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C24 Hardware Interface Manual
Version 0.3
2.2 Power
Supply
The Module power supply must be a single external DC voltage source of 3.0V to 4.4V.
TABLE 2 – Power supply signals
Pin (s)
Signal Name
Description
1-4
GND
Main ground connection for the module.
DC supply input for the module.
5-8
VCC
V
IN
= 3.0 V to 4.4 V
I
MAX
≤
600 mA at TX/RX
2.2.1 Power
Consumption
The following table specifies typical current consumption ratings of the module in various operating
modes. The current ratings refer to the overall current consumption through the VCC supply.
TABLE 3 – Current ratings (VCC = 3.6 V)
Parameter Description
Conditions
Min Typ Max Unit
I
OFF
RTC mode
30
uA
I
IDLE
Idle mode
Registered
20
mA
- SCI2
- TBR = 30 minutes
Legend
I
SLEEP
Low power mode
2.5
mA
• SCI2: Paging slots every 5.12 seconds
• TBR: Timer Base Registration
I
MAX
Max TX/RX current
600
mA
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