SWRS215D April   2019  – May 2021 CC3235S , CC3235SF

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Functional Block Diagrams
  5. 5 Revision History
  6. 6 Device Comparison
    1. 6.1 Related Products
  7. 7 Terminal Configuration and Functions
    1. 7.1 Pin Diagram
    2. 7.2 Pin Attributes
      1.      11
    3. 7.3 Signal Descriptions
      1.      13
    4. 7.4 Pin Multiplexing
    5. 7.5 Drive Strength and Reset States for Analog and Digital Multiplexed Pins
    6. 7.6 Pad State After Application of Power to Device, Before Reset Release
    7. 7.7 Connections for Unused Pins
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  ESD Ratings
    3. 8.3  Power-On Hours (POH)
    4. 8.4  Recommended Operating Conditions
    5. 8.5  Current Consumption Summary (CC3235S)
      1.      24
      2.      25
    6. 8.6  Current Consumption Summary (CC3235SF)
      1.      27
      2.      28
    7. 8.7  TX Power Control for 2.4 GHz Band
    8. 8.8  TX Power Control for 5 GHz
    9. 8.9  Brownout and Blackout Conditions
    10. 8.10 Electrical Characteristics for GPIO Pins
      1.      33
      2.      34
    11. 8.11 Electrical Characteristics for Pin Internal Pullup and Pulldown
    12. 8.12 WLAN Receiver Characteristics
      1.      37
      2.      38
    13. 8.13 WLAN Transmitter Characteristics
      1.      40
      2.      41
    14. 8.14 WLAN Transmitter Out-of-Band Emissions
      1.      43
      2.      44
    15. 8.15 BLE/2.4 GHz Radio Coexistence and WLAN Coexistence Requirements
    16. 8.16 Thermal Resistance Characteristics for RGK Package
    17. 8.17 Timing and Switching Characteristics
      1. 8.17.1 Power Supply Sequencing
      2. 8.17.2 Device Reset
      3. 8.17.3 Reset Timing
        1. 8.17.3.1 nRESET (32-kHz Crystal)
        2.       52
        3.       53
        4. 8.17.3.2 nRESET (External 32-kHz Clock)
          1.        55
      4. 8.17.4 Wakeup From HIBERNATE Mode
      5. 8.17.5 Clock Specifications
        1. 8.17.5.1 Slow Clock Using Internal Oscillator
        2. 8.17.5.2 Slow Clock Using an External Clock
          1.        60
        3. 8.17.5.3 Fast Clock (Fref) Using an External Crystal
          1.        62
        4. 8.17.5.4 Fast Clock (Fref) Using an External Oscillator
          1.        64
      6. 8.17.6 Peripherals Timing
        1. 8.17.6.1  SPI
          1. 8.17.6.1.1 SPI Master
            1.         68
          2. 8.17.6.1.2 SPI Slave
            1.         70
        2. 8.17.6.2  I2S
          1. 8.17.6.2.1 I2S Transmit Mode
            1.         73
          2. 8.17.6.2.2 I2S Receive Mode
            1.         75
        3. 8.17.6.3  GPIOs
          1. 8.17.6.3.1 GPIO Output Transition Time Parameters (Vsupply = 3.3 V)
            1.         78
          2. 8.17.6.3.2 GPIO Input Transition Time Parameters
            1.         80
        4. 8.17.6.4  I2C
          1.        82
        5. 8.17.6.5  IEEE 1149.1 JTAG
          1.        84
        6. 8.17.6.6  ADC
          1.        86
        7. 8.17.6.7  Camera Parallel Port
          1.        88
        8. 8.17.6.8  UART
        9. 8.17.6.9  SD Host
        10. 8.17.6.10 Timers
  9. 9 Detailed Description
    1. 9.1  Overview
    2. 9.2  Arm® Cortex®-M4 Processor Core Subsystem
    3. 9.3  Wi-Fi® Network Processor Subsystem
      1. 9.3.1 WLAN
      2. 9.3.2 Network Stack
    4. 9.4  Security
    5. 9.5  FIPS 140-2 Level 1 Certification
    6. 9.6  Power-Management Subsystem
    7. 9.7  Low-Power Operating Mode
    8. 9.8  Memory
      1. 9.8.1 External Memory Requirements
      2. 9.8.2 Internal Memory
        1. 9.8.2.1 SRAM
        2. 9.8.2.2 ROM
        3. 9.8.2.3 Flash Memory
        4. 9.8.2.4 Memory Map
    9. 9.9  Restoring Factory Default Configuration
    10. 9.10 Boot Modes
      1. 9.10.1 Boot Mode List
    11. 9.11 Hostless Mode
  10. 10Applications, Implementation, and Layout
    1. 10.1 Application Information
      1. 10.1.1 BLE/2.4 GHz Radio Coexistence
      2. 10.1.2 Antenna Selection
      3. 10.1.3 Typical Application
    2. 10.2 PCB Layout Guidelines
      1. 10.2.1 General PCB Guidelines
      2. 10.2.2 Power Layout and Routing
        1. 10.2.2.1 Design Considerations
      3. 10.2.3 Clock Interface Guidelines
      4. 10.2.4 Digital Input and Output Guidelines
      5. 10.2.5 RF Interface Guidelines
  11. 11Device and Documentation Support
    1. 11.1  Third-Party Products Disclaimer
    2. 11.2  Tools and Software
    3. 11.3  Firmware Updates
    4. 11.4  Device Nomenclature
    5. 11.5  Documentation Support
    6. 11.6  Related Links
    7. 11.7  Support Resources
    8. 11.8  Trademarks
    9. 11.9  Electrostatic Discharge Caution
    10. 11.10 Export Control Notice
    11. 11.11 Glossary
  12. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Packaging Information
      1. 12.1.1 Package Option Addendum
        1. 12.1.1.1 Packaging Information
        2. 12.1.1.2 Tape and Reel Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9.3.1 WLAN

The WLAN features are as follows:

  • 802.11a/b/g/n integrated radio, modem, and MAC supporting WLAN communication as a BSS station, AP, Wi-Fi Direct client, and group owner with CCK and OFDM rates in the 2.4 GHz band (channels 1 through 13), and the 5 GHz 20-MHz BW U-NII bands (U-NII-1, U-NII-2A, U-NII-2C, and U-NII-3).
    Note:

    802.11n is supported only in Wi-Fi station and Wi-Fi direct

  • The automatically calibrated radio with a single-ended 50-Ω interface enables easy connection to the antenna without requiring expertise in radio circuit design.
  • Advanced connection manager with multiple user-configurable profiles stored in serial flash allows automatic fast connection to an access point without user or host intervention.
  • Supports all common Wi-Fi security modes for personal and enterprise networks with on-chip security accelerators, including: WEP, WPA/WPA2 PSK, WPA2 Enterprise (802.1x), WPA3 Personal, and WPA3 Enterprise.
  • Smart provisioning options deeply integrated within the device providing a comprehensive end-to-end solution. With elaborate events notification to the host, enabling the application to control the provisioning decision flow. The wide variety of Wi-Fi provisioning methods include:
    • Access Point with HTTP server
    • WPS - Wi-Fi Protected Setup, supporting both push button and pin code options.
    • SmartConfig™ Technology: TI proprietary, easy to use, one-step, one-time process used to connect a CC3235x-enabled device to the home wireless network.
  • 802.11 transceiver mode allows transmitting and receiving of proprietary data through a socket The 802.11 transceiver mode provides the option to select the working channel, rate, and transmitted power. The receiver mode works with the filtering options.
  • Antenna selection for best connection
  • BLE/2.4 GHz radio coexistence mechanism to avoid interference