● Low Power Consumption Reduces Power-Supply

Requirements

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.

• 11μA (max) Shutdown Current

Typical Operating Circuit

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

data sheet.

V+

I/O 4

I/O 5

For a pin-compatible port expander with additional

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

MAX6957 data sheet.

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

MAX7301

Applications

● White Goods

● Gaming Machines

● Industrial Controllers

● System Monitoring

I/O 10

I/O 11

CHIP SELECT

CLOCK IN

DATA IN

SCLK

I/O 12

I/O 13

DIN

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

Ordering Information

I/O 20

I/O 21

PIN-

PART

TEMP RANGE

PACKAGE

I/O 22

I/O 23

MAX7301AAI+

MAX7301AAX+

MAX7301ATL+

-40°C to +125°C

28 SSOP

SSOP

36 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

40 TQFN-EP*

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

QSPI is a trademark of Motorola, Inc.

MICROWIRE is a registered trademark of National

Semiconductor Corp.

Pin Configurations appear at end of data sheet.

19-2438; Rev 10; 8/20

12 3 4 5 6 7...17

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与MAX7301_V01相关器件

型号	品牌	获取价格	描述	数据表
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
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

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