Data Sheet

1 PRODUCT OVERVIEW
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1 Product overview
CB3L is built in with a 32-bit MCU whose running speed can be up to 120 MHz, a 2-MB
flash memory, and a 256-KB RAM, so as to support the Tuya cloud connection. The
MCU instructions specially extended for signal processing can effectively implement
audio encoding and decoding. Besides, it has rich peripherals, such as PWM, UART
and SPI. There are six 32-bit PWM outputs, making the chip very suitable for high-
quality LED control.
1.1 Features
• Builtinwiththelow-power 32-bit CPU,whichcanalsofunctionasanapplication
processor
• The clock rate: 120 MHz
• Working voltage: 3.0 to 3.6V
• Peripherals: 7 GPIOs, 1 UART, and 1 ADC
• Wi-Fi connectivity
– 802.11 b/g/n
–
Channels 1 to 14@2.4 GHz
–
Support WEP, WPA/WPA2, and WPA/WPA2 PSK (AES) security modes
–
Up to +16 dBm output power in 802.11b mode
– Support STA/AP/STA+AP working mode
– Support Wi-Fi and hotspot network configuration manners for Android and
iOS devices
–
Onboard PCB antenna with a gain of 2.4 dBi
–
Working temperature: -40℃ to 105℃
• Bluetooth connectivity
– Support the Bluetooth LE V5.1
–
Support the transmit power of 6 dBm in Bluetooth mode
– Complete Bluetooth coexistence interface
–
Onboard PCB antenna with a gain of 2.4 dBi