Data Sheet

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HTE501
LIST OF FIGURES
Figure 1: DFN8 pin configuration....................................................................................................................................5
Figure 2: Typical application schematic ..........................................................................................................................5
Figure 3: Humidity measurement accuracy @ 25 °C (incl. hysteresis) ..........................................................................6
Figure 4: Temperature sensor accuracy .........................................................................................................................7
Figure 5: Operating conditions .......................................................................................................................................7
Figure 6: Measurement duration ..................................................................................................................................10
Figure 7: Sensor behaviour at power-up ......................................................................................................................11
Figure 8: Single shot measurement..............................................................................................................................13
Figure 9: Periodic measurement ..................................................................................................................................14
Figure 10: Start single-shot measurement readout ......................................................................................................14
Figure 11: Clock stretching during measurement .........................................................................................................14
Figure 12: Poll for meauring values until ACK ..............................................................................................................15
Figure 13: Measured value readout..............................................................................................................................15
Figure 14: Periodic measurement commands ..............................................................................................................15
Figure 15: Fetch command...........................................................................................................................................16
Figure 16: Fetch command...........................................................................................................................................16
Figure 17: Break command ..........................................................................................................................................17
Figure 18: Soft reset .....................................................................................................................................................17
Figure 19: Reset through general call ..........................................................................................................................17
Figure 20: Read out status register ..............................................................................................................................18
Figure 21: Clear status register 1 .................................................................................................................................18
Figure 22: Read Identification.......................................................................................................................................20
Figure 23: Constant current heater commands ............................................................................................................21
Figure 24: Memory access ...........................................................................................................................................21
Figure 25: CRC8 properties..........................................................................................................................................22
Figure 26: Package layout ............................................................................................................................................23
Figure 27: Tape layout ..................................................................................................................................................24
Figure 28: Orientation on the tape ................................................................................................................................24
Figure 29: HTEx laser marking .....................................................................................................................................24
Figure 30: Recommended land pattern and stencil aperture .......................................................................................25