SWRS323B April   2024  – August 2025 IWRL6432AOP

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Functional Block Diagram
  6. 5 Device Comparison
    1. 5.1 Related Products
  7. 6 Terminal Configurations and Functions
    1. 6.1 Pin Diagrams
    2.     10
    3. 6.2 Signal Descriptions
      1.      12
      2.      13
      3.      14
      4.      15
      5.      16
      6.      17
      7.      18
      8.      19
      9.      20
      10.      21
      11.      22
      12.      23
      13.      24
      14.      25
      15.      26
      16.      27
  8. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Power-On Hours (POH)
    4. 7.4  Recommended Operating Conditions
    5. 7.5  VPP Specifications for One-Time Programmable (OTP) eFuses
      1. 7.5.1 Recommended Operating Conditions for OTP eFuse Programming
      2. 7.5.2 Hardware Requirements
      3. 7.5.3 Impact to Your Hardware Warranty
    6. 7.6  Power Supply Specifications
      1. 7.6.1 Power Optimized 3.3V I/O Topology
      2. 7.6.2 Power Optimized 1.8V I/O Topology
      3. 7.6.3 BOM Optimized 3.3V I/O Topology
      4. 7.6.4 BOM Optimized 1.8V I/O Topology
      5. 7.6.5 System Topologies
        1. 7.6.5.1 Power Topologies
          1. 7.6.5.1.1 BOM Optimized Mode
          2. 7.6.5.1.2 Power Optimized Mode
      6. 7.6.6 Internal LDO output decoupling capacitor and layout conditions for BOM optimized topology
        1. 7.6.6.1 Single-Capacitor Rail
          1. 7.6.6.1.1 1.2V Digital LDO
        2. 7.6.6.2 Two-capacitor rail
          1. 7.6.6.2.1 1.2V RF LDO
          2. 7.6.6.2.2 1.2V SRAM LDO
          3. 7.6.6.2.3 1.0V RF LDO
      7. 7.6.7 Noise and Ripple Specifications
    7. 7.7  Power Save Modes
      1. 7.7.1 Typical Power Consumption Numbers
    8. 7.8  Peak Current Requirement per Voltage Rail
    9. 7.9  Supported DFE Features
    10. 7.10 RF Specification
    11. 7.11 CPU Specifications
    12. 7.12 Thermal Resistance Characteristics
    13. 7.13 Antenna Radiation Patterns
      1. 7.13.1 Antenna Radiation Patterns for Receiver
      2. 7.13.2 Antenna Radiation Patterns for Transmitter
    14. 7.14 Antenna Positions
    15. 7.15 Timing and Switching Characteristics
      1. 7.15.1  Power Supply Sequencing and Reset Timing
      2. 7.15.2  Synchronized Frame Triggering
      3. 7.15.3  Input Clocks and Oscillators
        1. 7.15.3.1 Clock Specifications
      4. 7.15.4  MultiChannel buffered / Standard Serial Peripheral Interface (McSPI)
        1. 7.15.4.1 McSPI Features
        2. 7.15.4.2 SPI Timing Conditions
        3. 7.15.4.3 SPI—Controller Mode
          1. 7.15.4.3.1 Timing and Switching Requirements for SPI - Controller Mode
          2. 7.15.4.3.2 Timing and Switching Characteristics for SPI Output Timings—Controller Mode
        4. 7.15.4.4 SPI—Peripheral Mode
          1. 7.15.4.4.1 Timing and Switching Requirements for SPI - Peripheral Mode
          2. 7.15.4.4.2 Timing and Switching Characteristics for SPI Output Timings—Secondary Mode
      5. 7.15.5  RDIF Interface Configuration
        1. 7.15.5.1 RDIF Interface Timings
        2. 7.15.5.2 RDIF Data Format
      6. 7.15.6  General-Purpose Input/Output
        1. 7.15.6.1 Switching Characteristics for Output Timing versus Load Capacitance (CL)
      7. 7.15.7  Controller Area Network - Flexible Data-rate (CAN-FD)
        1. 7.15.7.1 Dynamic Characteristics for the CANx TX and RX Pins
      8. 7.15.8  Serial Communication Interface (SCI)
        1. 7.15.8.1 SCI Timing Requirements
      9. 7.15.9  Inter-Integrated Circuit Interface (I2C)
        1. 7.15.9.1 I2C Timing Requirements
      10. 7.15.10 Quad Serial Peripheral Interface (QSPI)
        1. 7.15.10.1 QSPI Timing Conditions
        2. 7.15.10.2 Timing Requirements for QSPI Input (Read) Timings
        3. 7.15.10.3 QSPI Switching Characteristics
      11. 7.15.11 JTAG Interface
        1. 7.15.11.1 JTAG Timing Conditions
        2. 7.15.11.2 Timing Requirements for IEEE 1149.1 JTAG
        3. 7.15.11.3 Switching Characteristics Over Recommended Operating Conditions for IEEE 1149.1 JTAG
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Subsystems
      1. 8.3.1 RF and Analog Subsystem
      2. 8.3.2 Clock Subsystem
      3. 8.3.3 Transmit Subsystem
      4. 8.3.4 Receive Subsystem
      5. 8.3.5 Processor Subsystem
      6. 8.3.6 Host Interface
      7. 8.3.7 Application Subsystem Cortex-M4F
      8. 8.3.8 Hardware Accelerator (HWA1.2) Features
        1. 8.3.8.1 Hardware Accelerator Feature Differences Between HWA1.1 and HWA1.2
    4. 8.4 Other Subsystems
      1. 8.4.1 GPADC Channels (Service) for User Application
      2. 8.4.2 GPADC Parameters
    5. 8.5 Memory Partitioning Options
    6. 8.6 Boot Modes
  10. 9 Applications, Implementation, and Layout
    1. 9.1 Application Information
    2. 9.2 Reference Schematic
  11. 10Device and Documentation Support
    1. 10.1 Device Nomenclature
    2. 10.2 Tools and Software
    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)
  • AMY|101
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.3.8.1 Hardware Accelerator Feature Differences Between HWA1.1 and HWA1.2

Feature HWA1.0, HWA1.1
(xWR1843, xWR6843)		 HWA1.2
(xWRL6432, xWRL1432)
FFT features FFT sizes 1024, 512, 256, ... 1024, 512, 256, ...
Internal bit-width

24-bit I, 24-bit Q

 24-bit I, 24-bit Q
Configurable butterfly scaling at each stage Configurable butterfly scaling at each stage
FFT stitching up to 4096 point up to 4096 point
FFT benchmark for four 256-pt FFTs

1312 clock cycles

(6.56 µs at 200MHz)

1320 clock cycles

(16.5 µs at 80MHz)
No. of parameter-sets 16 32
Local memory 64KB 64KB
Input and Output formatter
  • A and B-dim addressing of local memory
  • Programmable scaling
  • A and B-dim addressing of local memory
  • Programmable scaling
Pre-FFT processing
  • Interference zero out with fixed threshold, based on magnitude
  • Complex multiplication (7 modes)
  • Real window coefficients
  • DC estimation and subtraction
  • Interference zero out with adaptive statistics, based on mag, mag-diff. Interference count indication.
  • Complex multiplication (7 modes)
  • Real window coefficients
Post-FFT processing Log-magnitude (0.3dB accuracy) Log-magnitude (0.06dB accuracy)
Compression and De-compression support Not available in HWA1.0 (xWR1843), Available in HWA1.1 (xWR6843) Available
Detection CFAR-CA (linear and log modes)
  • CFAR-CA (linear and log modes)
  • CFAR-OS (window size up to 32 on each side)
Statistics 1D Sum, 1D Max 1D Sum, 1D Max