NXP Semiconductors
KW45B41Z-EVKUM
KW45B41Z-EVK Board User Manual
1 KW45B41Z-EVK overview
The KW45B41Z-EVK board is a highly configurable, low-power, and cost-effective, evaluation and development
platform for NXP KW45B41Z microcontroller (MCU), which is a low-power, highly secure, single-chip wireless
MCU supporting Arm Cortex-M33 core. It offers an easy-to-use user interface with a virtual serial port and
standard programming and run-control capabilities.
The KW45B41Z MCU includes a 96 MHz Arm Cortex-M33 CPU, a radio transceiver operating in the 2.4 GHz
frequency band (supporting GFSK modulations for Bluetooth Low Energy (LE) 5.3), Bluetooth LE controller
stack, transceiver drivers, up to 1 MB flash, up to 128 KB SRAM, and peripherals optimized to meet the
requirements of target applications. The KW45B41Z MCU supports multiprotocol use cases with Matter, Thread,
Zigbee, Bluetooth LE, and CAN FD for IoT, industrial, and automotive applications.
The KW45B41Z-EVK board provides RF circuitry (including antenna), CAN and LIN transceivers, 16 Mbit
QSPI NOR flash memory, accelerometer, and 32 MHz crystal. It is compatible with the Arduino UNO R3 and
Mikroe click boards. The board is a standalone PCB that supports application development with GFSK libraries
from NXP. It can be used with a wide range of development tools, including NXP MCUXpresso IDE and IAR
Embedded Workbench. The board is lead-free and RoHS-compliant.
For debugging the KW45B41Z MCU, the KW45B41Z-EVK board uses an onboard debug probe, known as
MCU-Link OB (OB stands for "onboard"), which is based on another MCU, LPC55S69. For simplicity, MCU-
Link OB is referred to as "MCU-Link debug probe" or just "MCU-Link" and the KW45B41Z MCU is referred to as
"target MCU" in this document.
This document provides details about the KW45B41Z-EVK board interfaces, power supplies, clocks, push
buttons, jumpers, and LEDs.
Note: For information on the operating temperature range for the board, see Board operating conditions.
1.1 Radio Equipment Directive compliance information
The following information is provided per Article 10.8 of the Radio Equipment Directive 2014/53/EU:
• Frequency bands in which the equipment operates
• The maximum RF power transmitted
Part number RF technology Frequency ranges (EU) Maximum transmitted power
KW45B41Z-EVK Bluetooth LE 2360 MHz – 2483 MHz +10 dBm
EUROPEAN DECLARATION OF CONFORMITY (Simplified DoC per Article 10.9 of the Radio Equipment
Directive 2014/53/EU)
This apparatus, namely KW45B41Z-EVK Development Platform, conforms to the Radio Equipment Directive
2014/53/EU. The full EU Declaration of Conformity for this apparatus is available at European Union Declaration
of Conformity for KW45B41Z-EVK Evaluation Kit.
1.2 Acronyms and abbreviations
Table 1 lists and explains the acronyms and abbreviations used in this document.
Term Description
4PDT Four pole double throw
ADC Analog-to-digital converter
Table 1. Acronyms and abbreviations
KW45B41Z-EVKUM All information provided in this document is subject to legal disclaimers. © 2023 NXP B.V. All rights reserved.
User manual Rev. 2 — 13 February 2023
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