SWRS353 April   2025 CC3350MOD , CC3351MOD

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Functional Block Diagrams
  6. 5 Pin Configuration and Functions
    1. 5.1 Pin Diagram
    2. 5.2 Pin Descriptions
  7. 6 Specifications
    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  WLAN Performance: 2.4GHz Receiver Characteristics
    6. 6.6  WLAN Performance: 2.4GHz Transmitter Power
    7. 6.7  WLAN Performance: 5GHz Receiver Characteristics
    8. 6.8  WLAN Performance: 5GHz Transmitter Power
    9. 6.9  BLE Performance: Receiver Characteristics
    10. 6.10 BLE Performance: Transmitter Characteristics
    11. 6.11 Current Consumption: 2.4GHz WLAN Static Modes
    12. 6.12 Current Consumption: 5GHz WLAN Static Modes
    13. 6.13 Current Consumption: 2.4GHz WLAN Use Cases
    14. 6.14 Current Consumption: 5GHz WLAN Use Cases
    15. 6.15 Current Consumption: BLE Static Modes
    16. 6.16 Current Consumption: BLE Use Cases
    17. 6.17 Current Consumption: Device Modes
    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
    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 Diagram: 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. 7 Device Certification
    1. 7.1 FCC Certification and Statement
    2. 7.2 IC/ISED Certification and Statement
    3. 7.3 ETSI/CE
    4. 7.4 MIC Certification
    5. 7.5 Manual Information to the End User
    6. 7.6 Module Markings
      1. 7.6.1 Test Grades
  9. 8 Application Information
    1. 8.1 Typical Application—CC335xMOD Reference Design
    2. 8.2 Design Recommendations
      1. 8.2.1 General Layout Recommendations
      2. 8.2.2 CC335xMOD RF Layout Recommendations
      3. 8.2.3 Thermal Board Recommendations
  10. 9 Device and Documentation Support
    1. 9.1 Third-Party Products Disclaimer
    2. 9.2 Device Nomenclature Boilerplate
    3. 9.3 Tools and Software
    4. 9.4 Documentation Support
    5. 9.5 Support Resources
    6. 9.6 Trademarks
    7. 9.7 Electrostatic Discharge Caution
    8. 9.8 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

6.18.2.2 Slow Clock Using an External Oscillator

For excellent power consumption, the slow clock can be generated externally by an oscillator or sourced from elsewhere in the system. The external source must meet the requirements shown below. This clock can be fed into the CC335xMOD pin SLOW_CLK_IN and must be stable before nReset is deasserted and the device is enabled.

Table 6-1 External Slow Clock Requirements
ParameterDescriptionMINTYPMAXUnit
Input slow clock frequencySquare wave32768Hz
Frequency accuracyInital + temperature + aging±250ppm
Input Duty cycle30%50%70%
Tr/TfRise and fall time10% to 90% (rise) and 90% to 10% (fall) of digital signal level100ns
VILInput low level00.35 × VIOV
VIHInput high level0.65 × VIO1.95V
Input impedence1MΩ
Input capacitance5pF