Data Sheet
9/40
Part No. : LTR-559ALS-01
BNS-OD-FC002/A4
Optical Sensor
LTR-559ALS-01
AC Electrical Characteristics
All specifications are at VBus = 1.8V, T
ope
= 25C, unless otherwise noted.
Parameter
Symbol
Min.
Max.
Unit
SCL clock frequency
SCL
f
1
400
kHz
Bus free time between a STOP and START condition
BUF
t
1.3
us
Hold time (repeated) START condition. After this period, the first
clock pulse is generated
STAHD
t
;
0.6
us
LOW period of the SCL clock
LOW
t
1.3
us
HIGH period of the SCL clock
HIGH
t
0.6
us
Set-up time for a repeated START condition
STASU
t
;
0.6
us
Set-up time for STOP condition
STOSU
t
;
0.6
us
Rise time of both SDA and SCL signals
r
t
30
300
ns
Fall time of both SDA and SCL signals
f
t
30
300
ns
Data hold time
DATHD
t
;
0.3
0.9
us
Data setup time
DATSU
t
;
100
ns
Pulse width of spikes which must be suppressed by the input filter
SP
t
0
50
ns
Definition of timing for I
2
C bus