NXP Freedom KL25Z MCU Development Kit FRDM-KL25Z

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Technical Reference

Legislation and Compliance

RoHS Certificate of Compliance

RS Components
RoHS Certificate of Compliance

EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.

Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.

RS definition of RoHS Compliance:

  • The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
  • and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering

The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:

PBB (Polybrominated Biphenyls)0.1%
PBDE ( Polybrominated Diphenyl Ethers)0.1%
Hexavalent Chromium0.1%
DEHP (Bis (2-Ethylhexl) phthalate)0.1%
BBP (Benzyl butyl phthalate)0.1%
DBP (Dibutyl phthalate)0.1%
DIBP (Diisobutyl phthalate)0.1%

The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".

RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.

Compliant Product Details
RS stock number 7653727
Product description NXP Freedom KL25Z MCU Development Kit FRDM-KL25Z
Manufacturer / Brand NXP
Manufacturer part number FRDM-KL25Z

RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK

Statement of Conformity

RS Components
Statement of Conformity

This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.

Compliant Product Details
RS stock number 7653727
Product description NXP Freedom KL25Z MCU Development Kit FRDM-KL25Z
Manufacturer / Brand NXP
Manufacturer part number FRDM-KL25Z

The foregoing information relates to product sold on, or after, the date shown below.


Date Apr 24, 2024

RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132

Product Details

The Kinetis range of ARM Cortex core microcontrollers consists of multiple hardware- and software-compatible Cortex-M0+ and Cortex-M4 MCU families with exceptional low-power performance, memory scalability and feature integration. Families range from the entry-level Cortex-M0+ Kinetis L Series to the high-performance, feature-rich Cortex-M4 Kinetis K and include a wide selection of analogue, communication, HMI, connectivity and security features.

Kinetis L Cortex-M0+ Freedom Board

The NXP Freedom-KL25Z is a development board based on the Kinetus L Series (KL1x/KL2x) microcontrollers. It is designed for rapid microcontroller development and offers the ability to add expansion boards.

What are Kinetis L Series MCUs?
The Kinetis L series of microcontrollers are based on the Arm Cortex-M0+ processor core. They are ultra-low power MCUs which feature USB 2.0 OTG (On-The-Go) and are ideal for applications requiring connectivity.
This particular board houses the MKL25Z128VLK4 MCU. It has a processor speed of 48MHz with 128KB of flash memory and 16KB SRAM memory.

Which Operating Systems does the FRDM-KL25Z use?
The FRDM-KL25Z can be used with the Kinetis Software Development Kit (SDK). It is also compatible with Arm Mbed OS and Zephyr OS.


USB-A to Micro USB-B cable required (not included) - RS Part 790-3656

SUPPLIED_WITH : Quick Reference card

What’s on board?
MCU frequency: 48MHz
Memory: 128KB Flash, 16KB RAM
USB Connectors: 1 for KL25, 1 for OpenSDA software
Capacitive Touch: Touch Pad Slider
Accelerometer: MMA8451Q
Oscillator: 1 x 8MHz
I/O Connectors: Arduino compatible I/O headers (J1, J2, J9 & J10)
Switch: 1 x Reset Switch


Attribute Value
Brand NXP
Classification Development Kit
Processor Part Number MKL25Z128VLK4
Technology MCU
Kit Name Freedom KL25Z
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