1 Reply Latest reply on Sep 21, 2017 12:02 PM by DaBr_1233126

    CY8C4246AZI-L445 USB Device Programming with Miniprog 3

      i am considering the CY8C4246AZI-L445  in TQFP48 for a design ,  we want to program this device using a miniprog 3  and the 5-pin connector ,  unfortunatly the data sheet and cypress technical support SUCKS and so we are unclear on how to wire this up !


      on the 5pin connector we are using:

      Pin 2 GND, Pin 3 XRES, Pin 4 SCK and Pin 5 SDIO


      The pins are wired to the following pins on the MCU :


      PIN36: XRES

      PIN16 : SCK

      PIN14: SDIO


      Is this correct ?

        • 1. Re: CY8C4246AZI-L445 USB Device Programming with Miniprog 3

          So the correct names of the pins on the MiniProg3 are:


          1 - VTARG

          2 - GND

          3 - XRES

          4 - SCLK

          5 - SDAT


          The CY8C4246AZI-L445 is a 64 pin device, I assume you mean to say the CY8C4246AZI-L423 device?  It is a 48 pin chip.   If so, then yes, those are the correct pin assignments.  I verified that by checking the pin assignments in PSoC Creator.  (Much faster and easier to see than in the datasheet!)


          Good luck on your project!!