Data Sheet

5 Module power-on timing requirements
5 Module power-on timing requirements
The Z2 chip has requirements on the power-on sequence. During the power-on
process, the system starts when the RST pin reaches 1.62V. At this time, the VCC
needs to reach more than 1.8V within 10ms. Because the RST pin has the RC link,
the VCC of the bare module is much more than 1.8V when the RST reaches 1.62V.
In some cases that the large capacitance in the power driver connected to the Z2
chip module charges or discharges, if the module voltage is not fully discharged
14 / 29