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General features

• ATBM6441 includes Wi-Fi protocol accelerator, low power MCU, multiple interface and Power-Management subsystem

• Support IEEE 802.11 b/g/n and 20MHz bandwidth

• 32bits CPU core with speed up to 160MHz

• Wi-Fi can always be connected to AP with long battery lift and the system can be woken up via network

• Wi-Fi protocol stack runs on chip, and support 20Mbps SDIO video transmission simultaneously

• Built-in 512KB SRAM

• Built-in 16M bits (2M bytes) SPI Flash memory and support firmware encryption protection in flash memory

• Built-in 1024bits eFuse

• Support WEP, WPA, WPA2, WPA3 personal, and AES128, TKIP hardware crypto engine

• Update firmware via UART and SPI, support OTA by host SoC via SDIO interface

• 24.0MHz crystal with internal oscillator

• Flexible RTC clock source from on-chip RC oscillator or external 32.768KHz crystal. To use external 32.768KHz crystal can reduce power consumption in sleep mode.

• 3.3V single power or 3.3V and 1.4V dual power supplies for battery powered product

• 6x6mm2, 48pin QFN package

Peripheral interface

• Two channels 10bit SAR ADCs

• 19 configurable GPIOs

• 19 configurable PWM signal outputs, and output 12 channels PWM signal simultaneously

• Tow I2C interfaces, support master/slave mode

• Tow I2S interfaces, support input/output

• Multiple two wires and four wires UART

• Two standard SPI, support master/slave mode

• SDIO 2.0 compliant interface