PCF85263ATL/AX

[ralexan]

I am looking into using the PCF85263ATL/AX real time clock component.  During evaluation of the data sheet, I noticed that Pin-4(TS/CLK/INTB_n) is not connected if the input is not used; however, I cannot seem to find what to do with pin-9, INTA_n/CLK, and pin-8, CLK.  I don't just want to leave these unconnected so am looking for what is recommended for these pins if they are not being used.

[lisettelozano]

Hello Robert,

You can leave the Pin 9 INTA_n/CLK and Pin 8 CLC unconnected if they are not being used. You can also check the user manual UM10301 for NXP Real Time Clocks here (section 16). 

Have a great day,

Paulina