https://community.nxp.com/t5/Other-NXP-Products/PCA9507/m-p/1843679#M22116 <P>The range I aim for is up to 2 meters with one PCA9507. I have a few questions regarding the setup and would appreciate any guidance:</P><OL><LI>Where should I place the PCA9507 in this setup? Should it be closer to the slave (ADT7422) or the master device?</LI><LI>Where should the pull-up resistors be placed in this configuration?</LI><LI>What should be the value of these pull-up resistors?</LI></OL> Wed, 10 Apr 2024 06:54:33 GMT efrati10 2024-04-10T06:54:33Z https://community.nxp.com/t5/Other-NXP-Products/PCA9507/m-p/1843679#M22116 <P>The range I aim for is up to 2 meters with one PCA9507. I have a few questions regarding the setup and would appreciate any guidance:</P><OL><LI>Where should I place the PCA9507 in this setup? Should it be closer to the slave (ADT7422) or the master device?</LI><LI>Where should the pull-up resistors be placed in this configuration?</LI><LI>What should be the value of these pull-up resistors?</LI></OL> Wed, 10 Apr 2024 06:54:33 GMT https://community.nxp.com/t5/Other-NXP-Products/PCA9507/m-p/1843679#M22116 efrati10 2024-04-10T06:54:33Z https://community.nxp.com/t5/Other-NXP-Products/PCA9507/m-p/1843725#M22118 <P>Hello Asher,</P> <P>The PCA9507 is a pretty old (~15 years) 2-wire serial bus extender with limited support from our application team. I would recommend you to take a closer look at chapter 7 of the datasheet, which provides useful design-in information.</P> <P>BR, Tomas</P> Wed, 10 Apr 2024 07:52:28 GMT https://community.nxp.com/t5/Other-NXP-Products/PCA9507/m-p/1843725#M22118 TomasVaverka 2024-04-10T07:52:28Z