BDE-BW3551 is a 2.4-GHz & 5-GHz dual-band Wi-Fi 6 and BLE Combo wireless MCU module series based on TI’s SimpleLink™ Wi-Fi System-on-Chip CC3551. This module series is ideal for cost-sensitive embedded applications with RTOS software, where the peak application throughput requirement is a maximum of 20 Mbps. The BDE-BW3551 module series is an excellent choice for bringing the efficiency of Wi-Fi 6 to embedded device applications for the Internet of Things (IoT), featuring a small PCB footprint and a highly optimized bill of materials for lower costs. Additionally, the module is backward compatible with Wi-Fi 4 (802.11 b/g/n) and Wi-Fi 5 (802.11 ac).

Key Features

Microcontroller

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

    High-speed Quad-SPI 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

    Over 1MB embedded SRAM including 128KB TCM for Wi-Fi, BLE, networking, and application data

    Support for additional external PSRAM

Peripherals

    Up to 29 I/Os with flexible multiplexing options

    8 x General-Purpose Timers / Pulse-Width Modulation (PWM)

    2 x Universal Asynchronous Receiver-Transmitter (UART)

    2 x Serial Peripheral Interface (SPI)

    2 x Inter-Integrated Circuit (I2C)

    Inter-IC Sound (I2S)

    Pulse Density Modulation (PDM)

    Secure Digital / 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

    2.4GHz & 5GHz dual-band Wi-Fi 6 (802.11ax)

    Single-stream 20-MHz channels with application throughput up to 20Mbps (UDP)

    Compatible with IEEE 802.11 b/g/n/ax

    Orthogonal Frequency-Division Multiple Access (OFDMA)

    Target Wake Time (TWT)

    Trigger Frames

    Basic Service Set (BSS) Color

    Integrated PA for complete WLAN Solution with up to 18 dBm output power at 1 DSSS

    Role support: STA, softAP with up to 4 stations, Wi-Fi Direct, Multi-role AP + STA

    Support for Personal and Enterprise Wi-Fi Security: WPA / WPA2 PSK, WPA2 Enterprise, WPA3 Personal or Enterprise

    Wi-Fi TX Power

    18 dBm at 1 DSSS

    16 dBm at 54 OFDM

    Wi-Fi RX Sensitivity

    -96 dBm at 1 DSSS

    -73 dBm at 54 OFDM

    Bluetooth® Low Energy

    Bluetooth low energy 5.4 certified stack

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

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 ability to program root-of-trust public key

    Secure Over-the-Air (OTA) updates

    Anti-rollback protection

Other Features

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

    Antenna selection capability

    Operating temperature: -40°C to +85°C

    Power management

    VDD_3V3: 3 V – 3.6 V

    VDD_1V8: 1.62V – 1.98V

    VDD_SF: 1.8V / 3.3V

    VDD_VIO1: 1.8V / 3.3V

    VDD_VIO2: 1.8V / 3.3V

    Clock source

    On-board 52 MHz XTAL fast clock

    External 32.768-kHz oscillator

    Antenna options

    U.FL connector for external antenna

    Integrated PCB trace antenna

    ANT pin for external antenna

    Package

    LGA-68, 14mm x 14mm x 2mm

    LGA-68, 14mm x 19mm x 2mm

    LGA-68, 14mm x 19mm x 2mm

    Regulatory compliance (Planed)

    FCC ID: 2ABRU-BW355

    IC: 25657- BW355

    CE-RED

    MIC/TELEC

 

 

Applications

 

    Grid Infrastructure

    Electricity Meter

    String Inverter

    Micro Inverter

    Energy Storage Power Conversion System (PCS)

    EV Charging Infrastructure

    Building and Home Automation

    HVAC Controller

    HVAC Gateway

    Thermostat

    Building Security Gateway

    Garage Door System

    IP Network Camera/ Video Doorbell

    Wireless Security Camera

    Appliances

    Refrigerator & Freezer

    Oven

    Washer & Dryer

    Residential Water Heater & Heating System

    Air Purifier & Humidifier

    Coffee Machine

    Air Conditioner Indoor Unit

    Vacuum Robot

    Robotic Lawn Mower

    Medical

    Infusion Pump

    Electronic Hospital Bed & Bed Control

    Multiparameter Patient Monitor

    Blood Pressure Monitor

    CPAP Machine

    Telehealth Systems

    Ultrasound Scanner

    Ultrasound Smart Probe

    Electric Toothbrush

    Retail Automation and Payment

    Printers

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