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參數(shù)資料
| 型號(hào)： | PCA9552 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | GT 10C 10#16 SKT RECP BOX RM |
| 中文描述： | 16位I2C LED與可編程閃爍率司機(jī) |
| 文件頁(yè)數(shù)： | 7/21頁(yè) |
| 文件大小： | 166K |
| 代理商： | PCA9552 |
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Philips Semiconductors
Product data sheet
PCA9552
16-bit I
2
C LED driver with programmable blink rates
2004 Oct 01
7
CHARACTERISTICS OF THE I
2
C-BUS
The I
2
C-bus is for 2-way, 2-line communication between different ICs
or modules. The two lines are a serial data line (SDA) and a serial
clock line (SCL). Both lines must be connected to a positive supply
via a pull-up resistor when connected to the output stages of a device.
Data transfer may be initiated only when the bus is not busy.
Bit transfer
One data bit is transferred during each clock pulse. The data on the
SDA line must remain stable during the HIGH period of the clock
pulse as changes in the data line at this time will be interpreted as
control signals (see Figure 6).
SDA
SCL
SW00363
data line
stable;
data valid
change
of data
allowed
Figure 6. Bit transfer
Start and stop conditions
Both data and clock lines remain HIGH when the bus is not busy. A
HIGH-to-LOW transition of the data line, while the clock is HIGH is
defined as the start condition (S). A LOW-to-HIGH transition of the
data line while the clock is HIGH is defined as the stop condition (P)
(see Figure 7).
System configuration
A device generating a message is a transmitter: a device receiving
is the receiver. The device that controls the message is the master
and the devices which are controlled by the master are the slaves
(see Figure 8).
SDA
SCL
SW00365
S
P
SDA
SCL
START condition
STOP condition
Figure 7. Definition of start and stop conditions
MASTER
TRANSMITTER/
RECEIVER
SLAVE
RECEIVER
SLAVE
TRANSMITTER/
RECEIVER
MASTER
TRANSMITTER
MASTER
TRANSMITTER/
RECEIVER
SDA
SCL
SW00366
I
2
C
MULTIPLEXER
SLAVE
Figure 8. System configuration
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PDF描述 |
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| PCA9554 | 8-bit I2C and SMBus I/O port with interrupt |
| PCA9554A | 8-bit I2C and SMBus I/O port with interrupt |
| PCA9554AN | 8-bit I2C and SMBus I/O port with interrupt |
| PCA9554N | 8-bit I2C and SMBus I/O port with interrupt |
| PCA9559PWDH | 5-bit multiplexed/1-bit latched 6-bit I2C EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9552_06 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:16-bit I2C-bus LED driver with programmable blink rates |
| PCA9552BS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:16-bit I2C-bus LED driver with programmable blink rates |
| PCA9552BS,118 | 功能描述:LED照明驅(qū)動(dòng)器 16-BIT I2C FM OD LED BLK RST RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9552D | 功能描述:LED照明驅(qū)動(dòng)器 I2C LED BLINKR 16BIT RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9552D,112 | 功能描述:LED照明驅(qū)動(dòng)器 I2C LED BLINKR 16BIT RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
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