Datasheet

Input/output connectors
FRDM-K64F Freedom Module User’s Guide, User's Guide, Rev. 1, 08/2016
16 NXP Semiconductors
15.2. Bluetooth module
The Add-on Bluetooth interface on FRDM-K64F board is using UART to interface with JY-MCU BT board
V1.05 BT. Alternatively any serial (SCI) module can be used with this connector. Consider that the signals
are not conforming to the RS-232 logic levels, and are 0–3.3 V only. A level shifter, like Maxim DS3232,
should be used with RS-232 devices through proper RS-232 logic levels.
Figure 17. Add-on Bluetooth module
16. Input/output connectors
The MK64FN1M0VLL12 microcontroller is packaged in a 100-pin LQFP. Some pins are utilized in
onboard circuitry, but some are directly connected to one of the four I/O headers.
The pins on the K64 microcontroller are named for their general purpose input/output port pin function.
For example, the first pin on Port A is referred as PTA1. The name assigned to the I/O connector pin is
same as of the K64 pin connected to it, if applicable.