参数资料
型号: PCA9539RPW,112
厂商: NXP Semiconductors
文件页数: 4/37页
文件大小: 0K
描述: IC I/O EXPANDER I2C 16B 24TSSOP
标准包装: 1,575
接口: I²C,SM 总线
输入/输出数: 16
中断输出:
频率 - 时钟: 400kHz
电源电压: 2.3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 管件
包括: POR
其它名称: 935286605112
PCA9539RPW
PCA9539RPW-ND
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Produ
ct
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a
sheet
Rev
.6
6
Feb
ruary
2013
12
o
f37
N
X
P
Semi
conductor
s
PCA9539;
PCA9539R
16-
bit
I
2C-b
us
an
d
SM
Bu
s
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Remark: Transfer of data can be stopped at any moment by a STOP condition. When this occurs, data present at the latest acknowledge phase is valid (output mode). It
is assumed that the command byte has previously been set to ‘00’ (read input port register).
Fig 10. Read input port register, scenario 1
1101
A1 A0
1
A
S1
START condition
R/W
acknowledge
from slave
002aad728
A
SCL
SDA
A
read from port 0
P
9
8
7
6
5
4
3
2
1
I0.x
slave address
STOP condition
acknowledge
from master
A
I1.x
acknowledge
from master
A
I0.x
acknowledge
from master
1
I1.x
non acknowledge
from master
data into port 0
read from port 1
data into port 1
INT
6543210
7
6543210
7
6543210
7
6543210
7
INT
tv(INT_N)
trst(INT_N)
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