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bk7238's Introduction

BK7238 是一款高度集成的单芯片Wi-Fi802.11n和低功耗蓝牙(BLE)5.2组合解决方案,专为低功耗和小空间应用设计的。

关键特性

  • 160 MHz
  • 288KB SRAM + 1MB/2MB SiP FLASH
  • 802.11b/g/n 1x1协议,支持20/40 MHz带宽和STBC
  • 支持BLE v5.1,-90dB灵敏度和20dBm输出功率
  • QFN40(5x5mm)/QFN32(4x4mm)/QFN20(3x3mm)
  • 工作温度范围 -40 至 +105°C

Wi-Fi

  • IEEE 802.11 b/g/n 1x1,支持 20 MHz
  • 输出功率功率高达 +19 dBm
  • 接收器灵敏度 -99 dBm

BLE

  • BLE 5.2 1 Mbps、2 Mbps 和远距离(125 kbps 和 500 kbps)
  • 蓝牙测向:到达角 (AoA) 和出发角 (AoD)
  • 支持多达16根天线的天线阵列,实现室内精准定位
  • 集成蓝牙 LE/WLAN 共存 (PTA)

功耗

  • 2.7-3.6V VBAT
  • 主动模式 RX:30 毫安
  • 正常待机模式:300 μA
  • 低电压待机模式:75 μA
  • 关断模式:0.5 μA

外设

  • GPIO:QFN32中有19个,QFN20中有9个
  • 1个SPI
  • 2个UART:1个支持闪存下载
  • 1个I2C
  • 1个具有6个通道的通用DMA控制器(GDMA)
  • 6个32位PWM
  • 10位SARADC,最多6个通道
  • 6个通用32位定时器/计数器
  • 1个看门狗定时器
  • 1个实时计数器(RTC)
  • 1个温度传感器
  • 1个真随机数生成器(TRNG)

BK7238

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