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參數資料
| 型號： | PCA9539 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 16-bit I2C and SMBus, low power I/O port with interrupt and reset |
| 中文描述： | 16位I2C和SMBus，低功率的I / O端口中斷和復位 |
| 文件頁數： | 9/21頁 |
| 文件大小： | 168K |
| 代理商： | PCA9539 |
P
P
P
1
2
C
w
2
1
0
1
A1 A0
1
1
1
0
1
A1
A0
1
1
S
0
A
A
A
COMMAND BYTE
acknowledge
from slave
R/W
acknowledge
from slave
A
P
NA
acknowledge
from slave
acknowledge
from master
S
DATA
DATA
R/W
first byte
at this moment master-transmitter
becomes master-receiver and
slave-receiver becomes
slave-transmitter
last byte
SW02207
no acknowledge
from master
1
slave address
data from upper
or lower byte of
register
data from lower
or upper byte
of register
slave address
MSB
LSB
MSB
LSB
NOTE:
Transfer can be stopped at any time by a STOP condition.
Figure 8.
READ from register
1
2
3
4
5
6
7
8
9
S
1
1
1
0
1
A1 A0
1
A
7
6
5
4
3
2
1
0
A
I0.x
7
6
5
4
3
2
1
0
A
I1.x
7
6
5
4
3
2
1
0
A
I0.x
7
6
5
4
3
2
1
0
1
I1.x
P
R/W
ACKNOWLEDGE
FROM SLAVE
SCL
SDA
ACKNOWLEDGE
FROM MASTER
ACKNOWLEDGE
FROM MASTER
ACKNOWLEDGE
FROM MASTER
NON ACKNOWLEDGE
FROM MASTER
READ FROM PORT 0
DATA INTO PORT 0
READ FROM PORT 1
DATA INTO PORT 1
INT
t
IR
t
IV
SW02208
NOTES:
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 port register).
Figure 9.
READ input port register — scenario 1
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| PCA9545 | 4-channel I2C switch with interrupt logic and reset |
| PCA9545D | 4-channel I2C switch with interrupt logic and reset |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCA9539A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage 16-bit I2C-bus I/O port with interrupt and reset |
| PCA9539AHF | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage 16-bit I2C-bus I/O port with interrupt and reset |
| PCA9539AHF,128 | 功能描述:接口-I/O擴展器 16bit I2C IO Port RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 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 |
| PCA9539APW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage 16-bit I2C-bus I/O port with interrupt and reset |
| PCA9539APW,118 | 功能描述:接口-I/O擴展器 16bit I2C IO Port RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數量: 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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