SWRS284A April   2024  – July 2024 CC3350 , CC3351

PRODUCTION DATA  

  1.   1
  2. 1Features
  3. 2Applications
  4. 3Description
  5. 4System Diagram
  6. 5Pin Configuration and Functions
    1. 5.1 Pin Diagram
    2. 5.2 Pin Attributes
  7. 6Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Electrical Characteristics
    5. 6.5  Thermal Resistance Characteristics
    6. 6.6  WLAN Performance: 2.4GHz Receiver Characteristics
    7. 6.7  WLAN Performance: 2.4GHz Transmitter Power
    8. 6.8  WLAN Performance: 5GHz Receiver Characteristics
    9. 6.9  WLAN Performance: 5GHz Transmitter Power
    10. 6.10 BLE Performance: Receiver Characteristics
    11. 6.11 BLE Performance—Transmitter Characteristics
    12. 6.12 Current Consumption - 2.4-GHz WLAN Static Modes
    13. 6.13 Current Consumption - 2.4-GHz WLAN Use Cases
    14. 6.14 Current Consumption - 5-GHz WLAN Static Modes
    15. 6.15 Current Consumption - 5-GHz WLAN Use Cases
    16. 6.16 Current Consumption - BLE Static Modes
    17. 6.17 Current Consumption—Device States
    18. 6.18 Timing and Switching Characteristics
      1. 6.18.1 Power Supply Sequencing
      2. 6.18.2 Clocking Specifications
        1. 6.18.2.1 Slow Clock Generated Internally
        2. 6.18.2.2 Slow Clock Using an External Oscillator
          1. 6.18.2.2.1 External Slow Clock Requirements
        3. 6.18.2.3 Fast Clock Using an External Crystal (XTAL)
          1. 6.18.2.3.1 External Fast Clock XTAL Specifications
    19. 6.19 Interface Timing Characteristics
      1. 6.19.1 SDIO Timing Specifications
        1. 6.19.1.1 SDIO Timing Diagram—Default Speed
        2. 6.19.1.2 SDIO Timing Parameters—Default Speed
        3. 6.19.1.3 SDIO Timing Diagram—High Speed
        4. 6.19.1.4 SDIO Timing Parameters—High Speed
      2. 6.19.2 SPI Timing Specifications
        1. 6.19.2.1 SPI Timing Diagram
        2. 6.19.2.2 SPI Timing Parameters
      3. 6.19.3 UART 4-Wire Interface
        1. 6.19.3.1 UART Timing Parameters
  8. 7Applications, Implementation, and Layout
  9. 8Device and Documentation Support
    1. 8.1 Third-Party Products Disclaimer
    2. 8.2 Device Nomenclature Boilerplate
    3. 8.3 Tools and Software
    4. 8.4 Documentation Support
    5. 8.5 Support Resources
    6. 8.6 Trademarks
    7. 8.7 Electrostatic Discharge Caution
    8. 8.8 Glossary
  10. 9Revision History

6.18.2 Clocking Specifications

The CC335x device uses two clocks for operation:

  • A fast clock running at 40MHz for WLAN/BLE functions

  • A slow clock running at 32.768kHz for low-power modes

The slow clock can be generated internally or externally. The fast clock must be generated externally.