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參數(shù)資料
| 型號(hào)： | PCA9550 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類(lèi)： | LED驅(qū)動(dòng)器 |
| 英文描述： | 2-bit I2C LED driver with programmable blink rates |
| 中文描述： | 2位I2C LED與可編程閃爍率司機(jī) |
| 文件頁(yè)數(shù)： | 7/17頁(yè) |
| 文件大?。?/td> | 130K |
| 代理商： | PCA9550 |
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Philips Semiconductors
Product data
PCA9550
2-bit I
2
C LED driver with programmable blink rates
2003 May 02
7
Bus transactions
0
A0
1
2
SCL
WRITE TO
REGISTER
DATA OUT
FROM PORT
3
4
5
6
7
8
SDA
S
0
A
A
A
1
1
0
0
0
DATA 1
slave address
data to register
start condition
R/W
acknowledge
from slave
acknowledge
from slave
acknowledge
from slave
t
pv
DATA 1 VALID
SW01014
9
B0
0
0
0
AI
0
B2
B1
command byte
Figure 9. WRITE to register
0
0
0
0
0
0
A0
1
1
0
0
A0
1
1
S
0
A
A
A
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
SW01098
no acknowledge
from master
1
slave address
data from register
data from register
slave address
auto-increment
register address
if AI = 1
0
0
0
AI
0
B2
B1
B0
Figure 10. READ from register
1
1
0
0
0
0
A0
READ FROM
PORT
DATA INTO
PORT
SDA
S
1
A
A
DATA 1
DATA 4
slave address
data from port
data from port
start condition
R/W
acknowledge
from slave
acknowledge
from master
stop
condition
t
ps
DATA 4
DATA 2
P
DATA 3
t
ph
SW01095
no acknowledge
from master
NA
DATA 1
NOTES:
1. This figure assumes the command byte has previously been programmed with 00h.
Figure 11. READ input port register
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9550D | 功能描述:LED照明驅(qū)動(dòng)器 2-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 |
| PCA9550D,112 | 功能描述:LED照明驅(qū)動(dòng)器 2-BIT I2C FM OD LED 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 |
| PCA9550D,118 | 功能描述:LED照明驅(qū)動(dòng)器 2-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 |
| PCA9550D112 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| PCA9550DP | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:2-bit I2C LED driver with programmable blink rates |
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