Datasheet > MAX7325

MAX7325

更新时间： 2023-12-20 18:45:58

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
17页	1001K
描述
I2C端口扩展器，提供8路推挽式I/O和8个漏极开路I/O

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MAX7325 数据手册

EVALUATION KIT AVAILABLE

MAX7325

I C Port Expander with 8 Push-Pull

and 8 Open-Drain I/Os

General Description

Beneﬁts and Features

The MAX7325 2-wire serial-interfaced peripheral features

16 I/O ports. Ports are divided into eight push-pull outputs

and eight I/Os with selectable internal pullups and transition

detection. Eight ports are push-pull outputs and eight I/Os

may be used as a logic input or an open-drain output.

Ports are overvoltage protected to +6V.

● 400kHz I C Serial Interface

● +1.71V to +5.5V Operation

● 8 Push-Pull Outputs

● 8 Open-Drain I/O Ports, Rated to 20mA Sink Current

● I/O Ports are Overvoltage Protected to +6V

● Selectable I/O Port Power-Up Default Logic States

All I/O ports configured as inputs are continuously monitored

for state changes (transition detection). State changes are

indicated by the INT output. The interrupt is latched, allowing

detection of transient changes. When the MAX7325 is

subsequently accessed through the serial interface, any

pending interrupt is cleared. The open-drain outputs are

rated to sink 20mA, and are capable of driving LEDs. The

● Transient Changes are Latched, Allowing Detection

Between Read Operations

●

INT Output Alerts Change on Inputs

● AD0 and AD2 Inputs Select from 16 Slave Addresses

● Low 0.6µA (typ) Standby Current

RST input clears the serial interface, terminating any I C

communication to or from the MAX7325.

● -40°C to +125°C Temperature Range

The MAX7325 uses two address inputs with four-level

logic to allow 16 I C slave addresses. The slave address

Ordering Information

also determines the power-up logic state for the I/O ports,

and enables or disables internal 40kΩ pullups in groups

of four ports.

PART

TEMP RANGE

PIN-PACKAGE

MAX7325AEG+

MAX7325AEG/V+

-40°C to +125°C 24 QSOP

The MAX7325 is one device in a family of pin-compatible

port expanders with a choice of input ports, open-drain

I/O ports, and push-pull output ports (see Table 1).

24 TQFN-EP*

(4mm x 4mm)

MAX7325ATG+

-40°C to +125°C

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

*EP = Exposed paddle.

/V Denotes an automotive qualified part.

The MAX7325 is available in 24-pin QSOP and TQFN

packages and is specified over the -40°C to +125°C

automotive temperature range.

Applications

● Cell Phones

● SAN/NAS

● Servers

Selector Guide

● Notebooks

● Satellite Radio

● Automotive

OPEN-

INTERRUPT

MASK

PUSH-PULL

PART

INPUTS

DRAIN

OUTPUTS

Pin Conﬁgurations

MAX7324

Yes

—

TOP VIEW

MAX7325 Up to 8

MAX7326

MAX7327 Up to 4

Up to 8

—

18 17 16 15 14 13

Yes

—

SCL 19

SDA 20

V+ 21

12 O10

11 O9

10 O8

Up to 4

MAX7325

EXPOSED PADDLE

INT

RST

AD2

GND

Typical Application Circuit and Functional Diagram appear

at end of data sheet.

TQFN (4mm x 4mm)

Pin Configurations continued at end of data sheet.

19-3807; Rev 2; 12/15

12 3 4 5 6 7...17

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与MAX7325相关器件

型号	品牌	描述	获取价格	数据表
MAX7325_12	MAXIM	I2C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os	获取价格
MAX7325_14	MAXIM	I2C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os	获取价格
MAX7325AEG	ROCHESTER	8 I/O, PIA-GENERAL PURPOSE, PDSO24, 0.150 INCH, 0.25 INCH PITCH, MO-137AE, QSOP-24	获取价格
MAX7325AEG	MAXIM	Parallel I/O Port, 8 I/O, BICMOS, PDSO24, 0.150 INCH, 0.25 INCH PITCH, MO-137AE, QSOP-24	获取价格
MAX7325AEG/V+	MAXIM	I2C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os	获取价格
MAX7325AEG+	MAXIM	I2C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os	获取价格

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