SNAS778D June 2021 – July 2024 HDC3020 , HDC3021 , HDC3022
PRODUCTION DATA
Within Auto Measurement Mode, the HDC302x maintains a history of the maximum and minimum measurement for temperature and relative humidity (described as variables MIN T, MAX T, MIN RH, and MAX RH). Table 7-8 summarizes the status of MIN T, MAX T, MIN RH, and MAX RH after device reset.
HDC302x Configuration | MIN T | MAX T | MIN RH | MAX RH |
---|---|---|---|---|
After reset | 130°C | -45°C | 100% | 0% |
Within Auto Measurement Mode | Monitored and Latched When Appropriate |
The values of MIN T, MAX T, MIN RH, and MAX RH are updated only in auto measurement mode. The values can be read out in auto measurement mode and during sleep mode. These values can be reset to the starting value only with a reset event. Figure 7-14 illustrates the I2C sequence for measurement readout of MIN T, MAX T, MIN RH, and MAX RH.