 English |
|
|
|
|
|
|
|
| PCU9654 Datasheet, PDF (27/36 Pages) NXP Semiconductors – 8-bit UFm 5 MHz I2C-bus 100 mA 40 V LED driver | |||
| |||
| ◁ |
NXP Semiconductors
PCU9654
8-bit UFm 5 MHz I2C-bus 100 mA 40 V LED driver
USDA
tBUF
tr
tf
tLOW
USCL
tHD;STA
P
S
tHD;DAT
tHIGH
tSU;DAT
Fig 17. Definition of timing
tHD;STA
tSU;STA
Sr
tSP
tSU;STO
0.7 Ã VDD
0.3 Ã VDD
0.7 Ã VDD
0.3 Ã VDD
P
002aag331
protocol
START
condition
(S)
bit 7
MSB
bit 6
tSU;STA
USCL
tBUF
USDA
tLOW tHIGH
1 / fUSCL
tr
tf
bit 1
(D1)
tHD;STA
tSU;DAT tHD;DAT
Rise and fall times refer to VIL and VIH.
Fig 18. UFm I2C-bus timing and output timing diagram
bit 0
(D0)
(always set
to 1
by master)
STOP
condition
(P)
9th
clock
td(USCL-Q)
output data
LED[0:7]
output data
LED[0:7]
0.7 Ã VDD
0.3 Ã VDD
tSU;STO
0.7 Ã VDD
0.3 Ã VDD
td(USDA-Q)
002aag615
OE
output data
tPLH
Fig 19. Output propagation delay
tPHL
002aag604
PCU9654
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 â 2 July 2012
© NXP B.V. 2012. All rights reserved.
27 of 36
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese