HCLA Series
Miniature amplified low pressure sensors
I²C Interface Parameters
Parameter
Input high level
Input low level
Output low level
Pull-up resistor
Load capacitance @ SDA
Input capacitance @ SDA/SCL
SCL clock frequency
Bus free time between STOP and START condition
Hold time (repeated) START condition, to first clock pulse
LOW period of SCL
HIGH period of SCL
Setup time repeated START condition
Data hold time
Data setup time
Rise time of both SDA and SCL
Fall time of both SDA and SCL
Setup time for STOP condition
Symbol
Min.
90
0
500
Typ.
Max.
100
10
10
400
10
400
Unit
% of V s
Ω
pF
kHz
C
SD A
C
I2C_IN
F
SC L
t
BUF
t
HD.STA
t
LOW
t
HIGH
t
SU.STA
t
HD.DAT
t
SU.DAT
t
R
t
F
t
SU.STO
100*
1.3
0.8
1.3
0.6
1
0
0.2
µs
0.3
0.3
0.6
* recommended
Note: Sensortechnics recommends communication speeds of at least 100 kHz (max. 400 kHz).
Please contact your nearest Sensortechnics sales office for further information.
t
SU;DAT
SCL
SDA
t
HD;DAT
t
SU;STA
t
HD;STA
t
R
t
F
t
HIGH
SCL
SDA
t
LOW
t
SU;STO
t
BUF
t
HD;STA
Fig. 2:
Timing characteristics
9/15
E / 11629 / A
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