connecting nrf52832 to other IC on the same PCB

[Automotriz_bgn]

Hi, i'm designing a device which is based on nrf52832 chip and i need to add two IC on my board, the first one is the MAX8856 to charge the battery of my device and the second one is CY7C65213 which is an USB-UART bridge, MAX8856 supply voltage to the SoC when the device is charging and there are two outputs and one input between nrf52832 and 8856 to control some characteristics of the 8856.
In the other hand CY7C65213 have six signals both output and input to the nrf52832 which are for flow control, sleep and wake up of the bridge and transmission data,
so my question is if there could be an impedance matching issue that makes necessary some extra component to communicate nrf52832 to the others IC, or there is necessary just calculate lines´s length to avoid reflection
Thanks for reading and your responses
kind regards

Automotriz_bgn

[ketiljo]

The speed of the data on the lines is slow so there's no need to calculate anything. Just make the connection as you find is the easiest. The only part you need to design carefully is the RF section. Seethe nRF52832 reference layout at https://www.nordicsemi.com/-/media/Software-and-other-downloads/Reference-Layouts/nRF52832CIAARefLayoutv10.zip

Also make sure you have a good and large ground place so the antenna can perform well.

[Automotriz_bgn]

ok, thank you so much for your help, and about the RF section, im using 2450AT18B100E for the antenna and to match it with the nrf52 i'm following the reference circuit from page 546, but about the matching circuit for acoppling the antenna to 50 ohm impedance, i dont know if i must add the matching circuit specified on page 2 of the antenna datasheet, or put the 2450FM07A0029 pass filter as one of your coworkers  explain in this case (devzone.nordicsemi.com/.../52832-antenna-and-matching-network-chips) or if i need an VNA  to obtained antenna´s impedance and design my own PI network, so i would thank you if you could clarify me  about that