NXP Semiconductors Freescale FRDM-KL43Z, User Manual

NXP Semiconductors

User’s Guide

Document Number: FRDMKL43ZUG

Rev. 1, 05/2020

Contents

© 2020 NXP B.V.

1

FRDM-KL43Z overview 

The Freescale Freedom development platform is a set of 
software and hardware tools for evaluation and 
development. It is ideal for rapid prototyping of 
microcontroller-based applications. The Freescale 
Freedom KL43Z hardware, FRDM-KL43Z, is a simple, 
yet sophisticated design featuring a Kinetis L series 
microcontroller, built on the ARM® Cortex™-M0+ 
core.

FRDM-KL43Z can be used to evaluate the KL43, KL33, 
KL27, and KL17 Kinetis L series devices. It features a 
MKL43Z256VLH4 which has a maximum operating 
frequency of 48 MHz, 256 KB of flash memory, 32 KB 
RAM, 16 KB ROM (with Kinetis bootloader), a 
full-speed device USB controller, segment LCD 
controller, and many analog and digital peripherals. The 
FRDM-KL43Z hardware is form-factor compatible with 
the Arduino™ R3 pin layout, providing a broad range of 
expansion board options. The on-board interfaces 
include a 4-digit segment LCD, a 3-axis digital 

1

FRDM-KL43Z overview   . . . . . . . . . . . . . . . . . . . . . . . . . 1

2

Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3

Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

4

FRDM-KL43Z hardware overview . . . . . . . . . . . . . . . . . . 2

5

FRDM-KL43Z hardware description  . . . . . . . . . . . . . . . . 4

5.1

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5.2

Serial and debug adapter (OpenSDA). . . . . . . . . . . 6

5.3

MKL43Z256 microcontroller  . . . . . . . . . . . . . . . . . . 8

FRDM-KL43Z User’s Guide