HCE Series
Miniature amplified pressure sensors
SPI - SERIAL PERIPHERAL INTERFACE (cont.)
Interface parameters
Parameter
Input high level
Input low level
Output low level
Pull-up resistor
Load capacitance @ MISO
Input capacitance @ each pin
Signal clock frequency
MISO hold time after SCK sample slope
MOSI setup time before SCK sample slope
/SS setup time before SCK sample slope
C
MISO
C
SPI_IN
f
SCK
t
SPI_HD_MISO
t
SPI_SU_MOSI
t
SPI_SU_SS
100*
200
2/f
CLK
10
ns
500
400
10
640
Symbol
Min.
90
0
Typ.
Max.
100
10
10
Unit
% of V s
Ω
pF
kHz
ns
* recommended
Note: Sensortechnics recommends communication speeds of at least 100 kHz (max. 640 kHz).
Please contact your nearest Sensortechnics sales office for further information.
t
SPI_SU_SS
t
SCK
(CPOL=0)
SPI_SU_MOSI
t
SPI_HD_MISO
MOSI
MISO
SS
Fig. 3:
Timing characteristics
E / 11652 / A
6/11
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