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LMES025U Datasheet(PDF) 9 Page - Sensortechnics GmbH

Part No. LMES025U
Description  digital low differential pressure sensors
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Maker  SENSORTECHNICS [Sensortechnics GmbH]
Homepage  http://www.sensortechnics.com
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LMES025U Datasheet(HTML) 9 Page - Sensortechnics GmbH

 
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E / 11822 / C
LME series – digital low differential pressure sensors
Page 9/12
Subject to change without notice
www.first-sensor.com
contact@first-sensor.com
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
External clock frequency
fECLK
VCKSEL=0
Min.
0.2
MHz
Max.
5
External master clock input low time
fECLKIN LO
tECLK=1/f
ECLK
40
60
%tECLK
External master clock input high time
fECLKIN HI
tECLK=1/f
ECLK
40
60
SCLK setup to falling edge /CS
tSC
30
ns
/CS falling edge to SCLK rising edge setup time
tCSS
30
/CS idle time
tCSI
fCLK=4 MHz
1.5
μs
SCLK falling edge to data valid delay
tDO
CLOAD=15 pF
80
ns
Data valid to SCLK rising edge setup time
tDS
30
Data valid to SCLK rising edge hold time
tDH
30
SCLK high pulse width
tCH
100
SCLK low pulse width
tCL
100
/CS rising edge to SCLK rising edge hold time
tCSH
30
/CS falling edge to output enable
tDV
CLOAD=15 pF
25
/CS rising edge to output disable
tTR
CLOAD=15 pF
25
Maximum output load capacitance
CLOAD
RLOAD=
∞, phase margin >55°
200
pF
Input voltage, logic HIGH
VIH
0.8×V
S
V
S+0.3
V
Input voltage, logic LOW
VIL
0.2×V
S
Output voltage, logic HIGH
VOH
RLOAD=
V
S-0.1
RLOAD=2 k
V
S-0.15
Output voltage, logic LOW
VOL
RLOAD=
0.5
RLOAD=2 k
0.2
SPI – Serial Peripheral Interface (cont.)
Interface specification
Fig. 6: SPI timing diagram
MOSI
MISO
SCLK
/CS
tCSS
tSC
tCH
tCL
tCSH
tCSI
tDS
tDH
tDV
tDO
tTR


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