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參數(shù)資料
| 型號(hào)： | PCA9551D |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | LED驅(qū)動(dòng)器 |
| 英文描述： | 8-bit I2C-bus LED driver with programmable blink rates |
| 封裝： | PCA9551BS<SOT629-1 (HVQFN16)|<<http://www.nxp.com/packages/SOT629-1.html<1<Always Pb-free,;PCA9551D<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<we |
| 文件頁(yè)數(shù)： | 2/26頁(yè) |
| 文件大?。?/td> | 155K |
| 代理商： | PCA9551D |
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PCA9551_8
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 08 — 31 July 2008
10 of 26
NXP Semiconductors
PCA9551
8-bit I2C-bus LED driver with programmable blink rates
7.4 Bus transactions
Fig 11. Write to register
0
A
S
slave address
START condition
R/W
acknowledge
from slave
002aac507
0
AI
0
B2B1B0
0
command byte
A
acknowledge
from slave
12345678
SCL
9
SDA
DATA 1
A
write to register
data out from port
tv(Q)
acknowledge
from slave
DATA 1 VALID
data to register
1
0
A2 A1 A0
1
Fig 12. Read from register
1
0
A2 A1 A0
0
A
S1
START condition
R/W
acknowledge
from slave
002aac508
A
acknowledge
from slave
SDA
A
P
acknowledge
from master
data from register
DATA (first byte)
slave address
STOP
condition
S
(repeated)
START condition
(cont.)
1
A
R/W
acknowledge
from slave
slave address
at this moment master-transmitter becomes master-receiver
and slave-receiver becomes slave-transmitter
NA
no acknowledge
from master
data from register
DATA (last byte)
command byte
0
AI
0
B2 B1
0B0
Auto-Increment
register address
if AI = 1
1
0
A2 A1 A0
1
Remark: This gure assumes the command byte has previously been programmed with 00h.
Fig 13. Read Input Port register
1
0
A2 A1 A0
1
A
S1
START condition
R/W
acknowledge
from slave
002aac509
A
acknowledge
from master
SDA
NA
read from
port
data into
port
P
th(D)
data from port
no acknowledge
from master
data from port
DATA 4
slave address
DATA 1
STOP
condition
DATA 2
DATA 3
DATA 4
tsu(D)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9551PW | 8-bit I2C-bus LED driver with programmable blink rates |
| PCA9552BS | 16-bit I2C-bus LED driver with programmable blink rates |
| PCA9552D | 16-bit I2C-bus LED driver with programmable blink rates |
| PCA9552PW | 16-bit I2C-bus LED driver with programmable blink rates |
| PCA9553D | 4-bit I2C-bus LED driver with programmable blink rates |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9551D,112 | 功能描述:LED照明驅(qū)動(dòng)器 I2C LED BLINKER 8BIT 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 |
| PCA9551D,118 | 功能描述:LED照明驅(qū)動(dòng)器 8-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 |
| PCA9551D-T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit I2C-bus LED driver with programmable blink rates |
| PCA9551PW | 功能描述:LED照明驅(qū)動(dòng)器 I2C LED BLINKER 8BIT 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 |
| PCA9551PW,112 | 功能描述:LED照明驅(qū)動(dòng)器 I2C LED BLINKER 8BIT 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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