ASF1400 SENSIRION, ASF1400 Datasheet - Page 8

• Manufacturer Part Number: ASF1400
• Description: SENSOR, MASS FLOW
• Manufacturer: SENSIRION

Specifications of ASF1400

• Pressure Max: 120Pa
• Supply Voltage Range Dc: 7V To 18V
• Accuracy: ± 1%
• Air Mass Flow Range: -400sccm To 400sccm
• Svhc: No SVHC (15-Dec-2010)
• Connection Size: 5mm
• Measuring Range: .015 To 400 Sscm
• Supply Voltage Dc: RoHS Compliant
• Response Time: 142ms
• Rohs Compliant: Yes

/CS
SCK
ASF1400 Bidirectional Mass Flow Meter
Table 5: ASF1400 SPI Characteristics (refer to Figure 9 for a timing diagram).
Figure 9: Timing Diagram of the ASF1400 SPI Interface.
MOSI
www.sensirion.com
Symbol Parameter
Vol
Voh
Vol
Voh
Ioh
Iol
fop
tro
tfo
tro
tfo
tclh
tcll
tcss
tst
Output Low Voltage
Output High Voltage
Output Low Voltage
Output High Voltage
Output High Current
Output Low Current
SCK Frequency
Output Rise Time
Output Fall Time
Output Rise Time
Output Fall Time
Clock High Time
Clock Low Time
/CS Setup Time
Send Time
Conditions
not connected
not connected
Rl=100kΩ
Rl=100kΩ
Vdd = 5V
Vdd = 5V
not connected
not connected
Rl=100kΩ
Rl=100kΩ
Version 2.1
15.0
Min.
0
4.8
0
2.4
Typ.
0.2
4.9
0.2
4.45
-60
0.3
87
40
26
42
30
5.70
5.80
Max.
0.4
5
0.5
27.0
930
Units
kHz
mA
µA
µs
µs
µs
µs
ns
ns
ns
ns
V
V
V
V
8/11