Datasheet > MAX7311ATG+

MAX7311ATG+

更新时间： 2024-01-14 01:23:07

品牌	Logo	应用领域
恩智浦 - NXP		PC 信息通信管理外围集成电路
页数	文件大小	规格书
16页	376K
描述
IC,I/O PORT,16-BIT,BICMOS,LLCC,24PIN,PLASTIC

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技术参数
数据手册

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MAX7311ATG+ 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	QCCN, LCC24,.16SQ,20	Reach Compliance Code：	unknown
风险等级：	5.78	JESD-30 代码：	S-PQCC-N24
位数：	16	端子数量：	24
最高工作温度：	125 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCN
封装等效代码：	LCC24,.16SQ,20	封装形状：	SQUARE
封装形式：	CHIP CARRIER	电源：	2/5.5 V
认证状态：	Not Qualified	子类别：	Parallel IO Port
表面贴装：	YES	技术：	BICMOS
温度等级：	AUTOMOTIVE	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
Base Number Matches：	1

MAX7311ATG+ 数据手册

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

with Interrupt and Hot-Insertion Protection

I/O0

I/O1

I/O2

I/O3

I/O4

I/O5

I/O6

I/O7

AD0

AD1

AD2

8 BIT

INPUT/OUTPUT

PORT 1

WRITE PULSE

READ PULSE

SMBus

CONTROL

SCL

SDA

INPUT

FILTER

I/O8

I/O9

8 BIT

I/O10

I/O11

I/O12

I/O13

I/O14

I/O15

INPUT/OUTPUT

PORT 2

WRITE PULSE

READ PULSE

V⁺

INT

POWER-ON

RESET

MAX7311

GND

Figure 1. MAX7311 Block Diagram

SDA

BUF

SU, STA

SU, DAT

HD, STA

LOW

SU, STO

HD, DAT

SCL

HIGH

HD, STA

REPEATED START CONDITION

START CONDITION

STOP CONDITION START CONDITION

Figure 2. 2-Wire Serial Interface Timing Diagram

Detailed Description

Serial Interface

The MAX7311 general-purpose input/output (GPIO)

peripheral provides up to 16 I/O ports, controlled

through an I²C-compatible serial interface. The

MAX7311 consists of input port registers, output port

registers, polarity inversion registers, configuration reg-

isters, and a bus-timeout register. Upon power-on, all

I/O lines are set as inputs. Three slave ID address select

pins, AD0, AD1, and AD2, choose one of 64 slave ID

addresses, including the eight addresses supported by

the Phillips PCA9555. Table 1 is the register address

table. Tables 2–6 show detailed register information.

Serial Addressing

The MAX7311 operates as a slave that sends and

receives data through a 2-wire interface. The interface

uses a serial data line (SDA) and a serial clock line

(SCL) to achieve bidirectional communication between

master(s) and slave(s). A master, typically a microcon-

troller, initiates all data transfers to and from the

MAX7311, and generates the SCL clock that synchro-

nizes the data transfer (Figure 2).

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1...3 4 567 8 9...16

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