ASF1400 SENSIRION, ASF1400 Datasheet - Page 9

• 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

ASF1400 Bidirectional Mass Flow Meter
4.3 SPI Push-Mode Detailed Description
The subsequent scope diagrams further describe the ASF1400 device SPI mode data access protocol in PUSH
mode.
1 = SCK
2 = /CS
3 = MOSI
Complete read cycle (three bytes)
First byte
Figure 10: Sample for SPI read cycle of the ASF1400 in Push Mode.
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Serial clock output
Chip select (Push-Mode)
Serial data output
Version 2.1
Close up of one byte
Third byte
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