參數(shù)資料
型號(hào)： MAX7312AWG+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 15/16頁(yè)
文件大?。?/td> 0K
描述： IC I/O EXPANDER I2C 16B 24SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 30
接口： I²C，SM 總線
輸入/輸出數(shù)： 16
中斷輸出： 是
頻率 - 時(shí)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(yīng)商設(shè)備封裝： 24-SOIC W
包裝： 管件
包括： POR
MAX7312
MAX7312 generates the acknowledge bit since the
MAX7312 is the recipient. When the MAX7312 is trans-
mitting to the master, the master generates the
acknowledge bit.
Slave Address
The MAX7312 has a 7-bit-long slave address (Figure 6).
The 8th bit following the 7-bit slave address is the R/W
bit. Set this bit low for a write command and high for a
read command.
Slave address pins AD2, AD1, and AD0 choose 1 of 64
slave ID addresses (Table 7).
Data Bus Transaction
The command byte is the first byte to follow the 8-bit
device slave address during a write transmission
(Table 1, Figure 7). The command byte is used to deter-
mine which of the following registers are written or read.
Writing to Port Registers
Transmit data to the MAX7312 by sending the device
slave address and setting the LSB to a logic zero. The
command byte is sent after the address and deter-
mines which registers receive the data following the
command byte (Figure 7).
2-Wire-Interfaced 16-Bit I/O Port Expander
with Interrupt and Hot-Insertion Protection
8
_______________________________________________________________________________________
SDA
A6
A5
A4
A3
A2
A1
A0
MSB
LSB
ACK
R/W
PROGRAMMABLE
Figure 6. Slave Address
COMMAND BYTE
ADDRESS (HEX)
FUNCTION
PROTOCOL
POWER-UP
DEFAULT
0x00
Input port 1
Read byte
XXXX XXXX
0x01
Input port 2
Read byte
XXXX XXXX
0x02
Output port 1
Read/write byte
1111 1111
0x03
Output port 2
Read/write byte
1111 1111
0x04
Port 1 polarity inversion
Read/write byte
0000 0000
0x05
Port 2 polarity inversion
Read/write byte
0000 0000
0x06
Port 1 configuration
Read/write byte
1111 1111
0x07
Port 2 configuration
Read/write byte
1111 1111
0x08
Timeout register
Read/write byte
0000 0001
0xFF
Factory reserved. (Do not write to this register.)
—
Table 1. Command Byte Register
12
34
5
6
7
8
9
SCL
SDA
S
A
0000001
76543210
A
76543210
A
0A
SLAVE ADDRESS
COMMAND BYTE
PORT 1 DATA
PORT 2 DATA
R/W
ACKNOWLEDGE
FROM SLAVE
ACKNOWLEDGE
FROM SLAVE
START
CONDITION
ACKNOWLEDGE
FROM SLAVE
ACKNOWLEDGE
FROM SLAVE
tPV
WRITE TO PORT
DATA OUT PORT 1
READ FROM PORT 2
Figure 7. Writes to Output Registers Through Write Byte Protocol
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參數(shù)描述
MAX7312AWG+ 功能描述:接口-I/O擴(kuò)展器 16-Bit I/O Port Expander 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7312AWG+T 功能描述:接口-I/O擴(kuò)展器 16-Bit I/O Port Expander 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7312AWG-T 功能描述:接口-I/O擴(kuò)展器 16-Bit I/O Port Expander 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(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7312EVKIT+ 功能描述:界面開發(fā)工具 Evaluation Kit for the MAX7312 RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
MAX7313 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
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