參數(shù)資料
型號： 935285129118
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)： 25/54頁
文件大?。?/td> 410K
代理商： 935285129118
PCA9685_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 16 July 2009
31 of 50
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
9.
Bus transactions
(1) See Table 3 for register denition.
Fig 20. Write to a specic register
A5 A4 A3 A2 A1 A0
0
A
S
1
slave address
START condition
R/W
acknowledge
from slave
002aac829
data for register D[7:0](1)
D6 D5 D4 D3 D2 D1 D0
D7
control register
A
acknowledge
from slave
A
acknowledge
from slave
P
STOP
condition
Fig 21. Write to 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
002aad187
MODE1 register
0
control register = MODE1 register
A
acknowledge
from slave
A
acknowledge
from slave
P
STOP
condition
(cont.)
MODE2 register
A
acknowledge
from slave
LED15_OFF_L register
A
acknowledge
from slave
LED15_OFF_H register
A
acknowledge
from slave
acknowledge
from slave
1
AI bit set
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