Wi-Fi SOC with processor embedded.


The BK7231U is a 2.4 GHz 802.11n and Bluetooth 4.2 Low Energy (LE) full-featured combo chip with multimedia capabilities. It integrates hardware and software components required for a complete 802.11b/g/n application, supports concurrent SoftAP + STA mode, and integrates a Bluetooth LE 4.2 transceiver and protocol stack. The 120 MHz MCU and embedded 256 KB RAM enable it to support multiple cloud links and make it ideal for image applications.


• IEEE 802.11 b/g/n 1x1 compliant

• Up to 17 dBm output power

• Wideband and narrowband interference detection and alleviation

• 20/40 MHz bandwidth and STBC

• Operating modes: STA and SoftAP

• Concurrent SoftAP + STA

• Bluetooth 4.2 Low Energy with -96 dBm sensitivity and 20 dBm output power

• Classic Bluetooth co-existence (PTA)

• MCU up to 120 MHz

• 256 KB internal data RAM

• QSPI for RAM and Flash extension

• QSPI RAM direct mapping to data RAM space

• Multiplexing program download interface and JTAG interface

• 1x 50 MHz SDIO

• 1x SPI

• 2x I2C

• 2x high-speed UART, one with flow control

• 1x full-speed USB

• 1x I2S

• 6x 32-bit general-purpose timer

• 1x AON timer

• 6x 32-bit PWM with either high-speed clock or low-power clock

• 1x ADC of high-speed 10-bit resolution or low-speed 16-bit resolution with an internal decimation filter

• 8-bit CMOS image sensor DVP

• VGA Motion JPEG hardware encoder and dedicated DMA

• 32-byte eFuse

• True random number generator (TRNG)

• 26 MHz and 32 kHz clock signal output


Smart Home
Industrial control
Image transmission

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Beken Corporation




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