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KW31Z

恩智浦
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概述

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
 

特性

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

特性

-

应用说明

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

开发板

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

内核

Arm Cortex-M0+

CPU时钟频率

48 MHz

CPU构造

__

CPU特性

__

蓝牙版本

4.2

频率

48 MHz

Flash (kB)

512 KB

缓存

-

SRAM (kB)

128 KB

EEPROM (kB)

__

调试

__

升级方式

Manual

晶振

64 MHz

PLL时钟

64 MHz

可选晶振

32.768 kHz

RC时钟

32.768 kHz

外部时钟

32.768 kHz

时钟 [数量, 位]

no

实时时钟

no

看门狗计数器

no

GPIO

__

针脚

__

针距

__

通道

__

ADC [数量, 位]

16-bit

真随机数发生机器

__

模拟组件

no

低功耗组件

no

温度传感器

no

NFC标签

__

SPI

__

DAC [数量, 位]

12-bit

UART

__

同步串行接口

__

PWM [数量, 位]

__

I2C

支持

TWI

1 × TWI master and slave

QDEC

-

PDM

-

USB

1 × USB Full-speed device

SPI

1 × high-speed SPI master

Quad SPI

-

I2S

支持

调试界面

-

人机界面

-

可编程通道

__

固定通道

__

通道组

__

电压 [最小~最大] (V)

1.71V to 3.6V

no

VBUS

no

可调供电输出

-

电源失效

no

加密加速计

__

公钥硬件加速器

True Random Number Generator (TRNG)

加速器

AES-128 Accelerator (AESA)

安全

AES engine

__

电流

Typical Rx/Tx Current (DC/DC Enabled): 6.8/6.1 mA

传感器控制器

__

待机

__

兼容标准

__

接收器灵敏度

-95 dBm (Typical Receiver Sensitivity (Bluetooth Low Energy)

输出功率

+3.5 dBm (Programmable Transmitter Output Power)

射频规范

__

协议

Bluetooth Low Energy/2.4 GHz

蓝牙5性能

-

蓝牙5.1支持

-

尺寸

__

封装型式

-

DSP RAM

__

DSP时钟速度

__

DSP时钟速度

__

音频控制

__

概要

__