ATWINC1500_14 Datasheet, PDF (8/26 Pages) ATMEL Corporation – Single Chip IEEE 802.11 b/g/n Network Controller SOC

5.2 Power Consumption
5.2.1
Description of Device States
Atmel WINC1500 device has several Device States:
 ON_Transmit
 ON_Receive
 ON_Doze
 SLEEP
 Power_Off
̶ Device is actively transmitting an 802.11 signal
̶ Device is actively receiving an 802.11 signal
̶ Device is on but is neither transmitting nor receiving
̶ Device is asleep with 1.2V supply off
̶ Device is powered off; VDD_1P3 and VDDIO are off
5.2.2
Controlling the Device States
Table 5-1 shows how to switch between the device states using the following:
 CHI_EN
 VDDIO
̶ Device pin (pin #23) used to enable DC/DC Converter
̶ I/O supply voltage from external supply
Table 5-1. WINC1500 Device State Control
Device State
ON_Transmit
ON_Receive
ON_Doze
SLEEP
CHIP_EN
VDDIO
VDDIO
VDDIO
GND
VDDIO
On
On
On
On
Remark
Transmitting
Receiving
Idle⁽¹⁾
Power Consumption
172mA @3.3V (18dBm)
149mA @2.5V (14dBm)
117mA @2.0V (10dBm)
70mA @3.3V (-90dBm)
65mA @3.3V (-87dBm)
1mA
< 4µA
Note:
1. The device is Idle in ON_Doze state during Passive Scan waiting for the Beacon Signal
5.2.3
Restrictions for Power_Off State
When the Atmel WINC1500 is in the Device State Power_Off, there is no power supplied to the device, i.e., the
DC/DC Converter output and VDDIO are both off (at ground potential). In this case, a voltage cannot be applied
to the WINC1500 pins because each pin contains an ESD diode from the pin to supply. This diode will turn on
when voltage higher than one diode-drop is supplied to the pin.
If a voltage must be applied to the signal pads while the chip is in a low power state, the VDDIO supply must be
on, so the SLEEP state must be used.
Similarly, to prevent the pin-to-ground diode from turning on, do not apply a voltage that is more than one diode-
drop below ground to any pin.
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Atmel ATWILC1500A [PRELIMINARY DATASHEET]
Atmel-42353A-WINC1500-SmartConnect-Datasheet_092014