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PCA9555PWT 参数 Datasheet PDF下载

PCA9555PWT图片预览
型号: PCA9555PWT
PDF下载: 下载PDF文件 查看货源
内容描述: 远程16位I2C和SMBus I / O扩展器,带有中断输出和配置寄存器 [REMOTE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS]
分类和应用: 输出元件
文件页数/大小: 35 页 / 843 K
品牌: TI [ TEXAS INSTRUMENTS ]
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REMOTE 16-BIT I C AND SMBus I/O EXPANDER
WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
2
SCPS131D – AUGUST 2005 – REVISED OCTOBER 2006
Data Output
by Transmitter
NACK
Data Output
by Receiver
ACK
SCL From
Master
S
Start
Condition
1
2
8
9
Clock Pulse for
Acknowledgment
Figure 3. Acknowledgment on I
2
C Bus
Interface Definition
BYTE
I
2
C
slave address
BIT
7 (MSB)
L
P07
P17
6
H
P06
P16
5
L
P05
P15
4
L
P04
P14
3
A2
P03
P13
2
A1
P02
P12
1
A0
P01
P11
0 (LSB)
R/W
P00
P10
P0x I/O data bus
P1x I/O data bus
7