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  • WF3235SFA(U) (WiFi Dual-Band MCU Module)
  • Browse 685, Release date: [ 2021-1-10 ]

  • WiFi Dual-Band MCU Module


    WF3235SFA is a 802.11a/b/g/n, 2.4GHz and 5GHz Dual-Band, IPv4 & IPv6, 256KB of RAM (or 1MB of executable flash/256KB of RAM) Low Energy MCU module based on CC3235S(or CC3235SF) SoC. The module offers a unique combination of lower power, integration of all external components including Dual-band chip antenna at a very affordable cost.

    Created for IoT, the WF3235SFA module is a wireless module that integrates two physically separated on-chip MCUs, a CM4 application processor and a network processor.

    WF3235SFA introduces new capabilities that further simplify the connectivity of things to the Internet. The main features of WF3235SFA include:

    •      802.11 a/b/g/n: 2.4 GHz and 5 GHz support

    •      2.4 GHz Coexistence with Bluetooth® low energy radio

    •      Integrated Dual-band chip antenna or UFL connector for external antenna

    •      More concurrent secure sockets, up to 16

    •      Unique device identifier with ability to generate certificate signing request (CSR)

    •      Online certificate status protocol (OCSP)

    •      Wi-Fi Alliance® certified for IoT low power capabilities

    •      Hostless mode for offloading template packet transmissions

    •      Improved fast scan.

    •      Application processor— Arm® Cortex®-M4 MCU with a user-dedicated 256KB of RAM and an optional 1MB

    of executable flash.

    •      Network processor to run all Wi-Fi and Internet logical layers. This ROM-based subsystem completely

    offloads the host MCU and includes an 802.11 a/b/g/n dual-band 2.4-GHz and 5-GHz radio, baseband, and

    MAC with a powerful hardware cryptography engine.

    •      32Mbit SPI serial flash


    Key Features


    - 802.11a/b/g/n: 2.4 GHz and 5 GHz

    - FIPS 140-2 Level 1 validated IC inside

    - Multilayered security features help developers protect identities, data, and software IP

    - Low-power modes for battery-powered applications

    - Coexistence with 2.4-GHz radios

    - Industrial temperature: –40°C to +85°C

    - Antenna: Integrated Dual-band chip antenna or UFL connector

    1.27-mm pitch QFM package for easy assembly and low-cost PCB design

    - Transferrable Wi-Fi Alliance® certification

    - Application microcontroller subsystem:

    - Arm® Cortex®-M4 core at 80 MHz

    - User-dedicated memory:

    - 256KB of RAM

    - 1MB of executable flash 

    - Rich set of peripherals and timers:

    - McASP supports two I2S channels

    - SD, SPI, I2C, UART

    - 8-bit synchronous imager interface

    - 4-channel 12-bit ADCs

    - 4 general-purpose timers (GPT) with 16-bit PWM mode

    - Watchdog timer

    - Up to 27 GPIO pins

    - Debug interfaces: JTAG, cJTAG, SWD

    - Wi-Fi network processor subsystem:

    - Wi-Fi® core:

    - 802.11 a/b/g/n 2.4 GHz and 5 GHz

    - Modes:

    - Access point (AP)

    - Station (STA)

    - Wi-Fi Direct® (only supported on 2.4GHz)

    - Security:

    - WEP

    - WPA™/ WPA2™ PSK

    - WPA2 Enterprise

    - WPA3™ Personal

    - Internet and application protocols:

    - HTTPs server, mDNS, DNS-SD, DHCP

    - IPv4 and IPv6 TCP/IP stack

    - 16 BSD sockets (fully secured TLS v1.2 and SSL 3.0)

    - Built-in power management subsystem:

    - Configurable low-power profiles (always on, intermittently connected, tag)

    - Advanced low-power modes

    - Integrated DC/DC regulators

    - Multilayered security features:

    - Separate execution environments

    - Networking security

    - Device identity and key

    - Hardware accelerator cryptographic engines (AES, DES, SHA/MD5, CRC)

    - File system security (encryption, authentication, access control)

    - Initial secure programming

    - Software tamper detection

    - Secure boot

    - Certificate signing request (CSR)

    - Unique per device key pair

    - Application throughput

    - UDP: 16 Mbps

    - TCP: 13 Mbps

    - Power-Management Subsystem:

    - Integrated DC/DC converters support a wide range of supply voltage:

    - Single wide-voltage supply  

    VBAT: 2.3 V to 3.6 V

    - Advanced low-power modes:

    - Shutdown: 1 μA, Hibernate: 5.5 μA

    - Low-power deep sleep (LPDS):120 μA

    - Idle connected (MCU in LPDS):710 μA

    - RX traffic (MCU active): 59 mA

    - TX traffic (MCU active): 223 mA

    - Wi-Fi TX power

    - 2.4 GHz: 16 dBm at 1 DSSS

    - 5 GHz: 15.1 dBm at 6 OFDM

    - Wi-Fi RX sensitivity

    - 2.4 GHz: –94.5 dBm at 1 DSSS

    - 5 GHz: –89 dBm at 6 OFDM

    - Additional integrated components

    - 40.0-MHz crystal

    - 32.768-kHz crystal (RTC)

    - 32Mbit SPI serial flash

    - RF filters, diplexer and passive components

    - Footprint-compatible QFM package

    - 1.27-mm pitch, 63-pin, 23mm × 20.5mm

    - Module supports the TI SimpleLink Developer's Ecosystem


    Applications


    For Internet of Things applications, such as:

    - Medical and Healthcare

    - Multiparameter Patient Monitor

    - Electrocardiogram (ECG)

    - Electronic Hospital Bed & Bed Control

    - Telehealth Systems

    - Building and Home Automation:

    - HVAC Systems & Thermostat

    - Video Surveillance, Video Doorbells, and Low-Power Camera

    - Building Security Systems and E-locks

    - Appliances

    - Asset Tracking

    - Factory Automation

    - Grid Infrastructure



    Download

    WF3235SFA_Datasheet_EN_V1.0.pdf



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