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MAX7312

更新时间： 2024-11-29 22:12:31

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
17页	373K
描述
2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection

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MAX7312 数据手册

19-3057; Rev 0; 10/03

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

with Interrupt and Hot-Insertion Protection

General Description

Features

o 400kbps I C-Compatible Serial Interface

The MAX7312 2-wire-interfaced expander provides 16-bit

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

o 2V to 5.5V Operation

I C™ applications. The MAX7312 consists of input port

o 5V Overvoltage Tolerant I/Os

registers, output port registers, polarity inversion regis-

ters, configuration registers, a bus timeout register, and

o Supports Hot Insertion

an I C-compatible serial interface logic, compatible with

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

o Open-Drain Interrupt Output (INT)

o Bus Timeout for Lock-Up-Free Operation

o Noise Filter on SCL/SDA Inputs

o 64 User-Selectable Slave ID Addresses

o Low Standby Current (2.9µA typ)

o Polarity Inversion

SMBus. The system master can invert the MAX7312 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.

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

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

as inputs. Three address select pins configure the part

to one of 64 slave ID addresses.

The MAX7312 supports hot insertion. All port pins, the

o 4mm ✕ 4mm, 0.8mm Thin QFN Package

o -40°C to +125°C Operation

INT output, SDA, SCL, and the slave address inputs

AD0-2 remain high impedance in power-down (V = 0V)

up to 6V.

Ordering Information

The MAX7312 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.

PART

TEMP RANGE PIN-PACKAGE

MAX7312AWG -40°C to +125°C 24 Wide SO

MAX7312AAG -40°C to +125°C 24 SSOP

MAX7312ATG -40°C to +125°C 24 Thin QFN (4mm x 4mm)

MAX7312AUG -40°C to +125°C 24 TSSOP

SMBus is a trademark of Intel Corp.

For applications requiring I/Os with integrated 100kΩ

pullup resistors, refer to the MAX7311 data sheet.

Applications

Servers/Blades

RAID Systems

Medical Equipment

Instrumentation and Test Measurement

Networking

I C Purchase of I C components of Maxim Integrated Products,

Inc., or one of its Sublicense Associate Companies conveys a

license under the Philips I C Patent Rights to use these compo-

nents in an I C system provided that the system conforms to the

I C Standard Specifications as defined by Philips.

Pin Configurations

TOP VIEW

AD2 AD1 INT

SDA SCL

24 23 22 21 20 19

24 V

INT

AD1

AD2

I/O0

I/O1

I/O2

I/O3

I/O4

I/O5

I/O0

AD0

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

I/O1

I/O2

I/O3

17 I/O15

I/O14

I/O13

MAX7312

I/O4

I/O5

I/O12

I/O11

10 11 12

I/O6 I/O7 GND I/O8 I/O9 I/O10

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...17

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与MAX7312相关器件

型号	品牌	获取价格	描述	数据表
MAX73123	MAXIM	获取价格	5V, 12V, 15V STEP-UP, CURRENT-MODE PWM DC-DC CONVERTER
MAX7312AAG	MAXIM	获取价格	2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection
MAX7312AAG+	MAXIM	获取价格	Parallel I/O Port, 16-Bit, 16 I/O, BICMOS, PDSO24, 5.30 MM, ROHS COMPLIANT, MO-150, SSOP-2
MAX7312ATG	MAXIM	获取价格	2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection
MAX7312ATG	ROCHESTER	获取价格	16 I/O, PIA-GENERAL PURPOSE, QCC24, 4 X 4 MM, 0.80 MM PITCH, MO-220WGGD-2, TQFN-24
MAX7312ATG-T	MAXIM	获取价格	Parallel I/O Port, 16-Bit, 16 I/O, BICMOS, 4 X 4 MM, 0.80 MM PITCH, MO-220WGGD-2, TQFN-24
MAX7312AUG	MAXIM	获取价格	2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection
MAX7312AUG	ROCHESTER	获取价格	16 I/O, PIA-GENERAL PURPOSE, PDSO24, 4.40 MM, MO-153AD, TSSOP-24
MAX7312AUG+	MAXIM	获取价格	Parallel I/O Port, 16-Bit, 16 I/O, BICMOS, PDSO24, 4.40 MM, MO-153, TSSOP-24
MAX7312AUG+T	MAXIM	获取价格	Parallel I/O Port, 16-Bit, 16 I/O, BICMOS, PDSO24, 4.40 MM, MO-153AD, TSSOP-24

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