PCA9550 Philips Semiconductors, PCA9550 Datasheet - Page 13

• Manufacturer Part Number: PCA9550
• Description: 2-bit I2C LED driver with programmable blink rates
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2003 May 02
2-bit I
SCL
SDA
RESET
LEDx
SDA
SCL
2
C LED driver with programmable blink rates
P
50%
t
BUF
t
REC
S
START
30%
t
HD;STA
t
LOW
t
t
R
HD;DAT
Figure 17. Definition of RESET timing
Figure 18. Definition of timing
t
HIGH
t
F
13
t
SU;DAT
Sr
50%
ACK OR READ CYCLE
t
SU;STA
t
t
HD;STA
W
t
t
REC
REC
50%
50%
t
SP
LED OFF
t
SU;STO
PCA9550
SW01087
SU00645
P
Product data