參數(shù)資料
型號: 935289802118
廠商: NXP SEMICONDUCTORS
元件分類: 顯示驅(qū)動器
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): 36/54頁
文件大?。?/td> 410K
代理商: 935289802118
PCA9685_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 16 July 2009
41 of 50
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
Fig 31. Denition of timing
tSP
tBUF
tHD;STA
P
S
tLOW
tr
tHD;DAT
tf
tHIGH
tSU;DAT
tSU;STA
Sr
tHD;STA
tSU;STO
SDA
SCL
002aaa986
Rise and fall times refer to VIL and VIH.
Fig 32. I2C-bus timing diagram
Fig 33. tPLZ, tPZL and tPHZ, tPZH times
SCL
SDA
tHD;STA
tSU;DAT
tHD;DAT
tf
tBUF
tSU;STA
tLOW
tHIGH
tVD;ACK
002aab285
tSU;STO
protocol
START
condition
(S)
bit 7
MSB
(A7)
bit 6
(A6)
bit 1
(D1)
bit 0
(D0)
1 / fSCL
tr
tVD;DAT
acknowledge
(A)
STOP
condition
(P)
002aad810
tPLZ
tPHZ
outputs
disabled
outputs
enabled
outputs
enabled
LEDn output
LOW-to-OFF
OFF-to-LOW
LEDn output
HIGH-to-OFF
OFF-to-HIGH
OE input
VI
VOL
VOH
VDD
VM
VX
VY
VM
VSS
tPZL
tPZH
VM
VSS
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