Spec Sheet
ZY8266-12 Spec V1.0
Copyright © 2021 Shenzhen Zhouyuan Technology Co.,
LTD All Rights Reserved
Page 6 of 18
The following power consumption data is based on a 3.3V power supply, ambient temperature
of 25°C, and measured using an internal voltage regulator.
All measurements were made at the antenna interface without a SAW filter.
All emission data were measured in continuous emission mode based on 90% duty cycle.
model
Minimum
Typical
Maximum
unit
Transmission 802.11b, CCK 11Mbps,
POUT=+17dBm
-
170
-
mA
Transmission 802.11g, OFDM 54Mbps,POUT=+15dBm
-
140
-
mA
Transmission 802.11n, MCS7, POUT =+13dBm
-
120
-
mA
Receiving 802.11b, packet length 1024 bytes,
-80dBm
-
50
-
mA
Receiving 802.11g, packet length 1024 bytes,
-70dBm
-
56
-
mA
Receiving 802.11n, packet length 1024 bytes,
-65dBm
-
56
-
mA
Modem-Sleep①
-
20
-
mA
Light-Sleep②
2
-
mA
Deep-Sleep③
20
-
mA
Power Off
0.5
-
mA
instructions：
Modem-sleep is used for applications that require the CPU to work at all times, such
as PWM or I2S applications. If no data is being transmitted while maintaining a Wi-Fi
connection, you can disable the circuit of the Wi-Fi Modem according to the 802.11 standard
(such as U-APSD) to save power. For example, in DTIM3, every 300 ms of sleep, wake up 3 ms
to receive AP Beacon packet, the overall average current is abo ut 20 mA.
Light-sleep is used for applications where the CPU can pause, such as a Wi -Fi switch.
If no data is being transmitted while maintaining a Wi-Fi connection, disable the circuit
of the Wi-Fi Modem and stop the CPU according to the 802.11 standard (such as U-APSD) to
save power. For example, in DTIM3, every 300 ms of sleep, wake up 3 ms to receive the Beacon
packet of AP, the overall average current is about 2 mA.
Deep-sleep is used for applications that do not require constant Wi -Fi connection and
only send data packets for a long time, such as sensors that measure temperature every 100s. For
example, it takes 0.3s to 1s to connect the AP to send data every 300 seconds after waking
up, so the overall average current can be much less than 1 mA. The current value of 20 μA
was measured at 2.5V.
三、 Size of appearance