Datasheet > MAX7312AWG+T

MAX7312AWG+T

更新时间： 2024-02-11 11:10:59

品牌	Logo	应用领域
美信 - MAXIM		外围集成电路
页数	文件大小	规格书
16页	291K
描述
2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection

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技术参数
数据手册

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MAX7312AWG+T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	,
Reach Compliance Code：	compliant	Factory Lead Time：	6 weeks
风险等级：	5.72	峰值回流温度（摄氏度）：	NOT SPECIFIED
处于峰值回流温度下的最长时间：	NOT SPECIFIED	uPs/uCs/外围集成电路类型：	PARALLEL IO PORT, GENERAL PURPOSE
Base Number Matches：	1

MAX7312AWG+T 数据手册

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

with Interrupt and Hot-Insertion Protection

Eight of the MAX7312’s nine registers are configured to

operate as four register pairs: input ports, output ports,

polarity inversion ports, and configuration ports. After

sending 1 byte of data to one register, the next byte is

sent to the other register in the pair. For example, if the

first byte of data is sent to output port 2, then the next

byte of data is stored in output port 1. An unlimited

number of data bytes can be sent in one write transmis-

sion. This allows each ±-bit register to be updated inde-

pendently of the other registers.

Reading Port Registers

To read the device data, the bus master must first send

the MAX7312 address with the R/W bit set to zero, fol-

lowed by the command byte, which determines which

must then send the MAX7312 address with the R/W bit

set to 1. Data from the register defined by the com-

mand byte is then sent from the MAX7312 to the master

(Figures ±, 9).

ACKNOWLEDGE

FROM SLAVE

DATA FROM LOWER OR

UPPER BYTE OF REGISTER

DATA FROM LOWER OR

UPPER BYTE OF REGISTER

SLAVE ADDRESS

COMMAND BYTE

SLAVE ADDRESS

MSB

DATA

LSB

MSB

DATA

LSB NA

ACKNOWLEDGE

FROM SLAVE

R/W

ACKNOWLEDGE

FROM SLAVE

MASTER TRANSMITTER BECOMES

MASTER RECEIVER AND SLAVE

RECEIVER BECOMES SLAVE TRANSMITTER

TRANSFER OF DATA CAN BE STOPPED AT ANY TIME BY A STOP CONDITION.

Figure 8. Read from Register

SCL

SLAVE ADDRESS

R/W

PORT 1 DATA

PORT 2 DATA

PORT 1 DATA

PORT 2 DATA

ACKNOWLEDGE

FROM SLAVE

ACKNOWLEDGE

FROM MASTER

ACKNOWLEDGE

FROM MASTER

ACKNOWLEDGE

FROM MASTER

NONACKNOWLEDGE

FROM MASTER

READ FROM PORT 1

DATA INTO PORT 1

READ FROM PORT 2

DATA INTO PORT 2

INT

TRANSFER OF DATA CAN BE STOPPED ANYTIME BY A STOP CONDITION. WHEN THE

STOP CONDITION OCCURS, DATA PRESENT AT THE LAST ACKNOWLEDGE PHASE IS

VALID (OUTPUT MODE) AND COMMAND BYTE HAS PREVIOUSLY BEEN SET TO REGISTER 00.

Figure 9. Read from Input Registers

_______________________________________________________________________________________

1...6 7 8910 11 12...16

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与MAX7312AWG+T相关器件

型号	品牌	描述	获取价格	数据表
MAX7313	MAXIM	16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection	获取价格
MAX7313	ADI	16端口输入/输出扩展器，带有LED亮度控制和中断，提供热插入保护	获取价格
MAX7313_11	MAXIM	16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection	获取价格
MAX7313AEG	MAXIM	16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection	获取价格
MAX7313AEG+	MAXIM	Parallel I/O Port, 1-Bit, 16 I/O, BICMOS, PDSO24, 0.150 INCH, 0.025 INCH PITCH, MO-137AE,	获取价格
MAX7313AEG+T	MAXIM	Parallel I/O Port, 1-Bit, 16 I/O, BICMOS, PDSO24, 0.150 INCH, 0.025 INCH PITCH, MO-137AE,	获取价格

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