FRDMKL27Z User’s Guide, Rev. 0, 02/2015
Freescale Semiconductor, Inc.
11
FRDM-KL27Z hardware description
Figure 8. RGB LED connection
5.12
Input/output headers
The MKL27Z64VLH4 MCU is packaged in a 64-pin LQFP. Some pins are utilized by on-board circuitry,
but many are directly connected to one of four I/O headers (J1, J2, J3 and J4).
Figure 9. I/O headers
5.13
Arduino compatibility
The I/O headers on the FRDM-KL27Z are arranged to allow compatibility with peripheral boards (known
as shields) that connect to Arduino and Arduino-compatible MCU boards. The pins on the headers share
the same mechanical spacing and placement as the I/O headers on the Arduino Uno Revision 3 board
design. See
Figure 9
for compatible signals.
