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Texas Instruments CC274xR-Q1 Automotive SimpleLink™ Wireless MCUs

Texas Instruments CC274xR-Q1 Automotive SimpleLink™ Wireless Microcontrollers (MCUs) offer an Arm® Cortex®-M33 system CPU that runs the application, the protocol stacks, and the radio. These devices feature BLUETOOTH® channel sounding technology, an Algorithm Processing Unit (APU), Arm Custom Data Extension (CDE) instruction, a Floating-Point Unit (FPU), and TrustZone®-M. The CC274xR-Q1 MCUs support up to 1MB in-system programmable Flash, 162KB SRAM, and 32KB System ROM with a secure boot RoT and a serial (SPI/UART) bootloader. These devices operate at a junction temperature range of -40°C to 125°C and a wide supply voltage range of 1.71V to 3.8V. The CC274xR-Q1 devices are AEC-Q100 qualified for automotive applications. These microcontrollers are ideal for car access, including Passive Entry Passive Start (PEPS), Phone as a Key (PaaK), and Remote Keyless Entry (RKE).

The CC274xR-Q1 MCUs offer a Real-Time Clock (RTC), watchdog timer, temperature sensor, battery monitor, and 3 x 16-bit and 1 x 32-bit general-purpose timers in quadrature decode mode. The device includes Wi-Fi®, BLUETOOTH® low energy, Thread, Zigbee®, Sub 1GHz MCUs, and host MCUs, sharing a single-core  Software Development Kit (SDK) and a rich toolset. The CC274xR-Q1 MCUs consist of an on-chip buck DC/DC converter, 6.1mA RX current, 7.7mA TX current at 0dBm, 6.8mA active mode MCU 96MHz (CoreMark®), and 160nA shutdown. These devices are RoHS compliant and available in a 6mm x 6mm QFN40 package with wettable flanks.

Features

  • Wireless MCU processing elements:
    • Arm Cortex-M33 processor (96MHz) with FPU (floating point unit), TrustZone-M support, and Custom Datapath Extension (CDE) for machine learning acceleration
    • Algorithm Processing Unit (APU) (96MHz)
    • Mathematical accelerator for efficient vector and matrix operations
    • Bluetooth channel sounding postprocessing support for IFFT and advanced superresolution algorithms such as MUltiple SIgnal Classification (MUSIC)
  • Wireless MCU memory:
    • Up to 1MB of in-system programmable Flash
    • Up to 162KB of SRAM
    • 32KB of system ROM with secure boot Root Of Trust (RoT) and a serial (SPI/UART) bootloader
    • Serial Wire Debug (SWD)
  • Qualified for automotive application:
    • AEC-Q100 Grade 2 qualified:
      • -40°C to +125°C junction temperature
    • HBM ESD classification level 2
    • CDM ESD classification level C3
  • MCU peripherals:
    • 23 GPIOs, digital peripherals can be routed to multiple GPIOs:
      • Two SWD IO pads, multiplexed with GPIOs
      • Two LFXT IO pads, multiplexed with GPIOs
      • 19 DIOs (analog or digital IOs)
    • All GPIOs with wakeup and interrupt capabilities
    • 3 x 16-bit and 1 x 32-bit general-purpose timers, quadrature decode mode support
    • Real-Time Clock (RTC)
    • Watchdog timer
    • System timer for radio, RTOS, and application operations for Bluetooth channel sounding postprocessing
    • 12-bit ADC, up to 1.2MSPS, eight external inputs
    • Temperature sensor and battery monitor
    • 1x low-power comparator
    • 2x UART with LIN capability
    • 2x SPI
    • 1x I2C
    • 1x I2S
    • 1x CAN-FD controller with CAN/CAN-FD ISO 16845-1:2016 certification compliance
  • Low power consumption (VDDS at 3.3V):
    • On-chip buck DC/DC converter
    • 6.1mA RX current
    • 7.7mA TX current at 0dBm
    • 24.5mA TX current at +10dBm
    • 6.8mA active mode MCU 96MHz (CoreMark®)
    • 0.9µA (low power mode, RTC on, and full SRAM retention) standby
    • 160nA shutdown
  • Wireless protocol support:
    • Bluetooth low energy 5.4
    • Bluetooth low energy 6.0 ready
    • Support for Bluetooth channel sounding (high-accuracy distance measurement)
  • Regulatory compliance:
    • Designed for systems targeting compliance with worldwide radio frequency regulations:
      • EN 300 328 (Europe)
      • FCC CFR47 part 15 (US)
      • ARIB STD-T66 (Japan)
  • High-performance radio:
    • 2.4GHz RF transceiver compatible with Bluetooth low energy specification
    • Output power up to +10dBm (R version)
    • Output power up to +20dBm (P version)
    • Integrated BALUN
    • Integrated RF switch
    • Receiver sensitivity:
      • -103.5dBm Bluetooth LE 125kbps
      • -97dBm Bluetooth LE 1Mbps
  • Regulatory compliance:
    • Designed for systems targeting compliance with worldwide radio frequency regulations
      • EN 300 328 (Europe)
      • FCC CFR47 part 15 (US)
      • ARIB STD-T66 (Japan)
  • 1.71V to 3.8V wide supply voltage range
  • 6mm x 6mm QFN40 with wettable flanks package
  • RoHS-compliant package

Applications

  • Automotive:
    • Car access and security systems:
      • Digital key
      • Phone as a Key (PaaK)
      • Passive Entry Passive Start (PEPS)
      • Remote Keyless Entry (RKE)

Development Kit

Texas Instruments LP-EM-CC2745R10-Q1 LaunchPad™ Development Kit

Ideal for development with integrated power amp devices with radio support for 2.4GHz operation.

Learn Moreabout Texas Instruments LP-EM-CC2745R10-Q1 LaunchPad™ Development Kit View Productsrelated to Texas Instruments LP-EM-CC2745R10-Q1 LaunchPad™ Development Kit

Functional Block Diagram

Block Diagram - Texas Instruments CC274xR-Q1 Automotive SimpleLink™ Wireless MCUs

Additional Resource

Published: 2025-01-27 | Updated: 2025-08-22