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Overview
The KW31Z is an ultra-low-power, highly-integrated single-chip device that enables Bluetooth® low energy v4.2 RF connectivity for portable, extremely low-power embedded systems. Applications include portable healthcare 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, Bluetooth Low Energy Link Layer hardware, hardware security and peripherals optimized to meet the requirements of the target applications.
Kinetis KW41Z 系列产品对比
| Part Number | Wireless Connectivity Protocol | Memory | Package Size | Hardware Development Tool |
| MKW41Z512VHT4 | Bluetooth Low Energy and IEEE 802.15.4 | 512 KB Flash, 128 KB RAM |
7 mm x 7 mm x 1 mm 48-pin Laminate QFN |
FRDM-KW41Z USB-KW41Z |
| MKW41Z256VHT4 | 256 KB Flash, 64 KB SRAM |
|||
| MKW41Z512CAT4R | 512 KB Flash, 128 KB RAM |
3.9 mm x 3.8 mm 75-pin WLCSP |
||
| MKW31Z512VHT4 | Bluetooth Low Energy | 512 KB Flash, 128 KB RAM |
7 mm x 7 mm x 1 mm 48-pin Laminate QFN |
|
| MKW31Z256VHT4 | 256 KB Flash, 64 KB SRAM |
|||
| MKW31Z512CAT4R | 512 KB Flash, 128 KB RAM |
3.9 mm x 3.8 mm 75-pin WLCSP |
Features
1. Excellent coexistence performance;
2.Integrated balun to reduce system cost and PCB board area
3.Nine low-power modes to provide power optimization based on application requirements
4.Typical Rx/Tx Current (DC/DC Enabled): 6.8/6.1 mA;
5. Bypass Voltage: 1.71V to 3.6V;
6. DCDC Converter Buck Configuration: 2.1V to 4.2V;
7. DCDC Converter Boost Configuration: 0.9V to 1.795V
2.Integrated balun to reduce system cost and PCB board area
3.Nine low-power modes to provide power optimization based on application requirements
4.Typical Rx/Tx Current (DC/DC Enabled): 6.8/6.1 mA;
5. Bypass Voltage: 1.71V to 3.6V;
6. DCDC Converter Buck Configuration: 2.1V to 4.2V;
7. DCDC Converter Boost Configuration: 0.9V to 1.795V
Features
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Block Diagram
Application Note
Industrial Air Conditioning (AC) Anesthesia Unit Monitor Avionics Blood Glucose Management Energy Gateway Heat Metering Hospital Admission Machine Intermediate Flight Controller Powered Patient Beds Vital Signs Monitors Mobile Smart Watch Wristband Smart Home Home Control Panel Small and Medium Appliances Toys and Board Games
Development Board
1. FRDM-KW41Z: Freedom Development Kit for Kinetis® KW41Z/31Z/21Z MCUs
2. USB-KW41Z: Bluetooth Low Energy/IEEE® 802.15.4 Packet Sniffer/USB Dongle
3. KW41Z Power Amplifier Reference Design
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