SWRS272E April   2023  – September 2024 CC2340R2 , CC2340R5

PRODMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Functional Block Diagram
  6. 5 Device Comparison
  7. 6 Pin Configurations and Functions
    1. 6.1 Pin Diagrams
      1. 6.1.1 Pin Diagram—RKP Package (Top View)
      2. 6.1.2 Pin Diagram – RGE Package (Top View)
      3. 6.1.3 Pin Diagram—YBG Package (Top View)
    2.     12
    3. 6.2 Signal Descriptions
      1.      14
      2.      15
      3.      16
      4.      17
      5.      18
      6.      19
      7.      20
      8.      21
      9.      22
      10.      23
      11.      24
      12.      25
      13.      26
      14.      27
      15.      28
      16.      29
      17.      30
      18.      31
    4. 6.3 Connections for Unused Pins and Modules
  8. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  DCDC
    5. 7.5  Global LDO (GLDO)
    6. 7.6  Power Supply and Modules
    7. 7.7  Battery Monitor
    8. 7.8  Temperature Sensor
    9. 7.9  Power Consumption - Power Modes
    10. 7.10 Power Consumption - Radio Modes
    11. 7.11 Nonvolatile (Flash) Memory Characteristics
    12. 7.12 Thermal Resistance Characteristics
    13. 7.13 RF Frequency Bands
    14. 7.14 Bluetooth Low Energy - Receive (RX)
    15. 7.15 Bluetooth Low Energy - Transmit (TX)
    16. 7.16 Zigbee and Thread - IEEE 802.15.4-2006 2.4 GHz (OQPSK DSSS1:8, 250 kbps) - RX
    17. 7.17 Zigbee and Thread - IEEE 802.15.4-2006 2.4 GHz (OQPSK DSSS1:8, 250 kbps) - TX
    18. 7.18 Proprietary Radio Modes
    19. 7.19 2.4 GHz RX/TX CW
    20. 7.20 Timing and Switching Characteristics
      1. 7.20.1 Reset Timing
      2. 7.20.2 Wakeup Timing
      3. 7.20.3 Clock Specifications
        1. 7.20.3.1 48 MHz Crystal Oscillator (HFXT)
        2. 7.20.3.2 48 MHz RC Oscillator (HFOSC)
        3. 7.20.3.3 32 kHz Crystal Oscillator (LFXT)
        4. 7.20.3.4 32 kHz RC Oscillator (LFOSC)
    21. 7.21 Peripheral Characteristics
      1. 7.21.1 UART
        1. 7.21.1.1 UART Characteristics
      2. 7.21.2 SPI
        1. 7.21.2.1 SPI Characteristics
        2. 7.21.2.2 SPI Controller Mode
        3. 7.21.2.3 SPI Timing Diagrams - Controller Mode
        4. 7.21.2.4 SPI Peripheral Mode
        5. 7.21.2.5 SPI Timing Diagrams - Peripheral Mode
      3. 7.21.3 I2C
        1. 7.21.3.1 I2C
        2. 7.21.3.2 I2C Timing Diagram
      4. 7.21.4 GPIO
        1. 7.21.4.1 GPIO DC Characteristics
      5. 7.21.5 ADC
        1. 7.21.5.1 Analog-to-Digital Converter (ADC) Characteristics
      6. 7.21.6 Comparators
        1. 7.21.6.1 Ultra-Low Power Comparator
    22. 7.22 Typical Characteristics
      1. 7.22.1 MCU Current
      2. 7.22.2 RX Current
      3. 7.22.3 TX Current
      4. 7.22.4 RX Performance
      5. 7.22.5 TX Performance
      6. 7.22.6 ADC Performance
  9. 8 Detailed Description
    1. 8.1  Overview
    2. 8.2  System CPU
    3. 8.3  Radio (RF Core)
      1. 8.3.1 Bluetooth 5.3 Low Energy
      2. 8.3.2 802.15.4 (Thread and Zigbee)
    4. 8.4  Memory
    5. 8.5  Cryptography
    6. 8.6  Timers
    7. 8.7  Serial Peripherals and I/O
    8. 8.8  Battery and Temperature Monitor
    9. 8.9  µDMA
    10. 8.10 Debug
    11. 8.11 Power Management
    12. 8.12 Clock Systems
    13. 8.13 Network Processor
  10. 9 Application, Implementation, and Layout
    1. 9.1 Reference Designs
    2. 9.2 Junction Temperature Calculation
  11. 10Device and Documentation Support
    1. 10.1 Device Nomenclature
    2. 10.2 Tools and Software
      1. 10.2.1 SimpleLink™ Microcontroller Platform
    3. 10.3 Documentation Support
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

8.12 Clock Systems

The CC2340R device has the following internal system clocks.

The 48MHz HFCLK is used as the main system (MCU and peripherals) clock. This is driven by the internal 48MHz RC Oscillator (HFOSC), which can track its accuracy against an external 48MHz crystal (HFXT). Radio operation requires an external 48MHz crystal.

The 32.768kHz LFCLK is used as the internal low-frequency system clock. It is used for the RTC, the watchdog timer (if enabled in standby power mode), and to synchronize the radio timer before or after Standby power mode. LFCLK can be driven by the internal 32.8kHz RC Oscillator (LFOSC), a 32.768kHz watch-type crystal, or clock input in LFXT bypass mode. When using a crystal or the internal RC oscillator, the device can output the 32kHz LFCLK signal to other devices, thereby reducing the overall system cost.