Q2406
| Model | Q2406 |
| Description | SELF CONTAINED E GSM/GPRS 900/1800 OR 850/1900 BI BAND MODULE |
| PDF file | Total 81 pages (File size: 909K) |
| Chip Manufacturer | ETC |
WM_PRJ_Q2400_PTS_002 - 002
24th January 2003
2.18
VCC output
This output can be used to power some external functions. VCC has to be used
as a digital power supply. This power supply is available when the module is
on.
Pin description
Signal
VCC
Pin number
40
I/O
O
I/O type
Supply
Description
Digital supply
Operating conditions
Parameter
Ouput voltage
Output Current
Condition
I = 10mA
Min
2.74
Max
2.86
10
Unit
V
mA
2.19
VCC_RTC (Real Time Clock Supply)
2.19.1 Interface description
This pin is used as a back-up power supply for the internal Real Time Clock.
The RTC is supported by the module when powered on but a back-up power
supply is needed to save date and hour when the module is switched off.
If the RTC is not used this pin can be left open.
Pin description
Signal
VCC_RTC
Pin number
56
I/O
I/O
I/O type
Supply
Description
RTC Back-up supply
Operating conditions
Parameter
Input voltage
Input Current
Input Current
Output voltage
Output current
VCC=0V; t° =
VCC_RTC=2.5V
25°C
Condition
Min
2
Max
2.75
3
10
2.4
2.75
2
Unit
V
µA
µA
V
mA
VCC=0V; t°:-20°C / 55°C
VCC_RTC=2.5V
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