ALS-PDIC17-79NB-TR8_15 Datasheet, PDF (5/19 Pages) Everlight Electronics Co., Ltd – Digital Ambient Light Sensor

DATASHEET
SMD  I²C Digital Ambient Light Sensor
ALS-PDIC17-79NB/TR8
AC Characteristics of I²C Signals in Standard and Fast Mode
Parameter
Symbol
I²C clock frequency
Hold time (repeated) START
condition. After this period, the first
clock pulse is generated.
Low period of I²C clock
High period of I²C clock
Set-up time for a repeated START
condition
Data hold time for I²C-bus devices
Data set-up time
Rise time of both I²C data and
clock signal’s
Fall time of both I²C data and clock
signal’s
Set-up time for STOP condition
Bus free time between STOP and
START condition
Capacitive load for each bus line
f_SCL
t_HD;STA
t_LOW
t_HIGH
t_SU;STA
t_HD;DAT
t_SU;DAT
tr
tf
t_SU;STO
t_BUF
Cb
Standard Mode
Min.
Max.
0
100
4.0
4.7
4.0
4.7
0
3.45
250
-
-
1000
-
300
4.0
-
4.7
-
-
400
Fast Mode
Min.
Max
0
400
0.6
-
1.3
0.6
0.6
0
0.9
100
-
5
300
0.1
300
0.6
-
1.3
-
-
400
Unit
KHz
us
us
us
us
us
ns
ns
ns
us
us
pF
Figure 2 I²C Timing Diagram
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