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參數(shù)資料
| 型號： | PCA9555N |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-bit I2C and SMBus I/O port with interrupt |
| 中文描述： | 16 I/O, PIA-GENERAL PURPOSE, PDIP24 |
| 封裝： | 0.600 INCH, PLASTIC, MO-015, SOT101-1, DIP-24 |
| 文件頁數(shù)： | 9/22頁 |
| 文件大?。?/td> | 185K |
| 代理商： | PCA9555N |
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
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9555N,112 | 功能描述:接口-I/O擴展器 I2C/SMBUS 16BIT GPIO RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)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 |
| PCA9555PW | 功能描述:接口-I/O擴展器 Remote 16-Bit I2C & SMBus I/O Expander RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)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 |
| PCA9555PW,112 | 功能描述:接口-I/O擴展器 I2C/SMBUS 16BIT GPIO RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)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 |
| PCA9555PW,118 | 功能描述:接口-I/O擴展器 16-BIT I2C FM TP GPIO INT PU RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)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 |
| PCA9555PW,118-CUT TAPE | 制造商:NXP 功能描述:PCA9555 Series 16-bit I2C-bus and SMBus I/O port w/ Interrupt - TSSOP - 24 |
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