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參數(shù)資料
| 型號： | PCA9561PW |
| 元件分類： | EEPROM |
| 英文描述： | EEPROM |
| 中文描述： | EEPROM的 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 113K |
| 代理商： | PCA9561PW |
Philips Semiconductors
Product data
PCA9544
4-channel I
2
C multiplexer with interrupt logic
2002 Feb 20
7
Acknowledge
The number of data bytes transferred between the start and the stop conditions from transmitter to receiver is not limited. Each byte of eight bits
is followed by one acknowledge bit. The acknowledge bit is a HIGH level put on the bus by the transmitter whereas the master generates an
extra acknowledge related clock pulse.
A slave receiver which is addressed must generate an acknowledge after the reception of each byte. Also a master must generate an
acknowledge after the reception of each byte that has been clocked out of the slave transmitter. The device that acknowledges has to pull down
the SDA line during the acknowledge clock pulse, so that the SDA line is stable LOW during the HIGH period of the acknowledge related clock
pulse, set-up and hold times must be taken into account.
A master receiver must signal an end of data to the transmitter by not generating an acknowledge on the last byte that has been clocked out of
the slave. In this event, the transmitter must leave the data line HIGH to enable the master to generate a stop condition.
DATA OUTPUT
BY TRANSMITTER
SCL FROM
MASTER
SW00368
DATA OUTPUT
BY RECEIVER
1
2
8
9
S
START condition
clock pulse for
acknowledgement
acknowledge
not acknowledge
Figure 9. Acknowledgement on the I
2
C-bus
SDA
S
0
A
A
1
1
1
0
A2
A1 A0
SLAVE ADDRESS
start condition
R/W
acknowledge
from slave
acknowledge
from slave
B0
X
B1
CONTROL REGISTER
P
SW00802
B2
X
X
X
X
Figure 10. WRITE control register
SDA
S
1
A
NA
1
1
1
0
A2 A1 A0
start condition
R/W
acknowledge
from slave
B1
CONTROL REGISTER
P
stop condition
last byte
SW00378
SLAVE ADDRESS
no acknowledge
from master
B0
INT0
INT1
B2
INT2
X
INT3
Figure 11. READ control register
相關(guān)PDF資料 |
PDF描述 |
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| PCA9544PWDH | 4-channel I2C multiplexer and interrupt controller |
| PCA9544PW | 4-channel I2C multiplexer and interrupt controller |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9561PW,112 | 功能描述:多路器開關(guān) IC QUAD 6-BT MULTIPLEX RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| PCA9561PW,118 | 功能描述:多路器開關(guān) IC QUAD 6BIT MULTIPLEX I2C EEPROM RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| PCA9564BS,118 | 功能描述:I2C 接口集成電路 400KHZ I2C BUS CTRLR RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| PCA9564BS-T | 功能描述:I2C 接口集成電路 400KHZ I2C BUS CTRLR RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| PCA9564D | 功能描述:I2C 接口集成電路 400KHZ I2C BUS CTRLR RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
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