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• RF/Layout
  • 2.4-GHz IEEE 802.15.4 Compliant RF Transceiver
  • Excellent Receiver Sensitivity and Robustness to Interference
  • Programmable Output Power Up to 4.5 dBm
  • Few External Components
  • Only a Single Crystal Needed for Asynchronous Networks
  • 6-mm × 6-mm QFN40 Package
  • Suitable for Systems Targeting Compliance With Worldwide Radio-Frequency
    Regulations: ETSI EN 300 328 and EN 300 440 (Europe), FCC CFR47 Part 15 (US),
    and ARIB STD-T-66 (Japan)
• USB
  • USB 2.0 Certified Full Speed Device (12 Mbps)
  • 5 Highly Flexible Endpoints
  • 1-KB Dedicated FIFO
  • DMA Access to FIFO
  • No 48-MHz Crystal Required
• Low Power
  • Active Mode RX (CPU Idle): 24 mA
  • Active Mode TX at 1 dBm (CPU Idle): 29 mA
  • Power Mode 1 (4 µs Wake-Up): 0.2 mA
  • Power Mode 2 (Sleep Timer Running): 1 µA
  • Power Mode 3 (External Interrupts): 0.4 µA
  • Wide Supply-Voltage Range (2 V–3.6 V)
• Microcontroller
  • High-Performance and Low-Power 8051 Microcontroller Core With Code Prefetch
  • 256-KB or 128-KB In-System-Programmable Flash
  • 8-KB RAM With Retention in All Power Modes
  • Hardware Debug Support 
• Peripherals
  • Powerful Five-Channel DMA
  • IEEE 802.15.4 MAC Timer, General-Purpose Timers (One 16-Bit, Two 8-Bit)
  • IR Generation Circuitry
  • 32-kHz Sleep Timer With Capture
  • CSMA/CA Hardware Support
  • Accurate Digital RSSI/LQI Support
  • Battery Monitor and Temperature Sensor
  • 12-Bit ADC With Eight Channels and Configurable Resolution
  • AES Security Coprocessor
  • Two Powerful USARTs With Support for Several Serial Protocols
  • 21 General-Purpose I/O Pins
    (19 × 4 mA, 2 × 20 mA)
  • Watchdog Timer
• Development Tools
  • CC2531 Development Kit
  • Certified CC2531 USB Dongle Reference Design
  • SmartRF™ Software
  • Packet Sniffer
  • IAR Embedded Workbench® Software Available
• APPLICATIONS
  • USB Upgradable 2.4-GHz IEEE 802.15.4 Systems
  • RF4CE Remote Control Target for TV or STB
  • PC Peripherals
  • ZigBee® Systems
  • Home/Building Automation
  • Lighting Systems
  • Industrial Control and Monitoring
  • Low-Power Wireless Sensor Networks
  • Consumer Electronics
  • Health Care

SmartRF, Z-Stack, RemoTI are trademarks of Texas Instruments.
IAR Embedded Workbench is a registered trademark of IAR Systems AB.
ZigBee is a registered trademark of ZigBee Alliance.
All other trademarks are the property of their respective owners.