UC864-E Hardware User Guide
1vv0300766a Rev.1 - 31/01/08
11.7RTC Bypass out
The VRTC pin brings out the Real Time Clock supply, which is separate from the rest of the digital part, allowing having only RTC going on when all the other parts of the device are off.
To this power output a backup capacitor can be added in order to increase the RTC autonomy during power off of the battery.
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| VRTC |
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| 1.50 |
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| 3.0 |
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| IRTC |
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| 1.1 |
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| uA |
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NOTE: NO Devices must be powered from this pin.
11.8 VAUX1 power output
A regulated power supply output is provided in order to supply small devices from the module. This output is active when the module is ON and goes OFF when the module is shut down. The operating range characteristics of the supply are:
Operating Range – VAUX1 power supply
Output voltage
Output current
Output bypass capacitor
Min Typical
2.75V 2.85V
Max
2.95V
100mA
2.2μF
NOTE: During RESET and POWER ON the VAUX line is OFF
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved | page 46 of 51 |
