FSC-BW256B Dual-Band Wi-Fi 6 + Dual-Mode BT 5.4 Module

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FSC-BW256B

FSC-BW256B module features a high-performance SoC, leading the industry in Wi-Fi 6 and Bluetooth 5.4 dual-mode technology with the lowest power consumption. It includes a Cortex-M4F CPU operating up to 480 MHz, 992KB SRAM, 896KB ROM, and up to 128Mbits of on-chip SPI flash memory, supporting secondary development. With interfaces like SPI, SDIO, I²C, and UART, it offers versatile control and data transmission capabilities. The module supports IEEE 802.11 b/g/n/a/ac/ax and TCP/IP protocols, making it ideal for integrating WiFi into various systems cost-effectively.

Wi-Fi Features

  • CMOS single-chip fully-integrated RF, Modem and MAC
  • Wi-Fi 6 supports 2.4GHz/5GHz frequency band
  • The highest data rate is 286.8 Mbps with 20/40MHz bandwidth
  • Supports 5MHz/10MHz mode
  • -97dBm RX sensitivity under 11b 1M mode
  • Tx power up to +20 dBm in 11b mode and +18dBm in HT/VHT/HE MCS7 mode
  • Supports STA, AP, Wi-Fi direct mode at the same time
  • Supports STBC and beamforming
  • Supports Wi-Fi 6 TWT
  • Supports two NAVs, buffer report, space reuse, Multi-BSSID, power saving in PPDU
  • Supports LDPC
  • Supports MU-MIMO, OFDMA
  • Supports DCM, medium code, UORA
  • Supports WEP/WPA/WPA2/WPA3-SAE Personal and MFP frequency band

BT 5.4 Features

  • Supports all the mandatory and optional features of Bluetooth 2.1 + EDR/3.0/4.x/5.3/5.4
  • Supports advanced master and slave topologies

CPU Features

  • Integrated Cortex-M4F CPU with MPU and FPU
  • On-chip memory includes 992KB SRAM and 896KB ROM
  • Supports SDIO 3.0, SPI and USB 2.0
  • Integrated hardware crypto accelerator AES/HASH
  • Integrated True Random Number Generator (TRNG)
  • Integrated 32mbits SPI flash
  • Integrated UART, I²S, I²C, PWM, SPI, and SDMMC
  • Integrated watchdog
  • Supports free RTOS

Applications

  • IoT Devices
  • Wireless Devices

Specifications

Wi-Fi BT Modules FSC-BW256B
Wi-Fi
Standard IEEE 802.11 a/b/g/n/ac/ax
Frequency Band 2.412 ~ 2.484 GHz / 4.900 ~ 5.925 GHz
Interface UART, SPI, USB, SDIO
Bluetooth
Standard Bluetooth 5.4 (BR/EDR & LE)
Frequency 2.402 ~ 2.480 GHz
Interface UART
General
Dimension (mm) 13 × 26.9 × 2.2
Operating Temperature -20°C ~ +80°C
Storage Temperature -40°C ~ +85°C
VDD_3V3 3V ~ 3.6V
VDD_IO 1.8V / 3.3V
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