參數(shù)資料
型號： MAX7318ATG+
廠商： Maxim Integrated Products
文件頁數(shù)： 18/19頁
文件大?。?/td> 0K
描述： IC I/O EXPANDER I2C 16B 24TQFN
產品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 75
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-WFQFN 裸露焊盤
供應商設備封裝： 24-TQFN-EP（4x4）
包裝： 管件
包括： POR
MAX7318
generates the acknowledge bit since the MAX7318 is
the recipient. When the MAX7318 is transmitting to the
master, the master generates the acknowledge bit.
Slave Address
The MAX7318 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 MAX7318 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
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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相關代理商/技術參數(shù)
參數(shù)描述
MAX7318ATG+ 功能描述:接口-I/O擴展器 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7318ATG+T 功能描述:接口-I/O擴展器 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7318ATG-T 功能描述:接口-I/O擴展器 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
MAX7318AUG 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
MAX7318AUG+ 功能描述:接口-I/O擴展器 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 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel
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