SWRS337B December   2025  – June 2026 CC3551E

PRODUCTION DATA  

1.   1
2. 1 Features
3. 2 Applications
4. 3 Description
5. 4 Functional Block Diagram
6. 5 Pin Configuration and Functions
   1. 5.1 Pin Diagram
   2. 5.2 Pin Attributes
   3. 5.3 Signal 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  Thermal Resistance Characteristics
   6. 6.6  WLAN Performance: 2.4-GHz Receiver Characteristics
   7. 6.7  WLAN Performance: 2.4-GHz Transmitter Power
   8. 6.8  WLAN Performance: 5-GHz Receiver Characteristics
   9. 6.9  WLAN Performance: 5-GHz Transmitter Power
   10. 6.10 Bluetooth LE Performance: Receiver Characteristics
   11. 6.11 Bluetooth LE Performance - Transmitter Characteristics
   12. 6.12 Current Consumption - 2.4GHz WLAN Static Modes 
   13. 6.13 Current Consumption - 5GHz WLAN Static Modes
   14. 6.14 Current Consumption - 2.4GHz WLAN Use Cases
   15. 6.15 Current Consumption - Bluetooth LE Static Modes 
   16. 6.16 Current Consumption - MCU Modes
   17. 6.17 Timing and Switching Characteristics
       1. 6.17.1 Clock Specifications
          1. 6.17.1.1 Fast Clock Using an External Crystal (XTAL)
             1. 6.17.1.1.1 External Fast Clock XTAL Specifications
          2. 6.17.1.2 Slow Clock Using Internal Oscillator
          3. 6.17.1.3 Slow Clock Using an External Oscialltor
             1. 6.17.1.3.1 External Slow Clock Oscillator Specifications
          4. 6.17.1.4 Slow Clock Using an External Crystal (XTAL)
             1. 6.17.1.4.1 External Slow Clock XTAL Specifications
       2. 6.17.2 Peripheral Characteristics
          1. 6.17.2.1  ADC
             1. 6.17.2.1.1 ADC Electrical Specifications
          2. 6.17.2.2  I2C
             1. 6.17.2.2.1 I2C Timing Parameters
             2. 6.17.2.2.2 I2C Timing Diagram
          3. 6.17.2.3  SPI
             1. 6.17.2.3.1 SPI Timing Parameters - Controller Mode
             2. 6.17.2.3.2 SPI Timing Diagrams - Controller Mode
             3. 6.17.2.3.3 SPI Timing Parameters - Peripheral Mode
             4. 6.17.2.3.4 SPI Timing Diagrams - Peripheral Mode
          4. 6.17.2.4  xSPI
             1. 6.17.2.4.1 QSPI Timing Parameters
          5. 6.17.2.5  UART
             1. 6.17.2.5.1 UART Timing Parameters
          6. 6.17.2.6  I2S
             1. 6.17.2.6.1 I2S Timing Parameters - Controller Mode
             2. 6.17.2.6.2 I2S Timing Parameters - Peripheral Mode
          7. 6.17.2.7  PDM
             1. 6.17.2.7.1 PDM Timing Parameters
          8. 6.17.2.8  CAN
             1. 6.17.2.8.1 CAN Characteristics
          9. 6.17.2.9  SDMMC
             1. 6.17.2.9.1 SDMMC Timing Parameters - Default Speed 
             2. 6.17.2.9.2 SDMMC Timing Parameters - High Speed 
          10. 6.17.2.10 SDIO
              1. 6.17.2.10.1 SDIO Timing Parameters - Default Speed 
              2. 6.17.2.10.2 SDIO Default Timing
              3. 6.17.2.10.3 SDIO Timing Parameters - High Speed 
              4. 6.17.2.10.4 SDIO High Speed Timing
8. 7 Detailed Description
   1. 7.1  Overview
   2. 7.2  Arm Cortex-M33 Processor
   3. 7.3  Wireless Subsystem
      1. 7.3.1 WLAN
      2. 7.3.2 Bluetooth Low Energy
   4. 7.4  Memory Subsystem (MEMSS)
      1. 7.4.1 External Memory Interface
   5. 7.5  Hardware Security Module
   6. 7.6  Debug Subsystem (DEBUGSS)
   7. 7.7  General Purpose Timers
   8. 7.8  Real Time Clock (RTC)
   9. 7.9  Direct Memory Access (DMA)
   10. 7.10 Serial Peripherals and I/Os
9. 8 Applications, Implementation, and Layout
10. 9 Device and Documentation Support
    1. 9.1 Third-Party Products Disclaimer
    2. 9.2 Device Nomenclature
    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