參數(shù)資料
型號: PCA9555PW/DG,118
廠商: NXP Semiconductors
文件頁數(shù): 2/34頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 24TSSOP
標準包裝: 1
接口: I²C,SM 總線
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時鐘: 400kHz
電源電壓: 2.3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 24-TSSOP
包裝: 標準包裝
包括: POR
其它名稱: 568-8253-6
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PCA9555_8
NXP
B
.V
.2009.
All
r
ights
reser
v
ed.
Pr
oduct
data
sheet
Re
v
.08
22
October
2009
10
of
34
NXP
Semiconductor
s
PCA9555
16-bit
I
2C-b
us
and
SMBus
I/O
por
twith
interrupt
Fig 10. Write to Output port registers
1
0
A2 A1 A0
0
A
S0
START condition
R/W
acknowledge
from slave
002aac220
A
SCL
SDA
A
write to port
data out
from port 0
P
tv(Q)
9
8
7
6
5
4
3
2
1
command byte
data to port 0
DATA 0
slave address
0000010
0
STOP
condition
0.0
0.7
acknowledge
from slave
acknowledge
from slave
data to port 1
DATA 1
1.0
1.7
A
data out
from port 1
tv(Q)
DATA VALID
Fig 11. Write to Conguration registers
1
0
A2 A1 A0
0
A
S0
START condition
R/W
acknowledge
from slave
002aac221
A
SCL
SDA
A
P
9
8
7
6
5
4
3
2
1
command byte
data to register
DATA 0
slave address
0000110
0
STOP
condition
LSB
MSB
acknowledge
from slave
acknowledge
from slave
data to register
DATA 1
LSB
MSB
A
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