FRDM-KW40Z Freescale Freedom Development Board User’s Guide, Rev. 2, 10/2015

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Freescale Semiconductor, Inc.

FRDM-KW40Z development board

4

FRDM-KW40Z development board

4.1

FRDM-KW40Z board overview

The FRDM-KW40Z board is an evaluation board based on Freescale MKW40Z transceiver, and it

provides a platform to evaluate the MKW40Z SoC device and to develop software and applications. The

core device is accompanied by a 32 MHz reference oscillator crystal, RF circuitry (including antenna), and

supporting circuitry.

The FRDM-KW40Z board is intended as the core PCB for MKW40Z device evaluation and application

development, and can be used in the following modes:

•

Simple standalone evaluation platform.

•

Daughter card for other Freedom development platform boards.

•

Mother card for application-specific daughter cards, such as a shield card.

4.1.1

PCB features

The FRDM-KW40Z board has these features:

•

The Freescale Freedom development board form factor.

•

Four-layer, metal, 0.062 inches thick FR4 board.

•

LGA footprint and power supply (DC-DC converter).

•

DC-DC converter with Buck, Boost, and Bypass operation modes.

•

Printed-metal F-Antenna or SMA connector (for conducted measurements).

•

32 MHz reference oscillator crystal.

•

32.768 kHz crystal provided for optional timing oscillator.

•

Standard Freedom daughter card mounting interface (shield).

•

External serial flash memory for OTAP support.

•

Combo sensor—six-axis sensor with integrated linear accelerometer and magnetometer.

4.1.2

Form factor

Figure 4 shows the FRDM-KW40Z board with the location of the I/O headers. This list provides the

details:

•

J1, J2, J3, and J4:

— Headers have standard 0.1 in/2.54 mm pin spacing.

— J2 is 20-pin.

— J1 and J3 are 16-pin.

— J4 is 12-pin.

— All pin headers mounted on the top side of the FRDM-KW40Z board are intended for plugging

into matching receptacles on the Freedom platform development board.