Sierra Wireless WISMO218 - Manual (Page 72)

WA_DEV_W218_PTS_002 Rev 005 Page 72 of 109
Product Technical Specification &
Customer Design Guidelines
VCC_2V8 output
The VCC_2V8 output can only be used for pull-up resistor(s) and as a reference supply.
This voltage supply is available when the WISMO218 is switched on.
Features
Table 29. Electrical Characteristics of the Signals
Parameter Minimum Typ Maximum Unit
VCC_2V8
Output voltage 2.70 2.80 2.95 V
Output Current
Full-power mode - - 50 mA
Sleep mode - - 3 mA
Pin Description
Table 30. VCC_2V8 Pin Descriptions
Signal Pin Number I/O I/O Type Description
VCC_2V8 46 O Supply Digital supply
Application
This digital power supplies are mainly used to:

Pull-up signals such as I/O

Supply the digital transistors driving LEDs

Act as a voltage reference for ADC interface AUX-ADC0