ZHCSJ35C September   2016  – May 2021 CC3220R , CC3220S , CC3220SF

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 功能方框图
  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 and Pin Multiplexing
      1. 7.2.1 Pin Descriptions
    3. 7.3 Signal Descriptions
      1. 7.3.1 Signal Descriptions
    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 Chip But 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 (CC3220R, CC3220S)
    6. 8.6  Current Consumption Summary (CC3220SF)
    7. 8.7  TX Power and IBAT versus TX Power Level Settings
    8. 8.8  Brownout and Blackout Conditions
    9. 8.9  Electrical Characteristics (3.3 V, 25°C)
    10. 8.10 WLAN Receiver Characteristics
    11. 8.11 WLAN Transmitter Characteristics
    12. 8.12 WLAN Filter Requirements
      1. 8.12.1 WLAN Filter Requirements
    13. 8.13 Thermal Resistance Characteristics
      1. 8.13.1 Thermal Resistance Characteristics for RGK Package
    14. 8.14 Timing and Switching Characteristics
      1. 8.14.1 Power Supply Sequencing
      2. 8.14.2 Device Reset
      3. 8.14.3 Reset Timing
        1. 8.14.3.1 nRESET (32-kHz Crystal)
        2. 8.14.3.2 First-Time Power-Up and Reset Removal Timing Requirements (32-kHz Crystal)
        3. 8.14.3.3 nRESET (External 32-kHz)
          1. 8.14.3.3.1 First-Time Power-Up and Reset Removal Timing Requirements (External 32-kHz)
      4. 8.14.4 Wakeup From HIBERNATE Mode
      5. 8.14.5 Clock Specifications
        1. 8.14.5.1 Slow Clock Using Internal Oscillator
          1. 8.14.5.1.1 RTC Crystal Requirements
        2. 8.14.5.2 Slow Clock Using an External Clock
          1. 8.14.5.2.1 External RTC Digital Clock Requirements
        3. 8.14.5.3 Fast Clock (Fref) Using an External Crystal
          1. 8.14.5.3.1 WLAN Fast-Clock Crystal Requirements
        4. 8.14.5.4 Fast Clock (Fref) Using an External Oscillator
          1. 8.14.5.4.1 External Fref Clock Requirements (–40°C to +85°C)
      6. 8.14.6 Peripherals Timing
        1. 8.14.6.1  SPI
          1. 8.14.6.1.1 SPI Master
            1. 8.14.6.1.1.1 SPI Master Timing Parameters
          2. 8.14.6.1.2 SPI Slave
            1. 8.14.6.1.2.1 SPI Slave Timing Parameters
        2. 8.14.6.2  I2S
          1. 8.14.6.2.1 I2S Transmit Mode
            1. 8.14.6.2.1.1 I2S Transmit Mode Timing Parameters
          2. 8.14.6.2.2 I2S Receive Mode
            1. 8.14.6.2.2.1 I2S Receive Mode Timing Parameters
        3. 8.14.6.3  GPIOs
          1. 8.14.6.3.1 GPIO Output Transition Time Parameters (Vsupply = 3.3 V)
            1. 8.14.6.3.1.1 GPIO Output Transition Times (Vsupply = 3.3 V) (1) (1)
          2. 8.14.6.3.2 GPIO Output Transition Time Parameters (Vsupply = 1.85 V)
            1. 8.14.6.3.2.1 GPIO Output Transition Times (Vsupply = 1.85 V) (1) (1)
          3. 8.14.6.3.3 GPIO Input Transition Time Parameters
            1. 8.14.6.3.3.1 GPIO Input Transition Time Parameters'
        4. 8.14.6.4  I2C
          1. 8.14.6.4.1 I2C Timing Parameters (1)
        5. 8.14.6.5  IEEE 1149.1 JTAG
          1. 8.14.6.5.1 JTAG Timing Parameters
        6. 8.14.6.6  ADC
          1. 8.14.6.6.1 ADC Electrical Specifications
        7. 8.14.6.7  Camera Parallel Port
          1. 8.14.6.7.1 Camera Parallel Port Timing Parameters
        8. 8.14.6.8  UART
        9. 8.14.6.9  SD Host
        10. 8.14.6.10 Timers
  9. 9 Detailed Description
    1. 9.1 Arm® Cortex®-M4 Processor Core Subsystem
    2. 9.2 Wi-Fi Network Processor Subsystem
      1. 9.2.1 WLAN
      2. 9.2.2 Network Stack
    3. 9.3 Security
    4. 9.4 Power-Management Subsystem
      1. 9.4.1 VBAT Wide-Voltage Connection
      2. 9.4.2 Preregulated 1.85-V Connection
    5. 9.5 Low-Power Operating Mode
    6. 9.6 Memory
      1. 9.6.1 External Memory Requirements
      2. 9.6.2 Internal Memory
        1. 9.6.2.1 SRAM
        2. 9.6.2.2 ROM
        3. 9.6.2.3 Flash Memory
        4. 9.6.2.4 Memory Map
    7. 9.7 Restoring Factory Default Configuration
    8. 9.8 Boot Modes
      1. 9.8.1 Boot Mode List
  10. 10Applications, Implementation, and Layout
    1. 10.1 Application Information
      1. 10.1.1 Typical Application —CC3220x Wide-Voltage Mode
      2. 10.1.2 Typical Application Schematic—CC3220x Preregulated, 1.85-V Mode
    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 Interfaces
      4. 10.2.4 Digital Input and Output
      5. 10.2.5 RF Interface
  11. 11Device and Documentation Support
    1. 11.1 Development Tools and Software
    2. 11.2 Firmware Updates
    3. 11.3 Device Nomenclature
    4. 11.4 Documentation Support
    5. 11.5 支持资源
    6. 11.6 Trademarks
    7. 11.7 Electrostatic Discharge Caution
    8. 11.8 Export Control Notice
    9. 11.9 术语表
  12. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Packaging Information

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订购信息

10.2.3 Clock Interfaces

The following guidelines are for the slow clock.

  • The 32.768-kHz crystal must be placed close to the VQFN package.
  • Ensure that the load capacitance is tuned according to the board parasitics to the frequency tolerance is within ±150 ppm.
  • The ground plane on layer two is solid below the trace lanes and there is ground around these traces on the top layer.

The following guidelines are for the fast clock.

  • The 40-MHz crystal must be placed close to the VQFN package.
  • Ensure that he load capacitance is tuned according to the board parasitics to the frequency tolerance is within ±100 ppm at room temperature. The total frequency across parts, temperature, and with aging, must be ±25 ppm to meet the WLAN specification.
  • Ensure that no high-frequency lines are routed close to the crystal routing to avoid noise degradation.
  • Ensure that crystal tuning capacitors are close to the crystal pads.
  • Make both traces (XTAL_N and XTAL_P) as close to parallel as possible and approximately the same length.
  • The ground plane on layer two is solid below the trace lines and that there is ground around these traces on the top layer.
  • See CC31xx & CC32xx Frequency Tuning for frequency tuning.