- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367809 > PCA9555 (NXP Semiconductors N.V.) 16-bit I2C and SMBus I/O port with interrupt PDF資料下載
參數(shù)資料
| 型號： | PCA9555 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 16-bit I2C and SMBus I/O port with interrupt |
| 中文描述： | 16位I2C和SMBus I / O端口的中斷 |
| 文件頁數(shù)： | 9/22頁 |
| 文件大?。?/td> | 185K |
| 代理商： | PCA9555 |
P
P
P
1
2
C
2
1
0
A2
A1 A0
0
0
0
0
A2
A1
A0
0
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
SU01463
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
0
1
0
0
A2
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
SU01464
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9556 | Octal SMBus Registered Interface(八位SM總線寄存接口) |
| PCA9556PW | Octal SMBus Registered Interface |
| PCA9557 | 8-bit I2C and SMBus I/0 port with reset |
| PCA9558 | 8-bit I2C and SMBus I/O port with 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM and 2 k bit EEPROM |
| PCA9559 | 5-bit multiplexed/1-bit latched 6-bit I I C EEPROM(5位多路的/1位鎖存的6位IIC EEPROM) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9555_08 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:REMOTE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS |
| PCA9555_10 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:REMOTE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS |
| PCA9555_13 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:16-bit I2C-bus and SMBus I/O port with interrupt |
| PCA9555A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Smart, simple solutions for the 12 most common design concerns |
| PCA9555AHF | 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 weak pull-up |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。