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SIM900E Document
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3.5. VRTC Characteristics
Table 5: VRTC characteristics
Symbol Parameter Min Typ Max Unit
V
RTC-IN
VRTC input voltage 2.00 3.00 3.15 V
I
RTC-IN
VRTC input current - 2 - uA
V
RTC-OUT
VRTC output voltage - 3.00 - V
I
RTC-OUT
VRTC output current - 10 - uA
3.6. Current Consumption (VBAT = 3.8V)
Table 6: Current consumption
Symbol Parameter Conditions Value Unit
I
VRTC
VRTC current VBAT disconnects. Backup battery is 3 V 2 uA
I
VBAT
VBAT current
Power down mode 30 uA
Sleep mode
BS-PA-MFRMS=9 1.0
mA BS-PA-MFRMS=5 1.2
BS-PA-MFRMS=2 1.5
Idle mode
GSM 850
22 mA
EGSM 900
DCS 1800
PCS 1900
Voice call
GSM 850
EGSM 900
PCL=5 240
mA
PCL=12 108
PCL=19 81
DCS 1800
PCS 1900
PCL=0 176
PCL=7 94
PCL=15 76
Data mode
GPRS(1Rx,1Tx)
GSM 850
EGSM 900
PCL=5 240
mA PCL=12 110
PCL=19 83
DCS 1800
PCS 1900
PCL=0 170
mA PCL=7 95
PCL=15 80
Data mode
GPRS(4Rx,1Tx) GSM 850
EGSM 900
PCL=5 223
mA PCL=12 150
PCL=19 120