KW47: Automotive Bluetooth Core 6 MCUs with Channel Sounding Localization for Access and Telematics

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KW47 Architecure

KW47 Architecure

KW47 Device Features

KW47 Device Features

Features

Application core

  • Arm Cortex®-M33 core up to 96 MHz

Memory

  • Up to 96Hz Arm Cortex-M33 core
  • 2 MB program flash with ECC
  • 264kB SRAM with ECC and parity

Radio subsystem

  • Dedicated CM33 core running at up to 64 MHz
  • Secure 512 kB Flash supporting upgradable software radio
  • 171 KB SRAM optimized for link layer support
  • 2.4 GHz Bluetooth Low Energy Core Version 6.0 upgradeable radio supporting up to 24 simultaneous hardware connections in any central/peripheral combination
  • –106 dBm 125 kbps Long Range Receive Sensitivity
  • –102 dBm 500 kbps Long Range Receive Sensitivity
  • –97.5 dBm 1 Mbps Receive Sensitivity
  • –95 dBm 2 Mbps Receiver Sensitivity
  • Programmable Transmit Output Power up to +10 dBm
  • Data Rates: 125 kbps, 500 kbps, 1 Mbps and 2 Mbps
  • Modulation Types: 2 Level FSK, GFSK, MSK, GMSK
  • On-chip balun with single ended bidirectional RF port

Peripherals

  • Analog
    • 16-bit single ended SAR Analog-to-digital converter (ADC) up to 2 Msps
    • Two high-speed analog comparators (CMP) with 8-bit digital-to-analog converter (DAC)
    • 1.0 V to 2.1 V Voltage Reference (Vref)
  • Timers
    • Two 6-channel 32-bit timers (TPM) with PWM capability and DMA support
    • Two 32-bit low-power timers (LPTMR) or pulse counters with compare features
    • 4-channel 32-bit low-power periodic interrupt timer (LPIT)
    • with DMA support
    • One 56-bit timestamp timer
    • 32-bit seconds real time counter (RTC) with 32-bit alarm and independent power supply
    • Signal frequency analyzer (SFA) provides facilities for measurement of clock period/frequency as well as time between triggers

Security

  • EdgeLock Secure Enclave
  • Secure boot and debug
  • Symmetric Key Encryption - AES-128/192/256 and ECB, CBC, CTR, GCM, CMAC, and CCM Modes
  • Asymmetric Key Encryption - ECC NIST P–192/224/256/384/521, Curve25519
  • Key Exchange algorithms - ECDH(E), SPAKE2+, JPAKE
  • Digital Signature algorithms - ECDSA, Ed25519
  • Hash algorithms - SHA2-224/256/384/512, Poly1305
  • Secure Key Generation, Storage and Management
  • Flash access protection and optional encryption on-the-fly decryption using a PRINCE XEX block cipher mode

Packaging

  • 7 x 7 mm 48HVQFN with "Wettable"flanks

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