Datasheet > MAX7311

MAX7311

更新时间： 2024-12-01 14:57:35

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亚德诺 - ADI		/
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描述
2线接口、16位输入/输出端口扩展器，带有中断和热插入保护

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MAX7311 数据手册

19-2747; Rev 4; 4/05

2-Wire-Interfaced 16-Bit I/O Port Expander

with Interrupt and Hot-Insertion Protection

General Description

Features

♦ 400kbps I²C-Compatible Serial Interface

The MAX7311 2-wire-interfaced expander provides 16-bit

parallel input/output (I/O) port expansion for SMBus™

and I²C applications. The MAX7311 consists of input

port registers, output port registers, polarity inversion reg-

isters, configuration registers, a bus timeout register, and

an I²C-compatible serial interface logic compatible with

SMBus. The system master can invert the MAX7311 input

data by writing to the active-high polarity inversion regis-

ter. The system master can enable or disable bus timeout

by writing to the bus timeout register.

♦ 2V to 5.5V Operation

♦ 5V Overvoltage Tolerant I/Os

♦ Supports Hot Insertion

♦ 16 I/O Pins that Default to Inputs on Power-Up

♦ 100kΩ Pullup on Each I/O

♦ Open-Drain Interrupt Output (INT)

♦ Bus Timeout for Lock-Up-Free Operation

♦ Noise Filter on SCL / SDA Inputs

♦ 64 Slave ID Addresses Available

♦ Low Standby Current (2.9µA typ)

♦ Polarity Inversion

Any of the 16 I/O ports can be configured as an input or

output. A power-on reset (POR) initializes the 16 I/Os

as inputs. Three address select pins configure one of

64 slave ID addresses.

The MAX7311 supports hot insertion. All port pins, the

INT output, SDA, SCL and the slave address inputs

AD0–2 remain high impedance in power down (V+ =

0V) with up to 6V asserted upon them.

♦ 4mm ✕ 4mm, 0.8mm Thin QFN Package

♦ -40°C to +125°C Operation

The MAX7311 is available in 24-pin SO, SSOP, TSSOP,

and thin QFN packages and is specified over the -40°C

to +125°C automotive temperature range.

Ordering Information

For applications requiring I/Os without pullup resistors,

refer to the MAX7312 data sheet.

PKG

CODE

PART

TEMP RANGE PIN-PACKAGE

Applications

MAX7311AWG -40°C to +125°C 24 Wide SO

MAX7311AAG -40°C to +125°C 24 SSOP

—

Servers

RAID Systems

24 Thin QFN

MAX7311ATG -40°C to +125°C

(4mm ✕ 4mm)

T2444-4

—

Industrial Control

Medical Equipment

PLCs

MAX7311AUG -40°C to +125°C 24 TSSOP

SMBus is a trademark of Intel Corp.

Instrumentation and Test Measurement

Pin Configurations

TOP VIEW

18 17 16 15 14 13

24 V

INT

AD1

AD2

I/O0

I/O1

I/O2

I/O3

I/O4

I/O5

SCL 19

SDA 20

V+ 21

12 I/O10

11 I/O9

10 I/O8

23 SDA

22 SCL

21 AD0

20 I/O15

19 I/O14

18 I/O13

17 I/O12

16 I/O11

15 I/O10

14 I/O9

13 I/O8

MAX7311ATG

INT

AD1

AD2

GND

I/O7

I/O6

MAX7311

THIN QFN

I/O6 10

I/O7 11

GND 12

TSSOP/SSOP/SO

________________________________________________________________ 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...16

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与MAX7311相关器件

型号	品牌	获取价格	描述	数据表
MAX7311AAG	MAXIM	获取价格	2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection
MAX7311AAG	NXP	获取价格	IC,I/O PORT,16-BIT,BICMOS,SSOP,24PIN,PLASTIC
MAX7311AAG+	NXP	获取价格	IC,I/O PORT,16-BIT,BICMOS,SSOP,24PIN,PLASTIC
MAX7311AAG+	MAXIM	获取价格	Parallel I/O Port, 16-Bit, 16 I/O, BICMOS, PDSO24, 5.30 MM, MO-150, SSOP-24
MAX7311AAG+T	MAXIM	获取价格	Parallel I/O Port, 16-Bit, 16 I/O, BICMOS, PDSO24, 5.30 MM, MO-150, SSOP-24
MAX7311AAG-T	MAXIM	获取价格	Parallel I/O Port, 16-Bit, 16 I/O, BICMOS, PDSO24, 5.30 MM, MO-150, SSOP-24
MAX7311ATG	MAXIM	获取价格	2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection
MAX7311ATG+	MAXIM	获取价格	Parallel I/O Port, 16-Bit, 16 I/O, BICMOS, 4 X 4 MM, 0.80 MM HEIGHT, MO-153, TQFN-24
MAX7311ATG+	NXP	获取价格	IC,I/O PORT,16-BIT,BICMOS,LLCC,24PIN,PLASTIC
MAX7311ATG+GH7	MAXIM	获取价格	Parallel I/O Port, 16 I/O, BICMOS, TQFN-24

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