CC2545

• RF section
  • Single-Chip 2.4-GHz RF Transceiver and MCU
  • Supports 250 kbps, 500 kbps, 1 Mbps and 2 Mbps data rates
  • Excellent Link Budget, Enabling Long Range Without External Front-Ends
  • Programmable Output Power up to 4 dBm
  • Excellent Receiver Sensitivity (–90 dBm at 2 Mbps,
    –98 dBm at 250 kbps)
  • Suitable for Systems Targeting Compliance With Worldwide Radio
    Frequency Regulations: ETSI EN 300 328 and EN 300 440 Category 2 (Europe),
    FCC CFR47 Part 15 (US), and ARIB STD-T66 (Japan)
  • Accurate RSSI Function
• Layout
  • Few External Components
  • Pin Out Suitable for Single Layer PCB Applications
  • Reference Designs Available
  • 48-pin 7-mm × 7-mm QFN (31 General I/O Pins) Package
• Low Power
  • Active Mode RX Best Performance: 20.8 mA
  • Active Mode TX (0 dBm): 26.3 mA
  • Power Mode 1 (5 µs Wake-Up): 235 µA
  • Power mode 2 (sleep timer on): 0.9 µA
  • Power mode 3 (External interrupts): 0.4µA
  • Wide Supply Voltage Range (2V to 3.6V)
  • Full RAM and Register Retention in All Power Modes
• Microcontroller
  • High-Performance and Low-Power 8051
    Microcontroller Core With Code Prefetch
  • 32-KB Flash Program Memory
  • 1 KB SRAM
  • Hardware Debug Support
  • Extensive Baseband Automation, Including Auto-Acknowledgement and
    Address Decoding
• Peripherals
  • Two-Channel DMA with Access to all Memory Areas and Peripherals
  • General-Purpose Timers (One 16-Bit, Two 8-Bit)
  • Radio Timer, 40-Bit
  • IR Generation Circuitry
  • Several Oscillators:
    • 32MHz XOSC
    • 16MHz RCOSC
    • 32kHz XOSC/li>
    • 32kHz RCOSC
  • 32-kHz Sleep Timer With Capture
  • AES Security Coprocessor
  • UART/SPI/I²C Serial Interface
  • 31 General-Purpose I/O pins (3 × 20-mA Drive Strength, Remaining pins
    have 4 mA Drive Strength)
  • Watchdog Timer
  • True Random-Number Generator
  • ADC and Analog Comparator

The CC2545 is an optimized system-on-chip (SoC) solution with data rates up to 2Mbps built with low bill-of-material cost. The CC2545 combines the excellent performance of a leading RF transceiver with a single-cycle 8051 compliant CPU, 32-KB in-system programmable flash memory, up to 1-KB RAM, 31 General-Purpose I/O pins and many other powerful features. The CC2545 has efficient power modes with RAM and register retention below 1 µA, making it highly suited for low-duty-cycle systems where ultralow power consumption is required. Short transition times between operating modes further ensure low energy consumption.

The CC2545 is compatible with the CC2541/CC2543/CC2544. It comes in a 7-mm × 7-mm QFN48 package, with SPI/UART/I2C interface. The CC2545 comes complete with reference designs from Texas Instruments.

The device targets wireless consumer and HID applications. The CC2545 is tailored for peripheral devices such as wireless keyboards.