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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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STMPE812ABJR Scheda tecnica(PDF) 16 Page - STMicroelectronics |
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STMPE812ABJR Scheda tecnica(HTML) 16 Page - STMicroelectronics |
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16 / 53 page  Power modes STMPE812A 16/53 Doc ID 18225 Rev 4 Figure 6. Power modes state diagram On power up reset, device goes to active state. However, as all the functional blocks are clocked off by default, no touch/hotkey activity is possible. If there are no I2C activities, device goes into auto-hibernate mode automatically. The auto-hibernate feature of STMPE812A is always enabled. Whenever there is a period of inactivity, the device enters this mode to reduce power consumption. On detection a touch, correctly addressed I2C data, GPIO activity, the device wakes up immediately. As the device is able to wake up very quickly, there is no loss of touch data. AM04141V1 ACTIVE AUTO - HIBERNATE I2C activity, Touch, Hotkey No activity POR Soft -Reset, Reset input Reset Input STMPE812A is in active mode if PWM is running (about 33 μs) |
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