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參數(shù)資料
| 型號： | MAX7311AWG+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 16/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC I/O EXPANDER I2C 16B 24SOIC |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1,000 |
| 接口： | I²C，SM 總線 |
| 輸入/輸出數(shù)： | 16 |
| 中斷輸出： | 是 |
| 頻率 - 時鐘： | 400kHz |
| 電源電壓： | 2 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 24-SOIC W |
| 包裝： | 帶卷 (TR) |
| 包括： | POR |
Eight of the MAX7311’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 8-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 MAX7311 address with the R/W bit set to zero, fol-
lowed by the command byte, which determines which
register is accessed. After a restart, the bus master
must then send the MAX7311 address with the R/W bit
set to 1. Data from the register defined by the com-
mand byte is then sent from the MAX7311 to the master
(Figures 8, 9).
MAX7311
2-Wire-Interfaced 16-Bit I/O Port Expander
with Interrupt and Hot-Insertion Protection
_______________________________________________________________________________________
9
S
0 A
A S
1 A
A
NA P
SLAVE ADDRESS
MSB
DATA
LSB
MSB
DATA
LSB
COMMAND BYTE
R/W
ACKNOWLEDGE
FROM SLAVE
ACKNOWLEDGE
FROM SLAVE
ACKNOWLEDGE
FROM SLAVE
MASTER TRANSMITTER BECOMES
MASTER RECEIVER AND SLAVE
RECEIVER BECOMES SLAVE TRANSMITTER
DATA FROM LOWER OR
UPPER BYTE OF REGISTER
DATA FROM LOWER OR
UPPER BYTE OF REGISTER
TRANSFER OF DATA CAN BE STOPPED AT ANY TIME BY A STOP CONDITION.
Figure 8. Read from Register
12
34
5
6
7
8
9
SCL
SLAVE ADDRESS
PORT 1 DATA
PORT 2 DATA
PORT 1 DATA
PORT 2 DATA
S
1
7777
00
1
P
A
R/W
ACKNOWLEDGE
FROM SLAVE
ACKNOWLEDGE
FROM MASTER
ACKNOWLEDGE
FROM MASTER
ACKNOWLEDGE
FROM MASTER
NONACKNOWLEDGE
FROM MASTER
tIV
tIR
READ FROM PORT 1
READ FROM PORT 2
DATA INTO PORT 1
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
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7311EAG | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX7311EUG | 制造商:Maxim Integrated Products 功能描述: |
| MAX7311EVKIT+ | 功能描述:界面開發(fā)工具 Evaluation Kit for the MAX7311 RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| MAX7312 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection |
| MAX7312AAG | 功能描述:接口-I/O擴展器 RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
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