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Overview

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BK7231N is a highly integrated Wi-Fi 802.11n and dual-mode Bluetooth 5.2 combo solution with complete hardware and software resources required for Wi-Fi and Bluetooth applications. It integrates Bluetooth Basic Rate (BR) and Bluetooth Low Energy (LE) features and is fully compliant with Bluetooth 5.2 specification. It supports concurrent Soft AP + STA mode.

Features

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• IEEE 802.11 b/g/n 1x1 compliant

• 18 dBm TX power at 1 Mbps

• -99 dBm RX sensitivity at 1 Mbps

• 20 MHz bandwidth and STBC

• Operating modes: STA and SoftAP

• Concurrent SoftAP + STA

• MCU at up to 120 MHz

• 256 KB internal data RAM

• 2 MB or 4 MB Flash

• UART or SPI download

• 1 x SDIO

• 1 x SPI

• 2 x I2C

  6 x 32-bit timer and 1 x low-power timer

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

• 1 x ADC of high-speed 10-bit resolution or low-speed 16-bit resolution with an internal decimation filter, up to 6 channels

• 32-byte eFUSE

• 256B–2 KB OTP

• True Random Number Generator (TRNG)

• 26 MHz and 32 kHz clock signal output

• Power-on reset (POR) and watchdog reset