topic Re: s32k144 FLEXCAN TXD, RXD Impedance content in S32K

s32k144 FLEXCAN TXD, RXD Impedance content

jung_ho_lee — Mon, 16 May 2022 04:19:47 GMT

Chipset: S32K144HAT0VLH
Function: FLEXCAN
TXD (PTC3)
RXD (PTC2)
Implementation:

Implementation of communication without using CAN transceiver.

Question:

Is there a method or manual to check the impedance of TXD and RXD pins?

Thanks.

Re: s32k144 FLEXCAN TXD, RXD Impedance content

PetrS — Tue, 17 May 2022 08:09:16 GMT

Hi,

TXD (PTC3) / RXD (PTC2) are normal IO pins so refer to datasheet for I/O parameters.

If you want to connect nodes without transceiver on short distance on PCB below connection is commonly used

BR, Petr