KW21Z: Kinetis KW21Z-2.4 GHz 802.15.4 Wireless Radio Microcontroller based on ARM® Cortex®-M0+
The KW21Z is an ultra low-power, highly-integrated single-chip device that enables IEEE® 802.15.4 RF connectivity for portable, extremely low-power embedded systems. Applications include portable health care devices, access control, security systems, smart energy and home area networks.
The KW21Z Wireless MCU integrates a 2.4 GHz transceiver supporting O-QPSK modulations, an ARM® Cortex®-M0+ CPU, up to 512 KB Flash and up to 128 KB SRAM, 802.15.4 packet processor, hardware security and peripherals optimized to meet the requirements of the target applications. The KW21Z is an ideal solution for single chip Thread devices including routers and end devices as well as border routers when adding connectivity for communicating with the cloud.
Kinetis® W Series KW21Z MCUs Block Diagram
Kinetis W Series MCUs: Expanding the Possibilities of the IoT
特性
- 802.15.4 Radio Features
- IEEE Std. 802.15.4 Standard Compliant
- Typical Receiver Sensitivity (802.15.4) = -100 dBm
- Programmable Transmitter Output Power up to +3.5 dBm
- IEEE Std. 802.15.4 Standard Compliant
- Typical Receiver Sensitivity (802.15.4) = -100 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 board 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 board 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
- Thread, 802.15.4 MAC and SMAC
- Kinetis® Software Development Kit (SDK)
- FreeRTOS kernel and a bare-metal non-preemptive task scheduler
- Support for Kinetis Design Studio (KDS) and IAR
- Thread, 802.15.4 MAC and SMAC
- 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)
Errata (1)
Reference Manuals (1)
Users Guides (3)
Fact Sheets (1)
Ordering Information
| Product | Status | Status | Budgetary Price excluding tax(US$) | Core Type | Operating Frequency (Max) (MHz) | On-chip SRAM (KB) | Total Flash (KByte) | USB | Integrated wireless radio | Package type | Ambient Operating Temperature (Min-Max) (°C) | Transmit Current (mA) | Receive Current (mA) | RX Sensitivity | Radio Protocol Supported |
|---|
| MKW21Z256VHT4 | Active | | 10K @ US$2.32 | ARM Cortex-M0+ | 48 | 64 | 256 | | | | -40 to 105 | | | | |
| MKW21Z512VHT4 | Active | | 10K @ US$3.21 | ARM Cortex-M0+ | 48 | 128 | 512 | | | | -40 to 105 | | | | |
Package Information
| Package Description | Outline Version | Packing | Product Status | Part Number | Chemical Content | RoHS / Pb FreeChina RoHS Lookup | MSL | PPT (°C) |
|---|
| LamQFN 48 7*7*0.98 P0.5 | 98ASA00694D | MPQ - 260 TRAYPOQ - 1300 BRICK | Active | MKW21Z256VHT4 | MKW21Z256VHT4.pdf |   | 3 | 260 |
| MPQ - 260 TRAYPOQ - 1300 BRICK | Active | MKW21Z512VHT4 | MKW21Z512VHT4.pdf | | 3 | 260 |
