BDE-BW3551 module series is a 2.4GHz and 5GHz dual-band Wi-Fi 6 and Bluetooth 5.4 Low Energy wireless MCU module based on TI's SimpleLink™ Wi-Fi SoC (system-on-chip) CC3551E.

The module series offers the latest standards from Wi-Fi and Bluetooth Low Energy while maintaining compatibility with Wi-Fi 4 (802.11 a/b/g/n) and Wi-Fi 5 (802.11 ac).

The module series is an excellent choice to use in cost-sensitive embedded applications with RTOS software, bringing the efficiency of Wi-Fi 6 to embedded device applications for the Internet of Things (IoT), with a compact PCB footprint and highly optimized bill of materials.

Microcontroller

 

•      Powerful 160MHz Arm®Cortex®-M33 processor with FPU, TrustZone®, and AI acceleration

•      High-speed quad-SPI for XiP flash with on-the-fly decryption

•      Flexible configuration of low-latency TCM (up to 32KB) and Cache (32KB or 64KB) for improved code execution performance

•      1.1MB embedded SRAM including 128KB TCM for Wi-Fi™, Bluetooth® Low Energy, networking, and ap-plication data

 

Peripherals

 

•      Up to 27 I/Os with flexible multiplexing options

•      8x general-purpose timers and pulse-width modulation (PWM)

•      3x universal asynchronous receiver-transmitter (UART)

•      2x Serial Peripheral Interface (SPI)

•      2x inter-integrated circuit (I2C)

•      Inter-IC sound (I2S)

•      Pulse density modulation (PDM)

•      Secure digital and multimedia card (SD/MMC)

•      Secure digital input output (SDIO) 2.0

•      Controller area network (CAN) 2.0

•      8-channel, 12-bit analog-to-digital converter (ADC) System Services

•      Direct memory access (DMA)

•      One-time-programmable memory (OTP)

•      Real-time clock (RTC) and watchdog timer (WDT)

 

Radio

 

•      Wi-Fi 6 (802.11ax)

◦      2.4GHz and 5GHz, single-stream 20MHz channels with application throughput up to 20Mbps (UDP)

◦      Compatible with IEEE 802.11 a/b/g/n/ax

▪      Orthogonal frequency-division multiple access (OFDMA)

▪      Target wake time (TWT)

▪      Trigger frames

▪      Basic service set (BSS) color

◦      Integrated PA for a complete WLAN system with up to 18 dBm output power at 1 DSSS

◦      Role support: STA, softAP , Wi-Fi direct, multi-role AP + STA

◦      Support for personal and enterprise Wi-Fi security: WPA and WPA2 PSK, WPA2 Enterprise, WPA3 personal or enterprise

◦      Wi-Fi TX Power:

▪      18 dBm at 1DSSS

▪      16 dBm at 54OFDM

◦      Wi-Fi RX Sensitivity:

▪      –96 dBm at 1DSSS

▪      –74 dBm at 54OFDM

•      Bluetooth® Low Energy

◦      Bluetooth Low Energy 5.4 certified stack

◦      Supports long-range and high-speed PHYs (up to 2Mbps)

 

Security Features

 

•      ARM TrustZone

•      Hardware security module supporting all of the following:

 

◦      ECC, RSA, AES, SHA2/3, MD5, CRC 16/32, and TRNG

◦      Secure key storage

•      Initial secure programming

•      Secure boot

•      Software IP and cloning protection

•      Debug security through JTAG and debug port lock

•      OTP with the ability to program root-of-trust public key

•      Secure over-the-air (OTA) updates

•      Anti-rollback protection Clock Source

•      Fast clock: 52MHz XTAL

•      Slow clock: Internal low-frequency oscillator, external 32.768kHz XTAL, or external slow clock source Power Management

•      Support for 3.3V and 1.8V on multiple I/O domains

•      Supplies:

◦      VDD_3V3: 3.3V

◦      VDD_1V8: 1.8V

◦      VDD_SF: 1.8V

◦      VIO1: 1.8/3.3V

◦      VIO2: 1.8/3.3V (Must be set to 1.8V for PSRAM variants)

 

Key Benefits

 

•      Complete software development kit with open-source TCP/IP and TLS stacks

•      Operating temperature: –40°C to +85°C

•      Support for 3-wire PTA coexistence interface for use with external 2.4GHz radios (for example Thread or Zigbee®)

•      Antenna selection capability

 

Memory

 

•      Up to 8MB XiP flash Antenna Options

•      Integrated PCB trace antenna

•      U.FL connector

•      ANT pin

 

Package

 

•      LGA-73, 14mm x 17.6mm x 2mm, PCB trace antenna variants

•      LGA-73, 14mm x 16mm x 2mm, U.FL connector variants

•      LGA-73, 14mm x 12.6mm x 2mm, ANT pin variants 

Certifications - In-progress

•      Bluetooth SIG

•      FCC

•      IC

•      MIC

•      CE-RED