4. Electrical Characteristics
Table 7: Current Consumption Depending on Work Modes
Work mode
Description
Current consumption (Typ)
Modem-sleep
The CPU is
powered on
240 MHz
30
~
68 mA
160 MHz
27
~
44 mA
Normal speed: 80 MHz
20
~
31 mA
Light-sleep
—
0.8 mA
Deep-sleep
The ULP co-processor is powered on.
150
µ
A
ULP sensor-monitored pattern
100
µ
A @1% duty
RTC timer + RTC memory
10
µ
A
RTC timer only
5
µ
A
Power off
CHIP_PU is set to low level, the chip is powered off.
1
µ
A
Note:
• The current consumption figures in Modem-sleep mode are for cases where the CPU is powered on and the cache
idle.
• When Wi-Fi is enabled, the chip switches between Active and Modem-sleep modes. Therefore, current consump-
tion changes accordingly.
• In Modem-sleep mode, the CPU frequency changes automatically. The frequency depends on the CPU load and
the peripherals used.
• During Deep-sleep, when the ULP co-processor is powered on, peripherals such as GPIO and I²C are able to
operate.
• The ”ULP sensor-monitored pattern” refers to the mode where the ULP coprocessor or the sensor works periodi-
cally. When ADC works with a duty cycle of 1%, the typical current consumption is 100
µ
A.
3.5
Wi-Fi
RF
Characteristics
3.5.1
Wi-Fi
RF
Standards
Table 8: Wi-Fi RF Standards
Name
Description
Center frequency range of operating channel
note
1
2
412 ~ 2462
MHz
Wi-Fi wireless standard
IEEE 802.11b/g/n20/n40
Data rate
20 MHz
11b: 1, 2, 5.5 and 11 Mbps
11g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
11n: MCS0-7, 72.2 Mbps (Max)
40 MHz
11n: MCS0-7, 150 Mbps (Max)
Antenna type
PCB
antenna
Note:
1. Device should operate in the center frequency range allocated by regional regulatory authorities. Target center
frequency range is configurable by software.
2. For the modules that use IPEX antennas, the output impedance is 50
Ω
. For other modules without IPEX antennas,
users do not need to concern about the output impedance.
Espressif Systems
