Datasheet > MAX7300

MAX7300

更新时间： 2024-11-07 14:57:23

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	1060K
描述
2线接口、2.5V至5.5V、20端口或28端口输入/输出扩展器

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中文翻译

获取价格

数据手册

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MAX7300 数据手册

MAX7300

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

20-Port or 28-Port I/O Expander

General Description

Features

● 400kbps I2C-Compatible Serial Interface

The MAX7300 compact, serial-interfaced, I/O expansion

peripheral provides microprocessors with up to 28 ports.

Each port is individually user configurable to either a logic

input or logic output.

● 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

Each port can be configured as either 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

MAX7300 is controlled through an I²C-compatible 2-wire

serial interface, and uses four-level logic to allow 16 I²C

addresses from only two select pins.

Schmitt Logic Input

Schmitt Logic Input with Internal Pullup

● 11µA (max) Shutdown Current

● Logic Transition Detection for Seven I/O Ports

Ordering Information

PART

TEMP RANGE

-40°C to +125°C

PIN-PACKAGE

28 SSOP

The MAX7300AAX and MAX7300ATL have 28 ports and

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

respectively. The MAX7300AAI and MAX7300ATI have 20

ports and are available in 28-pin SSOP and TQFN pack-

ages. For an SPI-interfaced version, refer to the MAX7301

data sheet. For a pin-compatible port expander with addi-

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

the MAX6956 data sheet.

MAX7300AAI

MAX7300ATI

28 TQFN-EP*

36 SSOP

MAX7300AAX

MAX7300ATL

*EP = Exposed pad.

Devices are also available in a lead(Pb)-free/RoHS-compliant

package. Specify lead-free by adding “+” to the part number

when ordering. Devices are also available in tape-and-reel

packaging. Specify tape and reel by adding “T” to the part

number when ordering.

40 TQFN-EP*

Application

● White Goods

● System Monitoring

● Industrial Controllers

Typical Operating Circuit

Pin Conﬁgurations

I/O 4

I/O 5

V+

GND

I/O 6

47nF

39kΩ

TOP VIEW

GND

ISET

I/O 7

ISET

GND

AD0

P12

P13

P14

P15

P16

28 V+

I/O 8

I/O 9

27 AD1

26 SCL

25 SDA

P10

P11

P12

P13

P14

P15

P16

P17

P18

P19

P20

P21

P22

P23

I/O 10

I/O 11

I/O 12

I/O 13

I/O 14

I/O 15

AD1

AD0

SDA

SCL

MAX7300AAX

DATA

CLOCK

24 P31

MAX7300

23 P30

22 P29

21 P28

20 P27

19 P26

18 P25

17 P24

16 P23

15 P22

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

P17 10

P18 11

P19 12

P20 13

P21 14

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

28 SSOP

Pin Configurations continued at end of data sheet.

19-2413; Rev 8; 5/14

12 3 4 5 6 7...20

中文翻译

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与MAX7300相关器件

型号	品牌	获取价格	描述	数据表
MAX7300_11	MAXIM	获取价格	2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander
MAX7300AAI	MAXIM	获取价格	2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander
MAX7300AAI+	MAXIM	获取价格	Interface Circuit, CMOS, PDSO28, 5.30 MM, MO-150, SSOP-28
MAX7300AAX	MAXIM	获取价格	2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander
MAX7300AAX+T	MAXIM	获取价格	Interface Circuit, CMOS, PDSO36, 0.80 MM PITCH, SSOP-36
MAX7300AAX-T	MAXIM	获取价格	Interface Circuit, CMOS, PDSO36, 0.80 MM PITCH, SSOP-36
MAX7300AG	MAXIM	获取价格	Interface Circuit, CMOS, 5 X 5 MM, 0.80 MM HEIGHT, QFN-40
MAX7300AGL	MAXIM	获取价格	2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander
MAX7300AGL+	MAXIM	获取价格	Interface Circuit, CMOS, 6 X 6 MM, 0.90 MM HEIGHT, MO-220, QFN-40
MAX7300AGL-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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