參數(shù)資料
型號(hào): 935289802118
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(yè)數(shù): 34/54頁(yè)
文件大小: 410K
代理商: 935289802118
PCA9685_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 16 July 2009
4 of 50
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
5.
Block diagram
Remark: Only one LED output shown for clarity.
Fig 1.
Block diagram of PCA9685
A0
A1
A2
A3
A4
A5
002aac824
I2C-BUS
CONTROL
INPUT FILTER
PCA9685
POWER-ON
RESET
SCL
SDA
VDD
VSS
LED
STATE
SELECT
REGISTER
PWM
REGISTER X
BRIGHTNESS
CONTROL
MUX/
CONTROL
OE
'0' – permanently OFF
'1' – permanently ON
VDD
LEDn
PRESCALE
25 MHz
OSCILLATOR
CLOCK
SWITCH
EXTCLK
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