KW31Z: Kinetis KW31Z-2.4 GHz Bluetooth Low Energy (BLE 4.2) Microcontroller based on ARM® Cortex®-M0+

The KW31Z is an ultra low-power, highly-integrated single-chip device that enables Bluetooth® low energy (BLE) v4.2 RF connectivity for portable, extremely low-power embedded systems. Applications include portable health care devices, wearable sports and fitness devices, AV remote controls, computer keyboards and mice, gaming controllers, access control security systems, smart energy and home area networks.

The KW31Z Wireless MCU integrates a 2.4 GHz transceiver supporting FSK/GFSK modulations, an ARM® Cortex®-M0+ CPU, up to 512 KB Flash and up to 128 KB SRAM, BLE Link Layer hardware, hardware security and peripherals optimized to meet the requirements of the target applications.

Kinetis® W Series KW31Z MCUs Block Diagram
Kinetis W Series MCUs: Expanding the Possibilities of the IoT
特性
  • Bluetooth Low Energy Radio Features
    • 2.4 GHz Bluetooth Low Energy version 4.2 Compliant
    • Typical Receiver Sensitivity (BLE) = -95 dBm
    • Programmable Transmitter Output Power up to +3.5 dBm
  • 2.4 GHz Bluetooth Low Energy version 4.2 Compliant
  • Typical Receiver Sensitivity (BLE) = -95 dBm
  • Programmable Transmitter Output Power up to +3.5 dBm
  • Core and Memories
    • Up to 48 MHz ARM® Cortex®-M0+ core
    • Up to 512 KB Flash memory
    • Up to 128 KB SRAM
    • Excellent coexistence performance
    • Integrated balun to reduce system cost and PCB baord area
  • Up to 48 MHz ARM® Cortex®-M0+ core
  • Up to 512 KB Flash memory
  • Up to 128 KB SRAM
  • Excellent coexistence performance
  • Integrated balun to reduce system cost and PCB baord area
  • Low Power Consumption and Operating Voltage Ranges
    • Nine low-power modes to provide power optimization based on application requirements
    • Typical Rx/Tx Current (DC/DC Enabled): 6.8/6.1 mA
    • Bypass Voltage: 1.71V to 3.6V
    • DCDC Converter Buck Configuration: 2.1V to 4.2V
    • DCDC Converter Boost Configuration: 0.9V to 1.795V
  • Nine low-power modes to provide power optimization based on application requirements
  • Typical Rx/Tx Current (DC/DC Enabled): 6.8/6.1 mA
  • Bypass Voltage: 1.71V to 3.6V
  • DCDC Converter Buck Configuration: 2.1V to 4.2V
  • DCDC Converter Boost Configuration: 0.9V to 1.795V
  • Analog modules
    • 16-bit Analog-to-Digital Converter (ADC)
    • 12-bit Digital-to-Analog Converter (DAC)
    • 6-bit High Speed Analog Comparator (CMP)
  • 16-bit Analog-to-Digital Converter (ADC)
  • 12-bit Digital-to-Analog Converter (DAC)
  • 6-bit High Speed Analog Comparator (CMP)
  • Security
    • AES-128 Accelerator (AESA), True Random Number Generator (TRNG)
  • AES-128 Accelerator (AESA), True Random Number Generator (TRNG)
  • Supported Software
    • BLE Host Stack and Profiles
    • BLE Mesh
    • IPv6 6LoBLE
    • Generic FSK Link Layer Software
    • Kinetis® Software Development Kit (SDK)
    • FreeRTOS kernel and a bare-metal non-preemptive task scheduler
    • Support for Kinetis Design Studio (KDS) and IAR
  • BLE Host Stack and Profiles
  • BLE Mesh
  • IPv6 6LoBLE
  • Generic FSK Link Layer Software
  • Kinetis® Software Development Kit (SDK)
  • FreeRTOS kernel and a bare-metal non-preemptive task scheduler
  • Support for Kinetis Design Studio (KDS) and IAR
Data Sheets (1)
Name/DescriptionModified Date
MKW41Z/31Z/21Z Data Sheet (REV 1) PDF (1.3 MB) MKW41Z51217 Oct 2016
Errata (1)
Name/DescriptionModified Date
Mask Set Errata for Mask 1N16S (REV 28SEP2016) PDF (88.0 kB) KINETIS_W_1N16S04 Oct 2016
Reference Manuals (1)
Name/DescriptionModified Date
MKW41Z/31Z/21Z Reference Manual (REV 1) PDF (21.0 MB) MKW41Z512RM17 Oct 2016
Users Guides (3)
Name/DescriptionModified Date
FRDM-KW41Z Quick Start Guide (REV 0) PDF (587.3 kB) FRDMKW41ZQRG11 Oct 2016
FRDM-KW41Z Freedom Development Board User's Guide (REV 0) PDF (1.3 MB) FRDMKW41ZUG11 Aug 2016
USB-KW41Z Sniffer/Development Board User's Guide (REV 0) PDF (870.0 kB) USBKW41ZUG11 Aug 2016
Fact Sheets (1)
Name/DescriptionModified Date
Kinetis® KW41Z/31Z/21Z Wireless MCUs - Fact Sheet (REV 3) PDF (3.4 MB) KNTSKW41Z31Z21ZFS28 Sep 2016
Ordering Information
ProductStatusStatusBudgetary Price excluding tax(US$)Core TypeOperating Frequency (Max) (MHz)On-chip SRAM (KB)Total Flash (KByte)USBIntegrated wireless radioPackage typeAmbient Operating Temperature (Min-Max) (°C)Transmit Current (mA)Receive Current (mA)RX SensitivityRadio Protocol Supported
MKW31Z512VHT4Active10K @ US$3.06ARM Cortex-M0+48128512-40 to 105
MKW31Z256VHT4Active10K @ US$2.20ARM Cortex-M0+4864256-40 to 105
Package Information
Package DescriptionOutline VersionPackingProduct StatusPart NumberChemical ContentRoHS / Pb FreeChina RoHS LookupMSLPPT (°C)
LamQFN 48 7*7*0.98 P0.598ASA00694DMPQ - 260 TRAYPOQ - 1300 BRICKActiveMKW31Z256VHT4MKW31Z256VHT4.pdf3260
MPQ - 260 TRAYPOQ - 1300 BRICKActiveMKW31Z512VHT4MKW31Z512VHT4.pdf3260
MKW41Z/31Z/21Z Data Sheet kw21z
Mask Set Errata for Mask 1N16S kw21z
MKW41Z/31Z/21Z Reference Manual kw21z
FRDM-KW41Z Quick Start Guide kw21z
FRDM-KW41Z Freedom Development Board User's Guide kw21z
USB-KW41Z Sniffer/Development Board User's Guide kw21z
Kinetis® KW41Z/31Z/21Z Wireless MCUs - Fact Sheet kw21z
98ASA00694D kw41z
MKW31Z256VHT4.pdf kw31z
MKW31Z512VHT4.pdf kw31z