參數(shù)資料
型號： 935285129112
廠商： NXP SEMICONDUCTORS
元件分類： 顯示驅(qū)動(dòng)器
英文描述： LED DISPLAY DRIVER, PDSO28
封裝： 4.40 MM, PLASTIC, MO-153, SOT361-1, TSSOP-28
文件頁數(shù)： 26/54頁
文件大?。?/td> 410K
代理商： 935285129112
PCA9685_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 16 July 2009
32 of 50
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
Fig 22. Read all registers using the Auto-Increment feature; AI initially clear
A5 A4 A3 A2 A1 A0
0
A
S
1
slave address
START condition
R/W
002aad188
MODE1 register
0
control register = MODE1 register
A
acknowledge
from slave
A
acknowledge
from slave
P
STOP
condition
(cont.)
data from MODE1
A
acknowledge
from master
data from LED15_OFF_H register
A
not acknowledge
from master
acknowledge
from slave
1
AI bit set
Sr
ReSTART
condition
A5 A4 A3 A2 A1 A0
1
slave address
R/W
A
acknowledge
from slave
data from MODE2
A
acknowledge
from master
Fig 23. Write to ALL_LED_ON and ALL_LED_OFF registers using the Auto-Increment feature; AI initially set
A5 A4 A3 A2 A1 A0
0
A
S
1
slave address
START condition
R/W
002aad189
ALL_LED_ON_L register
1
0
1
0
1
control register =
ALL_LED_ON_L register
A
acknowledge
from slave
A
acknowledge
from slave
P
STOP condition
(cont.)
ALL_LED_ON_H register
A
acknowledge
from slave
ALL_LED_OFF_L register
A
acknowledge
from slave
ALL_LED_OFF_H register
A
acknowledge
from slave
acknowledge
from slave
Fig 24. Write to ALL_LED_OFF_H to turn OFF all PWMs
A5 A4 A3 A2 A1 A0
0
A
S
1
slave address
START condition
R/W
002aad190
1
0
1
control register =
ALL_LED_OFF_H register
A
acknowledge
from slave
P
STOP
condition
acknowledge
from slave
0
1
X
0
ALL_LED_OFF_H register
A
acknowledge
from slave
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